2896 lines
100 KiB
C++
2896 lines
100 KiB
C++
// Copyright 2007, Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Author: wan@google.com (Zhanyong Wan)
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// Google Mock - a framework for writing C++ mock classes.
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//
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// This file implements some commonly used argument matchers. More
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// matchers can be defined by the user implementing the
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// MatcherInterface<T> interface if necessary.
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#ifndef GMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_
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#define GMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_
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#include <algorithm>
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#include <limits>
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#include <ostream> // NOLINT
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#include <sstream>
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#include <string>
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#include <vector>
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#include <gmock/gmock-printers.h>
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#include <gmock/internal/gmock-internal-utils.h>
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#include <gmock/internal/gmock-port.h>
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#include <gtest/gtest.h>
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namespace testing {
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// To implement a matcher Foo for type T, define:
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// 1. a class FooMatcherImpl that implements the
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// MatcherInterface<T> interface, and
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// 2. a factory function that creates a Matcher<T> object from a
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// FooMatcherImpl*.
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//
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// The two-level delegation design makes it possible to allow a user
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// to write "v" instead of "Eq(v)" where a Matcher is expected, which
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// is impossible if we pass matchers by pointers. It also eases
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// ownership management as Matcher objects can now be copied like
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// plain values.
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// MatchResultListener is an abstract class. Its << operator can be
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// used by a matcher to explain why a value matches or doesn't match.
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//
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// TODO(wan@google.com): add method
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// bool InterestedInWhy(bool result) const;
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// to indicate whether the listener is interested in why the match
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// result is 'result'.
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class MatchResultListener {
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public:
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// Creates a listener object with the given underlying ostream. The
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// listener does not own the ostream.
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explicit MatchResultListener(::std::ostream* os) : stream_(os) {}
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virtual ~MatchResultListener() = 0; // Makes this class abstract.
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// Streams x to the underlying ostream; does nothing if the ostream
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// is NULL.
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template <typename T>
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MatchResultListener& operator<<(const T& x) {
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if (stream_ != NULL)
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*stream_ << x;
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return *this;
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}
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// Returns the underlying ostream.
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::std::ostream* stream() { return stream_; }
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// Returns true iff the listener is interested in an explanation of
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// the match result. A matcher's MatchAndExplain() method can use
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// this information to avoid generating the explanation when no one
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// intends to hear it.
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bool IsInterested() const { return stream_ != NULL; }
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private:
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::std::ostream* const stream_;
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GTEST_DISALLOW_COPY_AND_ASSIGN_(MatchResultListener);
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};
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inline MatchResultListener::~MatchResultListener() {
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}
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// The implementation of a matcher.
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template <typename T>
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class MatcherInterface {
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public:
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virtual ~MatcherInterface() {}
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// Returns true iff the matcher matches x; also explains the match
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// result to 'listener', in the form of a non-restrictive relative
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// clause ("which ...", "whose ...", etc) that describes x. For
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// example, the MatchAndExplain() method of the Pointee(...) matcher
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// should generate an explanation like "which points to ...".
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//
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// You should override this method when defining a new matcher.
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//
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// It's the responsibility of the caller (Google Mock) to guarantee
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// that 'listener' is not NULL. This helps to simplify a matcher's
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// implementation when it doesn't care about the performance, as it
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// can talk to 'listener' without checking its validity first.
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// However, in order to implement dummy listeners efficiently,
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// listener->stream() may be NULL.
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virtual bool MatchAndExplain(T x, MatchResultListener* listener) const = 0;
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// Describes this matcher to an ostream. The function should print
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// a verb phrase that describes the property a value matching this
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// matcher should have. The subject of the verb phrase is the value
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// being matched. For example, the DescribeTo() method of the Gt(7)
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// matcher prints "is greater than 7".
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virtual void DescribeTo(::std::ostream* os) const = 0;
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// Describes the negation of this matcher to an ostream. For
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// example, if the description of this matcher is "is greater than
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// 7", the negated description could be "is not greater than 7".
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// You are not required to override this when implementing
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// MatcherInterface, but it is highly advised so that your matcher
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// can produce good error messages.
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virtual void DescribeNegationTo(::std::ostream* os) const {
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*os << "not (";
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DescribeTo(os);
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*os << ")";
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}
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};
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namespace internal {
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// A match result listener that ignores the explanation.
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class DummyMatchResultListener : public MatchResultListener {
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public:
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DummyMatchResultListener() : MatchResultListener(NULL) {}
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private:
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GTEST_DISALLOW_COPY_AND_ASSIGN_(DummyMatchResultListener);
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};
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// A match result listener that forwards the explanation to a given
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// ostream. The difference between this and MatchResultListener is
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// that the former is concrete.
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class StreamMatchResultListener : public MatchResultListener {
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public:
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explicit StreamMatchResultListener(::std::ostream* os)
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: MatchResultListener(os) {}
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private:
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GTEST_DISALLOW_COPY_AND_ASSIGN_(StreamMatchResultListener);
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};
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// A match result listener that stores the explanation in a string.
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class StringMatchResultListener : public MatchResultListener {
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public:
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StringMatchResultListener() : MatchResultListener(&ss_) {}
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// Returns the explanation heard so far.
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internal::string str() const { return ss_.str(); }
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private:
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::std::stringstream ss_;
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GTEST_DISALLOW_COPY_AND_ASSIGN_(StringMatchResultListener);
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};
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// An internal class for implementing Matcher<T>, which will derive
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// from it. We put functionalities common to all Matcher<T>
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// specializations here to avoid code duplication.
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template <typename T>
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class MatcherBase {
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public:
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// Returns true iff the matcher matches x; also explains the match
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// result to 'listener'.
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bool MatchAndExplain(T x, MatchResultListener* listener) const {
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return impl_->MatchAndExplain(x, listener);
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}
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// Returns true iff this matcher matches x.
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bool Matches(T x) const {
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DummyMatchResultListener dummy;
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return MatchAndExplain(x, &dummy);
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}
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// Describes this matcher to an ostream.
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void DescribeTo(::std::ostream* os) const { impl_->DescribeTo(os); }
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// Describes the negation of this matcher to an ostream.
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void DescribeNegationTo(::std::ostream* os) const {
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impl_->DescribeNegationTo(os);
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}
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// Explains why x matches, or doesn't match, the matcher.
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void ExplainMatchResultTo(T x, ::std::ostream* os) const {
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StreamMatchResultListener listener(os);
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MatchAndExplain(x, &listener);
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}
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protected:
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MatcherBase() {}
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// Constructs a matcher from its implementation.
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explicit MatcherBase(const MatcherInterface<T>* impl)
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: impl_(impl) {}
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virtual ~MatcherBase() {}
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private:
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// shared_ptr (util/gtl/shared_ptr.h) and linked_ptr have similar
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// interfaces. The former dynamically allocates a chunk of memory
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// to hold the reference count, while the latter tracks all
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// references using a circular linked list without allocating
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// memory. It has been observed that linked_ptr performs better in
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// typical scenarios. However, shared_ptr can out-perform
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// linked_ptr when there are many more uses of the copy constructor
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// than the default constructor.
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//
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// If performance becomes a problem, we should see if using
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// shared_ptr helps.
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::testing::internal::linked_ptr<const MatcherInterface<T> > impl_;
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};
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} // namespace internal
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// A Matcher<T> is a copyable and IMMUTABLE (except by assignment)
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// object that can check whether a value of type T matches. The
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// implementation of Matcher<T> is just a linked_ptr to const
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// MatcherInterface<T>, so copying is fairly cheap. Don't inherit
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// from Matcher!
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template <typename T>
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class Matcher : public internal::MatcherBase<T> {
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public:
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// Constructs a null matcher. Needed for storing Matcher objects in
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// STL containers.
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Matcher() {}
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// Constructs a matcher from its implementation.
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explicit Matcher(const MatcherInterface<T>* impl)
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: internal::MatcherBase<T>(impl) {}
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// Implicit constructor here allows people to write
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// EXPECT_CALL(foo, Bar(5)) instead of EXPECT_CALL(foo, Bar(Eq(5))) sometimes
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Matcher(T value); // NOLINT
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};
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// The following two specializations allow the user to write str
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// instead of Eq(str) and "foo" instead of Eq("foo") when a string
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// matcher is expected.
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template <>
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class Matcher<const internal::string&>
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: public internal::MatcherBase<const internal::string&> {
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public:
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Matcher() {}
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explicit Matcher(const MatcherInterface<const internal::string&>* impl)
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: internal::MatcherBase<const internal::string&>(impl) {}
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// Allows the user to write str instead of Eq(str) sometimes, where
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// str is a string object.
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Matcher(const internal::string& s); // NOLINT
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// Allows the user to write "foo" instead of Eq("foo") sometimes.
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Matcher(const char* s); // NOLINT
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};
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template <>
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class Matcher<internal::string>
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: public internal::MatcherBase<internal::string> {
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public:
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Matcher() {}
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explicit Matcher(const MatcherInterface<internal::string>* impl)
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: internal::MatcherBase<internal::string>(impl) {}
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// Allows the user to write str instead of Eq(str) sometimes, where
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// str is a string object.
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Matcher(const internal::string& s); // NOLINT
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// Allows the user to write "foo" instead of Eq("foo") sometimes.
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Matcher(const char* s); // NOLINT
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};
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// The PolymorphicMatcher class template makes it easy to implement a
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// polymorphic matcher (i.e. a matcher that can match values of more
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// than one type, e.g. Eq(n) and NotNull()).
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//
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// To define a polymorphic matcher, a user should provide an Impl
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// class that has a DescribeTo() method and a DescribeNegationTo()
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// method, and define a member function (or member function template)
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//
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// bool MatchAndExplain(const Value& value,
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// MatchResultListener* listener) const;
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//
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// See the definition of NotNull() for a complete example.
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template <class Impl>
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class PolymorphicMatcher {
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public:
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explicit PolymorphicMatcher(const Impl& an_impl) : impl_(an_impl) {}
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// Returns a mutable reference to the underlying matcher
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// implementation object.
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Impl& mutable_impl() { return impl_; }
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// Returns an immutable reference to the underlying matcher
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// implementation object.
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const Impl& impl() const { return impl_; }
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template <typename T>
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operator Matcher<T>() const {
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return Matcher<T>(new MonomorphicImpl<T>(impl_));
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}
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private:
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template <typename T>
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class MonomorphicImpl : public MatcherInterface<T> {
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public:
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explicit MonomorphicImpl(const Impl& impl) : impl_(impl) {}
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virtual void DescribeTo(::std::ostream* os) const {
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impl_.DescribeTo(os);
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}
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virtual void DescribeNegationTo(::std::ostream* os) const {
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impl_.DescribeNegationTo(os);
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}
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virtual bool MatchAndExplain(T x, MatchResultListener* listener) const {
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return impl_.MatchAndExplain(x, listener);
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}
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private:
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const Impl impl_;
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GTEST_DISALLOW_ASSIGN_(MonomorphicImpl);
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};
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Impl impl_;
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GTEST_DISALLOW_ASSIGN_(PolymorphicMatcher);
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};
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// Creates a matcher from its implementation. This is easier to use
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// than the Matcher<T> constructor as it doesn't require you to
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// explicitly write the template argument, e.g.
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//
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// MakeMatcher(foo);
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// vs
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// Matcher<const string&>(foo);
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template <typename T>
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inline Matcher<T> MakeMatcher(const MatcherInterface<T>* impl) {
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return Matcher<T>(impl);
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};
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// Creates a polymorphic matcher from its implementation. This is
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// easier to use than the PolymorphicMatcher<Impl> constructor as it
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// doesn't require you to explicitly write the template argument, e.g.
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//
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// MakePolymorphicMatcher(foo);
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// vs
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// PolymorphicMatcher<TypeOfFoo>(foo);
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template <class Impl>
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inline PolymorphicMatcher<Impl> MakePolymorphicMatcher(const Impl& impl) {
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return PolymorphicMatcher<Impl>(impl);
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}
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// In order to be safe and clear, casting between different matcher
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// types is done explicitly via MatcherCast<T>(m), which takes a
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// matcher m and returns a Matcher<T>. It compiles only when T can be
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// statically converted to the argument type of m.
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template <typename T, typename M>
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Matcher<T> MatcherCast(M m);
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// Implements SafeMatcherCast().
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//
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// We use an intermediate class to do the actual safe casting as Nokia's
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// Symbian compiler cannot decide between
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// template <T, M> ... (M) and
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// template <T, U> ... (const Matcher<U>&)
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// for function templates but can for member function templates.
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template <typename T>
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class SafeMatcherCastImpl {
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public:
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// This overload handles polymorphic matchers only since monomorphic
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// matchers are handled by the next one.
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template <typename M>
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static inline Matcher<T> Cast(M polymorphic_matcher) {
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return Matcher<T>(polymorphic_matcher);
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}
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// This overload handles monomorphic matchers.
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//
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// In general, if type T can be implicitly converted to type U, we can
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// safely convert a Matcher<U> to a Matcher<T> (i.e. Matcher is
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// contravariant): just keep a copy of the original Matcher<U>, convert the
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// argument from type T to U, and then pass it to the underlying Matcher<U>.
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// The only exception is when U is a reference and T is not, as the
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// underlying Matcher<U> may be interested in the argument's address, which
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// is not preserved in the conversion from T to U.
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template <typename U>
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static inline Matcher<T> Cast(const Matcher<U>& matcher) {
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// Enforce that T can be implicitly converted to U.
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GMOCK_COMPILE_ASSERT_((internal::ImplicitlyConvertible<T, U>::value),
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T_must_be_implicitly_convertible_to_U);
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// Enforce that we are not converting a non-reference type T to a reference
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// type U.
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GMOCK_COMPILE_ASSERT_(
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internal::is_reference<T>::value || !internal::is_reference<U>::value,
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cannot_convert_non_referentce_arg_to_reference);
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// In case both T and U are arithmetic types, enforce that the
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// conversion is not lossy.
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typedef GMOCK_REMOVE_CONST_(GMOCK_REMOVE_REFERENCE_(T)) RawT;
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typedef GMOCK_REMOVE_CONST_(GMOCK_REMOVE_REFERENCE_(U)) RawU;
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const bool kTIsOther = GMOCK_KIND_OF_(RawT) == internal::kOther;
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const bool kUIsOther = GMOCK_KIND_OF_(RawU) == internal::kOther;
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GMOCK_COMPILE_ASSERT_(
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kTIsOther || kUIsOther ||
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(internal::LosslessArithmeticConvertible<RawT, RawU>::value),
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conversion_of_arithmetic_types_must_be_lossless);
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return MatcherCast<T>(matcher);
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}
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};
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template <typename T, typename M>
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inline Matcher<T> SafeMatcherCast(const M& polymorphic_matcher) {
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return SafeMatcherCastImpl<T>::Cast(polymorphic_matcher);
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}
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// A<T>() returns a matcher that matches any value of type T.
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template <typename T>
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Matcher<T> A();
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// Anything inside the 'internal' namespace IS INTERNAL IMPLEMENTATION
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// and MUST NOT BE USED IN USER CODE!!!
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namespace internal {
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// If the given string is not empty and os is not NULL, wraps the
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// string inside a pair of parentheses and streams the result to os.
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inline void StreamInParensAsNeeded(const internal::string& str,
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::std::ostream* os) {
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if (!str.empty() && os != NULL) {
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*os << " (" << str << ")";
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}
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}
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// An internal helper class for doing compile-time loop on a tuple's
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// fields.
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template <size_t N>
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class TuplePrefix {
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public:
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// TuplePrefix<N>::Matches(matcher_tuple, value_tuple) returns true
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// iff the first N fields of matcher_tuple matches the first N
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// fields of value_tuple, respectively.
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template <typename MatcherTuple, typename ValueTuple>
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static bool Matches(const MatcherTuple& matcher_tuple,
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const ValueTuple& value_tuple) {
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using ::std::tr1::get;
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return TuplePrefix<N - 1>::Matches(matcher_tuple, value_tuple)
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&& get<N - 1>(matcher_tuple).Matches(get<N - 1>(value_tuple));
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}
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// TuplePrefix<N>::DescribeMatchFailuresTo(matchers, values, os)
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// describes failures in matching the first N fields of matchers
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// against the first N fields of values. If there is no failure,
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// nothing will be streamed to os.
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template <typename MatcherTuple, typename ValueTuple>
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static void DescribeMatchFailuresTo(const MatcherTuple& matchers,
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const ValueTuple& values,
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::std::ostream* os) {
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using ::std::tr1::tuple_element;
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using ::std::tr1::get;
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// First, describes failures in the first N - 1 fields.
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TuplePrefix<N - 1>::DescribeMatchFailuresTo(matchers, values, os);
|
|
|
|
// Then describes the failure (if any) in the (N - 1)-th (0-based)
|
|
// field.
|
|
typename tuple_element<N - 1, MatcherTuple>::type matcher =
|
|
get<N - 1>(matchers);
|
|
typedef typename tuple_element<N - 1, ValueTuple>::type Value;
|
|
Value value = get<N - 1>(values);
|
|
StringMatchResultListener listener;
|
|
if (!matcher.MatchAndExplain(value, &listener)) {
|
|
// TODO(wan): include in the message the name of the parameter
|
|
// as used in MOCK_METHOD*() when possible.
|
|
*os << " Expected arg #" << N - 1 << ": ";
|
|
get<N - 1>(matchers).DescribeTo(os);
|
|
*os << "\n Actual: ";
|
|
// We remove the reference in type Value to prevent the
|
|
// universal printer from printing the address of value, which
|
|
// isn't interesting to the user most of the time. The
|
|
// matcher's MatchAndExplain() method handles the case when
|
|
// the address is interesting.
|
|
internal::UniversalPrinter<GMOCK_REMOVE_REFERENCE_(Value)>::
|
|
Print(value, os);
|
|
|
|
StreamInParensAsNeeded(listener.str(), os);
|
|
*os << "\n";
|
|
}
|
|
}
|
|
};
|
|
|
|
// The base case.
|
|
template <>
|
|
class TuplePrefix<0> {
|
|
public:
|
|
template <typename MatcherTuple, typename ValueTuple>
|
|
static bool Matches(const MatcherTuple& /* matcher_tuple */,
|
|
const ValueTuple& /* value_tuple */) {
|
|
return true;
|
|
}
|
|
|
|
template <typename MatcherTuple, typename ValueTuple>
|
|
static void DescribeMatchFailuresTo(const MatcherTuple& /* matchers */,
|
|
const ValueTuple& /* values */,
|
|
::std::ostream* /* os */) {}
|
|
};
|
|
|
|
// TupleMatches(matcher_tuple, value_tuple) returns true iff all
|
|
// matchers in matcher_tuple match the corresponding fields in
|
|
// value_tuple. It is a compiler error if matcher_tuple and
|
|
// value_tuple have different number of fields or incompatible field
|
|
// types.
|
|
template <typename MatcherTuple, typename ValueTuple>
|
|
bool TupleMatches(const MatcherTuple& matcher_tuple,
|
|
const ValueTuple& value_tuple) {
|
|
using ::std::tr1::tuple_size;
|
|
// Makes sure that matcher_tuple and value_tuple have the same
|
|
// number of fields.
|
|
GMOCK_COMPILE_ASSERT_(tuple_size<MatcherTuple>::value ==
|
|
tuple_size<ValueTuple>::value,
|
|
matcher_and_value_have_different_numbers_of_fields);
|
|
return TuplePrefix<tuple_size<ValueTuple>::value>::
|
|
Matches(matcher_tuple, value_tuple);
|
|
}
|
|
|
|
// Describes failures in matching matchers against values. If there
|
|
// is no failure, nothing will be streamed to os.
|
|
template <typename MatcherTuple, typename ValueTuple>
|
|
void DescribeMatchFailureTupleTo(const MatcherTuple& matchers,
|
|
const ValueTuple& values,
|
|
::std::ostream* os) {
|
|
using ::std::tr1::tuple_size;
|
|
TuplePrefix<tuple_size<MatcherTuple>::value>::DescribeMatchFailuresTo(
|
|
matchers, values, os);
|
|
}
|
|
|
|
// The MatcherCastImpl class template is a helper for implementing
|
|
// MatcherCast(). We need this helper in order to partially
|
|
// specialize the implementation of MatcherCast() (C++ allows
|
|
// class/struct templates to be partially specialized, but not
|
|
// function templates.).
|
|
|
|
// This general version is used when MatcherCast()'s argument is a
|
|
// polymorphic matcher (i.e. something that can be converted to a
|
|
// Matcher but is not one yet; for example, Eq(value)).
|
|
template <typename T, typename M>
|
|
class MatcherCastImpl {
|
|
public:
|
|
static Matcher<T> Cast(M polymorphic_matcher) {
|
|
return Matcher<T>(polymorphic_matcher);
|
|
}
|
|
};
|
|
|
|
// This more specialized version is used when MatcherCast()'s argument
|
|
// is already a Matcher. This only compiles when type T can be
|
|
// statically converted to type U.
|
|
template <typename T, typename U>
|
|
class MatcherCastImpl<T, Matcher<U> > {
|
|
public:
|
|
static Matcher<T> Cast(const Matcher<U>& source_matcher) {
|
|
return Matcher<T>(new Impl(source_matcher));
|
|
}
|
|
|
|
private:
|
|
class Impl : public MatcherInterface<T> {
|
|
public:
|
|
explicit Impl(const Matcher<U>& source_matcher)
|
|
: source_matcher_(source_matcher) {}
|
|
|
|
// We delegate the matching logic to the source matcher.
|
|
virtual bool MatchAndExplain(T x, MatchResultListener* listener) const {
|
|
return source_matcher_.MatchAndExplain(static_cast<U>(x), listener);
|
|
}
|
|
|
|
virtual void DescribeTo(::std::ostream* os) const {
|
|
source_matcher_.DescribeTo(os);
|
|
}
|
|
|
|
virtual void DescribeNegationTo(::std::ostream* os) const {
|
|
source_matcher_.DescribeNegationTo(os);
|
|
}
|
|
|
|
private:
|
|
const Matcher<U> source_matcher_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(Impl);
|
|
};
|
|
};
|
|
|
|
// This even more specialized version is used for efficiently casting
|
|
// a matcher to its own type.
|
|
template <typename T>
|
|
class MatcherCastImpl<T, Matcher<T> > {
|
|
public:
|
|
static Matcher<T> Cast(const Matcher<T>& matcher) { return matcher; }
|
|
};
|
|
|
|
// Implements A<T>().
|
|
template <typename T>
|
|
class AnyMatcherImpl : public MatcherInterface<T> {
|
|
public:
|
|
virtual bool MatchAndExplain(
|
|
T /* x */, MatchResultListener* /* listener */) const { return true; }
|
|
virtual void DescribeTo(::std::ostream* os) const { *os << "is anything"; }
|
|
virtual void DescribeNegationTo(::std::ostream* os) const {
|
|
// This is mostly for completeness' safe, as it's not very useful
|
|
// to write Not(A<bool>()). However we cannot completely rule out
|
|
// such a possibility, and it doesn't hurt to be prepared.
|
|
*os << "never matches";
|
|
}
|
|
};
|
|
|
|
// Implements _, a matcher that matches any value of any
|
|
// type. This is a polymorphic matcher, so we need a template type
|
|
// conversion operator to make it appearing as a Matcher<T> for any
|
|
// type T.
|
|
class AnythingMatcher {
|
|
public:
|
|
template <typename T>
|
|
operator Matcher<T>() const { return A<T>(); }
|
|
};
|
|
|
|
// Implements a matcher that compares a given value with a
|
|
// pre-supplied value using one of the ==, <=, <, etc, operators. The
|
|
// two values being compared don't have to have the same type.
|
|
//
|
|
// The matcher defined here is polymorphic (for example, Eq(5) can be
|
|
// used to match an int, a short, a double, etc). Therefore we use
|
|
// a template type conversion operator in the implementation.
|
|
//
|
|
// We define this as a macro in order to eliminate duplicated source
|
|
// code.
|
|
//
|
|
// The following template definition assumes that the Rhs parameter is
|
|
// a "bare" type (i.e. neither 'const T' nor 'T&').
|
|
#define GMOCK_IMPLEMENT_COMPARISON_MATCHER_(name, op, relation) \
|
|
template <typename Rhs> class name##Matcher { \
|
|
public: \
|
|
explicit name##Matcher(const Rhs& rhs) : rhs_(rhs) {} \
|
|
template <typename Lhs> \
|
|
operator Matcher<Lhs>() const { \
|
|
return MakeMatcher(new Impl<Lhs>(rhs_)); \
|
|
} \
|
|
private: \
|
|
template <typename Lhs> \
|
|
class Impl : public MatcherInterface<Lhs> { \
|
|
public: \
|
|
explicit Impl(const Rhs& rhs) : rhs_(rhs) {} \
|
|
virtual bool MatchAndExplain(\
|
|
Lhs lhs, MatchResultListener* /* listener */) const { \
|
|
return lhs op rhs_; \
|
|
} \
|
|
virtual void DescribeTo(::std::ostream* os) const { \
|
|
*os << "is " relation " "; \
|
|
UniversalPrinter<Rhs>::Print(rhs_, os); \
|
|
} \
|
|
virtual void DescribeNegationTo(::std::ostream* os) const { \
|
|
*os << "is not " relation " "; \
|
|
UniversalPrinter<Rhs>::Print(rhs_, os); \
|
|
} \
|
|
private: \
|
|
Rhs rhs_; \
|
|
GTEST_DISALLOW_ASSIGN_(Impl); \
|
|
}; \
|
|
Rhs rhs_; \
|
|
GTEST_DISALLOW_ASSIGN_(name##Matcher); \
|
|
}
|
|
|
|
// Implements Eq(v), Ge(v), Gt(v), Le(v), Lt(v), and Ne(v)
|
|
// respectively.
|
|
GMOCK_IMPLEMENT_COMPARISON_MATCHER_(Eq, ==, "equal to");
|
|
GMOCK_IMPLEMENT_COMPARISON_MATCHER_(Ge, >=, "greater than or equal to");
|
|
GMOCK_IMPLEMENT_COMPARISON_MATCHER_(Gt, >, "greater than");
|
|
GMOCK_IMPLEMENT_COMPARISON_MATCHER_(Le, <=, "less than or equal to");
|
|
GMOCK_IMPLEMENT_COMPARISON_MATCHER_(Lt, <, "less than");
|
|
GMOCK_IMPLEMENT_COMPARISON_MATCHER_(Ne, !=, "not equal to");
|
|
|
|
#undef GMOCK_IMPLEMENT_COMPARISON_MATCHER_
|
|
|
|
// Implements the polymorphic IsNull() matcher, which matches any raw or smart
|
|
// pointer that is NULL.
|
|
class IsNullMatcher {
|
|
public:
|
|
template <typename Pointer>
|
|
bool MatchAndExplain(const Pointer& p,
|
|
MatchResultListener* /* listener */) const {
|
|
return GetRawPointer(p) == NULL;
|
|
}
|
|
|
|
void DescribeTo(::std::ostream* os) const { *os << "is NULL"; }
|
|
void DescribeNegationTo(::std::ostream* os) const {
|
|
*os << "is not NULL";
|
|
}
|
|
};
|
|
|
|
// Implements the polymorphic NotNull() matcher, which matches any raw or smart
|
|
// pointer that is not NULL.
|
|
class NotNullMatcher {
|
|
public:
|
|
template <typename Pointer>
|
|
bool MatchAndExplain(const Pointer& p,
|
|
MatchResultListener* /* listener */) const {
|
|
return GetRawPointer(p) != NULL;
|
|
}
|
|
|
|
void DescribeTo(::std::ostream* os) const { *os << "is not NULL"; }
|
|
void DescribeNegationTo(::std::ostream* os) const {
|
|
*os << "is NULL";
|
|
}
|
|
};
|
|
|
|
// Ref(variable) matches any argument that is a reference to
|
|
// 'variable'. This matcher is polymorphic as it can match any
|
|
// super type of the type of 'variable'.
|
|
//
|
|
// The RefMatcher template class implements Ref(variable). It can
|
|
// only be instantiated with a reference type. This prevents a user
|
|
// from mistakenly using Ref(x) to match a non-reference function
|
|
// argument. For example, the following will righteously cause a
|
|
// compiler error:
|
|
//
|
|
// int n;
|
|
// Matcher<int> m1 = Ref(n); // This won't compile.
|
|
// Matcher<int&> m2 = Ref(n); // This will compile.
|
|
template <typename T>
|
|
class RefMatcher;
|
|
|
|
template <typename T>
|
|
class RefMatcher<T&> {
|
|
// Google Mock is a generic framework and thus needs to support
|
|
// mocking any function types, including those that take non-const
|
|
// reference arguments. Therefore the template parameter T (and
|
|
// Super below) can be instantiated to either a const type or a
|
|
// non-const type.
|
|
public:
|
|
// RefMatcher() takes a T& instead of const T&, as we want the
|
|
// compiler to catch using Ref(const_value) as a matcher for a
|
|
// non-const reference.
|
|
explicit RefMatcher(T& x) : object_(x) {} // NOLINT
|
|
|
|
template <typename Super>
|
|
operator Matcher<Super&>() const {
|
|
// By passing object_ (type T&) to Impl(), which expects a Super&,
|
|
// we make sure that Super is a super type of T. In particular,
|
|
// this catches using Ref(const_value) as a matcher for a
|
|
// non-const reference, as you cannot implicitly convert a const
|
|
// reference to a non-const reference.
|
|
return MakeMatcher(new Impl<Super>(object_));
|
|
}
|
|
|
|
private:
|
|
template <typename Super>
|
|
class Impl : public MatcherInterface<Super&> {
|
|
public:
|
|
explicit Impl(Super& x) : object_(x) {} // NOLINT
|
|
|
|
// MatchAndExplain() takes a Super& (as opposed to const Super&)
|
|
// in order to match the interface MatcherInterface<Super&>.
|
|
virtual bool MatchAndExplain(
|
|
Super& x, MatchResultListener* listener) const {
|
|
*listener << "is located @" << static_cast<const void*>(&x);
|
|
return &x == &object_;
|
|
}
|
|
|
|
virtual void DescribeTo(::std::ostream* os) const {
|
|
*os << "references the variable ";
|
|
UniversalPrinter<Super&>::Print(object_, os);
|
|
}
|
|
|
|
virtual void DescribeNegationTo(::std::ostream* os) const {
|
|
*os << "does not reference the variable ";
|
|
UniversalPrinter<Super&>::Print(object_, os);
|
|
}
|
|
|
|
private:
|
|
const Super& object_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(Impl);
|
|
};
|
|
|
|
T& object_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(RefMatcher);
|
|
};
|
|
|
|
// Polymorphic helper functions for narrow and wide string matchers.
|
|
inline bool CaseInsensitiveCStringEquals(const char* lhs, const char* rhs) {
|
|
return String::CaseInsensitiveCStringEquals(lhs, rhs);
|
|
}
|
|
|
|
inline bool CaseInsensitiveCStringEquals(const wchar_t* lhs,
|
|
const wchar_t* rhs) {
|
|
return String::CaseInsensitiveWideCStringEquals(lhs, rhs);
|
|
}
|
|
|
|
// String comparison for narrow or wide strings that can have embedded NUL
|
|
// characters.
|
|
template <typename StringType>
|
|
bool CaseInsensitiveStringEquals(const StringType& s1,
|
|
const StringType& s2) {
|
|
// Are the heads equal?
|
|
if (!CaseInsensitiveCStringEquals(s1.c_str(), s2.c_str())) {
|
|
return false;
|
|
}
|
|
|
|
// Skip the equal heads.
|
|
const typename StringType::value_type nul = 0;
|
|
const size_t i1 = s1.find(nul), i2 = s2.find(nul);
|
|
|
|
// Are we at the end of either s1 or s2?
|
|
if (i1 == StringType::npos || i2 == StringType::npos) {
|
|
return i1 == i2;
|
|
}
|
|
|
|
// Are the tails equal?
|
|
return CaseInsensitiveStringEquals(s1.substr(i1 + 1), s2.substr(i2 + 1));
|
|
}
|
|
|
|
// String matchers.
|
|
|
|
// Implements equality-based string matchers like StrEq, StrCaseNe, and etc.
|
|
template <typename StringType>
|
|
class StrEqualityMatcher {
|
|
public:
|
|
typedef typename StringType::const_pointer ConstCharPointer;
|
|
|
|
StrEqualityMatcher(const StringType& str, bool expect_eq,
|
|
bool case_sensitive)
|
|
: string_(str), expect_eq_(expect_eq), case_sensitive_(case_sensitive) {}
|
|
|
|
// When expect_eq_ is true, returns true iff s is equal to string_;
|
|
// otherwise returns true iff s is not equal to string_.
|
|
bool MatchAndExplain(ConstCharPointer s,
|
|
MatchResultListener* listener) const {
|
|
if (s == NULL) {
|
|
return !expect_eq_;
|
|
}
|
|
return MatchAndExplain(StringType(s), listener);
|
|
}
|
|
|
|
bool MatchAndExplain(const StringType& s,
|
|
MatchResultListener* /* listener */) const {
|
|
const bool eq = case_sensitive_ ? s == string_ :
|
|
CaseInsensitiveStringEquals(s, string_);
|
|
return expect_eq_ == eq;
|
|
}
|
|
|
|
void DescribeTo(::std::ostream* os) const {
|
|
DescribeToHelper(expect_eq_, os);
|
|
}
|
|
|
|
void DescribeNegationTo(::std::ostream* os) const {
|
|
DescribeToHelper(!expect_eq_, os);
|
|
}
|
|
|
|
private:
|
|
void DescribeToHelper(bool expect_eq, ::std::ostream* os) const {
|
|
*os << "is ";
|
|
if (!expect_eq) {
|
|
*os << "not ";
|
|
}
|
|
*os << "equal to ";
|
|
if (!case_sensitive_) {
|
|
*os << "(ignoring case) ";
|
|
}
|
|
UniversalPrinter<StringType>::Print(string_, os);
|
|
}
|
|
|
|
const StringType string_;
|
|
const bool expect_eq_;
|
|
const bool case_sensitive_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(StrEqualityMatcher);
|
|
};
|
|
|
|
// Implements the polymorphic HasSubstr(substring) matcher, which
|
|
// can be used as a Matcher<T> as long as T can be converted to a
|
|
// string.
|
|
template <typename StringType>
|
|
class HasSubstrMatcher {
|
|
public:
|
|
typedef typename StringType::const_pointer ConstCharPointer;
|
|
|
|
explicit HasSubstrMatcher(const StringType& substring)
|
|
: substring_(substring) {}
|
|
|
|
// These overloaded methods allow HasSubstr(substring) to be used as a
|
|
// Matcher<T> as long as T can be converted to string. Returns true
|
|
// iff s contains substring_ as a substring.
|
|
bool MatchAndExplain(ConstCharPointer s,
|
|
MatchResultListener* listener) const {
|
|
return s != NULL && MatchAndExplain(StringType(s), listener);
|
|
}
|
|
|
|
bool MatchAndExplain(const StringType& s,
|
|
MatchResultListener* /* listener */) const {
|
|
return s.find(substring_) != StringType::npos;
|
|
}
|
|
|
|
// Describes what this matcher matches.
|
|
void DescribeTo(::std::ostream* os) const {
|
|
*os << "has substring ";
|
|
UniversalPrinter<StringType>::Print(substring_, os);
|
|
}
|
|
|
|
void DescribeNegationTo(::std::ostream* os) const {
|
|
*os << "has no substring ";
|
|
UniversalPrinter<StringType>::Print(substring_, os);
|
|
}
|
|
|
|
private:
|
|
const StringType substring_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(HasSubstrMatcher);
|
|
};
|
|
|
|
// Implements the polymorphic StartsWith(substring) matcher, which
|
|
// can be used as a Matcher<T> as long as T can be converted to a
|
|
// string.
|
|
template <typename StringType>
|
|
class StartsWithMatcher {
|
|
public:
|
|
typedef typename StringType::const_pointer ConstCharPointer;
|
|
|
|
explicit StartsWithMatcher(const StringType& prefix) : prefix_(prefix) {
|
|
}
|
|
|
|
// These overloaded methods allow StartsWith(prefix) to be used as a
|
|
// Matcher<T> as long as T can be converted to string. Returns true
|
|
// iff s starts with prefix_.
|
|
bool MatchAndExplain(ConstCharPointer s,
|
|
MatchResultListener* listener) const {
|
|
return s != NULL && MatchAndExplain(StringType(s), listener);
|
|
}
|
|
|
|
bool MatchAndExplain(const StringType& s,
|
|
MatchResultListener* /* listener */) const {
|
|
return s.length() >= prefix_.length() &&
|
|
s.substr(0, prefix_.length()) == prefix_;
|
|
}
|
|
|
|
void DescribeTo(::std::ostream* os) const {
|
|
*os << "starts with ";
|
|
UniversalPrinter<StringType>::Print(prefix_, os);
|
|
}
|
|
|
|
void DescribeNegationTo(::std::ostream* os) const {
|
|
*os << "doesn't start with ";
|
|
UniversalPrinter<StringType>::Print(prefix_, os);
|
|
}
|
|
|
|
private:
|
|
const StringType prefix_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(StartsWithMatcher);
|
|
};
|
|
|
|
// Implements the polymorphic EndsWith(substring) matcher, which
|
|
// can be used as a Matcher<T> as long as T can be converted to a
|
|
// string.
|
|
template <typename StringType>
|
|
class EndsWithMatcher {
|
|
public:
|
|
typedef typename StringType::const_pointer ConstCharPointer;
|
|
|
|
explicit EndsWithMatcher(const StringType& suffix) : suffix_(suffix) {}
|
|
|
|
// These overloaded methods allow EndsWith(suffix) to be used as a
|
|
// Matcher<T> as long as T can be converted to string. Returns true
|
|
// iff s ends with suffix_.
|
|
bool MatchAndExplain(ConstCharPointer s,
|
|
MatchResultListener* listener) const {
|
|
return s != NULL && MatchAndExplain(StringType(s), listener);
|
|
}
|
|
|
|
bool MatchAndExplain(const StringType& s,
|
|
MatchResultListener* /* listener */) const {
|
|
return s.length() >= suffix_.length() &&
|
|
s.substr(s.length() - suffix_.length()) == suffix_;
|
|
}
|
|
|
|
void DescribeTo(::std::ostream* os) const {
|
|
*os << "ends with ";
|
|
UniversalPrinter<StringType>::Print(suffix_, os);
|
|
}
|
|
|
|
void DescribeNegationTo(::std::ostream* os) const {
|
|
*os << "doesn't end with ";
|
|
UniversalPrinter<StringType>::Print(suffix_, os);
|
|
}
|
|
|
|
private:
|
|
const StringType suffix_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(EndsWithMatcher);
|
|
};
|
|
|
|
// Implements polymorphic matchers MatchesRegex(regex) and
|
|
// ContainsRegex(regex), which can be used as a Matcher<T> as long as
|
|
// T can be converted to a string.
|
|
class MatchesRegexMatcher {
|
|
public:
|
|
MatchesRegexMatcher(const RE* regex, bool full_match)
|
|
: regex_(regex), full_match_(full_match) {}
|
|
|
|
// These overloaded methods allow MatchesRegex(regex) to be used as
|
|
// a Matcher<T> as long as T can be converted to string. Returns
|
|
// true iff s matches regular expression regex. When full_match_ is
|
|
// true, a full match is done; otherwise a partial match is done.
|
|
bool MatchAndExplain(const char* s,
|
|
MatchResultListener* listener) const {
|
|
return s != NULL && MatchAndExplain(internal::string(s), listener);
|
|
}
|
|
|
|
bool MatchAndExplain(const internal::string& s,
|
|
MatchResultListener* /* listener */) const {
|
|
return full_match_ ? RE::FullMatch(s, *regex_) :
|
|
RE::PartialMatch(s, *regex_);
|
|
}
|
|
|
|
void DescribeTo(::std::ostream* os) const {
|
|
*os << (full_match_ ? "matches" : "contains")
|
|
<< " regular expression ";
|
|
UniversalPrinter<internal::string>::Print(regex_->pattern(), os);
|
|
}
|
|
|
|
void DescribeNegationTo(::std::ostream* os) const {
|
|
*os << "doesn't " << (full_match_ ? "match" : "contain")
|
|
<< " regular expression ";
|
|
UniversalPrinter<internal::string>::Print(regex_->pattern(), os);
|
|
}
|
|
|
|
private:
|
|
const internal::linked_ptr<const RE> regex_;
|
|
const bool full_match_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(MatchesRegexMatcher);
|
|
};
|
|
|
|
// Implements a matcher that compares the two fields of a 2-tuple
|
|
// using one of the ==, <=, <, etc, operators. The two fields being
|
|
// compared don't have to have the same type.
|
|
//
|
|
// The matcher defined here is polymorphic (for example, Eq() can be
|
|
// used to match a tuple<int, short>, a tuple<const long&, double>,
|
|
// etc). Therefore we use a template type conversion operator in the
|
|
// implementation.
|
|
//
|
|
// We define this as a macro in order to eliminate duplicated source
|
|
// code.
|
|
#define GMOCK_IMPLEMENT_COMPARISON2_MATCHER_(name, op) \
|
|
class name##2Matcher { \
|
|
public: \
|
|
template <typename T1, typename T2> \
|
|
operator Matcher<const ::std::tr1::tuple<T1, T2>&>() const { \
|
|
return MakeMatcher(new Impl<T1, T2>); \
|
|
} \
|
|
private: \
|
|
template <typename T1, typename T2> \
|
|
class Impl : public MatcherInterface<const ::std::tr1::tuple<T1, T2>&> { \
|
|
public: \
|
|
virtual bool MatchAndExplain( \
|
|
const ::std::tr1::tuple<T1, T2>& args, \
|
|
MatchResultListener* /* listener */) const { \
|
|
return ::std::tr1::get<0>(args) op ::std::tr1::get<1>(args); \
|
|
} \
|
|
virtual void DescribeTo(::std::ostream* os) const { \
|
|
*os << "are a pair (x, y) where x " #op " y"; \
|
|
} \
|
|
virtual void DescribeNegationTo(::std::ostream* os) const { \
|
|
*os << "are a pair (x, y) where x " #op " y is false"; \
|
|
} \
|
|
}; \
|
|
}
|
|
|
|
// Implements Eq(), Ge(), Gt(), Le(), Lt(), and Ne() respectively.
|
|
GMOCK_IMPLEMENT_COMPARISON2_MATCHER_(Eq, ==);
|
|
GMOCK_IMPLEMENT_COMPARISON2_MATCHER_(Ge, >=);
|
|
GMOCK_IMPLEMENT_COMPARISON2_MATCHER_(Gt, >);
|
|
GMOCK_IMPLEMENT_COMPARISON2_MATCHER_(Le, <=);
|
|
GMOCK_IMPLEMENT_COMPARISON2_MATCHER_(Lt, <);
|
|
GMOCK_IMPLEMENT_COMPARISON2_MATCHER_(Ne, !=);
|
|
|
|
#undef GMOCK_IMPLEMENT_COMPARISON2_MATCHER_
|
|
|
|
// Implements the Not(...) matcher for a particular argument type T.
|
|
// We do not nest it inside the NotMatcher class template, as that
|
|
// will prevent different instantiations of NotMatcher from sharing
|
|
// the same NotMatcherImpl<T> class.
|
|
template <typename T>
|
|
class NotMatcherImpl : public MatcherInterface<T> {
|
|
public:
|
|
explicit NotMatcherImpl(const Matcher<T>& matcher)
|
|
: matcher_(matcher) {}
|
|
|
|
virtual bool MatchAndExplain(T x, MatchResultListener* listener) const {
|
|
return !matcher_.MatchAndExplain(x, listener);
|
|
}
|
|
|
|
virtual void DescribeTo(::std::ostream* os) const {
|
|
matcher_.DescribeNegationTo(os);
|
|
}
|
|
|
|
virtual void DescribeNegationTo(::std::ostream* os) const {
|
|
matcher_.DescribeTo(os);
|
|
}
|
|
|
|
private:
|
|
const Matcher<T> matcher_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(NotMatcherImpl);
|
|
};
|
|
|
|
// Implements the Not(m) matcher, which matches a value that doesn't
|
|
// match matcher m.
|
|
template <typename InnerMatcher>
|
|
class NotMatcher {
|
|
public:
|
|
explicit NotMatcher(InnerMatcher matcher) : matcher_(matcher) {}
|
|
|
|
// This template type conversion operator allows Not(m) to be used
|
|
// to match any type m can match.
|
|
template <typename T>
|
|
operator Matcher<T>() const {
|
|
return Matcher<T>(new NotMatcherImpl<T>(SafeMatcherCast<T>(matcher_)));
|
|
}
|
|
|
|
private:
|
|
InnerMatcher matcher_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(NotMatcher);
|
|
};
|
|
|
|
// Implements the AllOf(m1, m2) matcher for a particular argument type
|
|
// T. We do not nest it inside the BothOfMatcher class template, as
|
|
// that will prevent different instantiations of BothOfMatcher from
|
|
// sharing the same BothOfMatcherImpl<T> class.
|
|
template <typename T>
|
|
class BothOfMatcherImpl : public MatcherInterface<T> {
|
|
public:
|
|
BothOfMatcherImpl(const Matcher<T>& matcher1, const Matcher<T>& matcher2)
|
|
: matcher1_(matcher1), matcher2_(matcher2) {}
|
|
|
|
virtual void DescribeTo(::std::ostream* os) const {
|
|
*os << "(";
|
|
matcher1_.DescribeTo(os);
|
|
*os << ") and (";
|
|
matcher2_.DescribeTo(os);
|
|
*os << ")";
|
|
}
|
|
|
|
virtual void DescribeNegationTo(::std::ostream* os) const {
|
|
*os << "not ";
|
|
DescribeTo(os);
|
|
}
|
|
|
|
virtual bool MatchAndExplain(T x, MatchResultListener* listener) const {
|
|
// If either matcher1_ or matcher2_ doesn't match x, we only need
|
|
// to explain why one of them fails.
|
|
StringMatchResultListener listener1;
|
|
if (!matcher1_.MatchAndExplain(x, &listener1)) {
|
|
*listener << listener1.str();
|
|
return false;
|
|
}
|
|
|
|
StringMatchResultListener listener2;
|
|
if (!matcher2_.MatchAndExplain(x, &listener2)) {
|
|
*listener << listener2.str();
|
|
return false;
|
|
}
|
|
|
|
// Otherwise we need to explain why *both* of them match.
|
|
const internal::string s1 = listener1.str();
|
|
const internal::string s2 = listener2.str();
|
|
|
|
if (s1 == "") {
|
|
*listener << s2;
|
|
} else {
|
|
*listener << s1;
|
|
if (s2 != "") {
|
|
*listener << "; " << s2;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
private:
|
|
const Matcher<T> matcher1_;
|
|
const Matcher<T> matcher2_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(BothOfMatcherImpl);
|
|
};
|
|
|
|
// Used for implementing the AllOf(m_1, ..., m_n) matcher, which
|
|
// matches a value that matches all of the matchers m_1, ..., and m_n.
|
|
template <typename Matcher1, typename Matcher2>
|
|
class BothOfMatcher {
|
|
public:
|
|
BothOfMatcher(Matcher1 matcher1, Matcher2 matcher2)
|
|
: matcher1_(matcher1), matcher2_(matcher2) {}
|
|
|
|
// This template type conversion operator allows a
|
|
// BothOfMatcher<Matcher1, Matcher2> object to match any type that
|
|
// both Matcher1 and Matcher2 can match.
|
|
template <typename T>
|
|
operator Matcher<T>() const {
|
|
return Matcher<T>(new BothOfMatcherImpl<T>(SafeMatcherCast<T>(matcher1_),
|
|
SafeMatcherCast<T>(matcher2_)));
|
|
}
|
|
|
|
private:
|
|
Matcher1 matcher1_;
|
|
Matcher2 matcher2_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(BothOfMatcher);
|
|
};
|
|
|
|
// Implements the AnyOf(m1, m2) matcher for a particular argument type
|
|
// T. We do not nest it inside the AnyOfMatcher class template, as
|
|
// that will prevent different instantiations of AnyOfMatcher from
|
|
// sharing the same EitherOfMatcherImpl<T> class.
|
|
template <typename T>
|
|
class EitherOfMatcherImpl : public MatcherInterface<T> {
|
|
public:
|
|
EitherOfMatcherImpl(const Matcher<T>& matcher1, const Matcher<T>& matcher2)
|
|
: matcher1_(matcher1), matcher2_(matcher2) {}
|
|
|
|
virtual void DescribeTo(::std::ostream* os) const {
|
|
*os << "(";
|
|
matcher1_.DescribeTo(os);
|
|
*os << ") or (";
|
|
matcher2_.DescribeTo(os);
|
|
*os << ")";
|
|
}
|
|
|
|
virtual void DescribeNegationTo(::std::ostream* os) const {
|
|
*os << "not ";
|
|
DescribeTo(os);
|
|
}
|
|
|
|
virtual bool MatchAndExplain(T x, MatchResultListener* listener) const {
|
|
// If either matcher1_ or matcher2_ matches x, we just need to
|
|
// explain why *one* of them matches.
|
|
StringMatchResultListener listener1;
|
|
if (matcher1_.MatchAndExplain(x, &listener1)) {
|
|
*listener << listener1.str();
|
|
return true;
|
|
}
|
|
|
|
StringMatchResultListener listener2;
|
|
if (matcher2_.MatchAndExplain(x, &listener2)) {
|
|
*listener << listener2.str();
|
|
return true;
|
|
}
|
|
|
|
// Otherwise we need to explain why *both* of them fail.
|
|
const internal::string s1 = listener1.str();
|
|
const internal::string s2 = listener2.str();
|
|
|
|
if (s1 == "") {
|
|
*listener << s2;
|
|
} else {
|
|
*listener << s1;
|
|
if (s2 != "") {
|
|
*listener << "; " << s2;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
private:
|
|
const Matcher<T> matcher1_;
|
|
const Matcher<T> matcher2_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(EitherOfMatcherImpl);
|
|
};
|
|
|
|
// Used for implementing the AnyOf(m_1, ..., m_n) matcher, which
|
|
// matches a value that matches at least one of the matchers m_1, ...,
|
|
// and m_n.
|
|
template <typename Matcher1, typename Matcher2>
|
|
class EitherOfMatcher {
|
|
public:
|
|
EitherOfMatcher(Matcher1 matcher1, Matcher2 matcher2)
|
|
: matcher1_(matcher1), matcher2_(matcher2) {}
|
|
|
|
// This template type conversion operator allows a
|
|
// EitherOfMatcher<Matcher1, Matcher2> object to match any type that
|
|
// both Matcher1 and Matcher2 can match.
|
|
template <typename T>
|
|
operator Matcher<T>() const {
|
|
return Matcher<T>(new EitherOfMatcherImpl<T>(
|
|
SafeMatcherCast<T>(matcher1_), SafeMatcherCast<T>(matcher2_)));
|
|
}
|
|
|
|
private:
|
|
Matcher1 matcher1_;
|
|
Matcher2 matcher2_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(EitherOfMatcher);
|
|
};
|
|
|
|
// Used for implementing Truly(pred), which turns a predicate into a
|
|
// matcher.
|
|
template <typename Predicate>
|
|
class TrulyMatcher {
|
|
public:
|
|
explicit TrulyMatcher(Predicate pred) : predicate_(pred) {}
|
|
|
|
// This method template allows Truly(pred) to be used as a matcher
|
|
// for type T where T is the argument type of predicate 'pred'. The
|
|
// argument is passed by reference as the predicate may be
|
|
// interested in the address of the argument.
|
|
template <typename T>
|
|
bool MatchAndExplain(T& x, // NOLINT
|
|
MatchResultListener* /* listener */) const {
|
|
#if GTEST_OS_WINDOWS
|
|
// MSVC warns about converting a value into bool (warning 4800).
|
|
#pragma warning(push) // Saves the current warning state.
|
|
#pragma warning(disable:4800) // Temporarily disables warning 4800.
|
|
#endif // GTEST_OS_WINDOWS
|
|
return predicate_(x);
|
|
#if GTEST_OS_WINDOWS
|
|
#pragma warning(pop) // Restores the warning state.
|
|
#endif // GTEST_OS_WINDOWS
|
|
}
|
|
|
|
void DescribeTo(::std::ostream* os) const {
|
|
*os << "satisfies the given predicate";
|
|
}
|
|
|
|
void DescribeNegationTo(::std::ostream* os) const {
|
|
*os << "doesn't satisfy the given predicate";
|
|
}
|
|
|
|
private:
|
|
Predicate predicate_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(TrulyMatcher);
|
|
};
|
|
|
|
// Used for implementing Matches(matcher), which turns a matcher into
|
|
// a predicate.
|
|
template <typename M>
|
|
class MatcherAsPredicate {
|
|
public:
|
|
explicit MatcherAsPredicate(M matcher) : matcher_(matcher) {}
|
|
|
|
// This template operator() allows Matches(m) to be used as a
|
|
// predicate on type T where m is a matcher on type T.
|
|
//
|
|
// The argument x is passed by reference instead of by value, as
|
|
// some matcher may be interested in its address (e.g. as in
|
|
// Matches(Ref(n))(x)).
|
|
template <typename T>
|
|
bool operator()(const T& x) const {
|
|
// We let matcher_ commit to a particular type here instead of
|
|
// when the MatcherAsPredicate object was constructed. This
|
|
// allows us to write Matches(m) where m is a polymorphic matcher
|
|
// (e.g. Eq(5)).
|
|
//
|
|
// If we write Matcher<T>(matcher_).Matches(x) here, it won't
|
|
// compile when matcher_ has type Matcher<const T&>; if we write
|
|
// Matcher<const T&>(matcher_).Matches(x) here, it won't compile
|
|
// when matcher_ has type Matcher<T>; if we just write
|
|
// matcher_.Matches(x), it won't compile when matcher_ is
|
|
// polymorphic, e.g. Eq(5).
|
|
//
|
|
// MatcherCast<const T&>() is necessary for making the code work
|
|
// in all of the above situations.
|
|
return MatcherCast<const T&>(matcher_).Matches(x);
|
|
}
|
|
|
|
private:
|
|
M matcher_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(MatcherAsPredicate);
|
|
};
|
|
|
|
// For implementing ASSERT_THAT() and EXPECT_THAT(). The template
|
|
// argument M must be a type that can be converted to a matcher.
|
|
template <typename M>
|
|
class PredicateFormatterFromMatcher {
|
|
public:
|
|
explicit PredicateFormatterFromMatcher(const M& m) : matcher_(m) {}
|
|
|
|
// This template () operator allows a PredicateFormatterFromMatcher
|
|
// object to act as a predicate-formatter suitable for using with
|
|
// Google Test's EXPECT_PRED_FORMAT1() macro.
|
|
template <typename T>
|
|
AssertionResult operator()(const char* value_text, const T& x) const {
|
|
// We convert matcher_ to a Matcher<const T&> *now* instead of
|
|
// when the PredicateFormatterFromMatcher object was constructed,
|
|
// as matcher_ may be polymorphic (e.g. NotNull()) and we won't
|
|
// know which type to instantiate it to until we actually see the
|
|
// type of x here.
|
|
//
|
|
// We write MatcherCast<const T&>(matcher_) instead of
|
|
// Matcher<const T&>(matcher_), as the latter won't compile when
|
|
// matcher_ has type Matcher<T> (e.g. An<int>()).
|
|
const Matcher<const T&> matcher = MatcherCast<const T&>(matcher_);
|
|
StringMatchResultListener listener;
|
|
if (matcher.MatchAndExplain(x, &listener)) {
|
|
return AssertionSuccess();
|
|
} else {
|
|
::std::stringstream ss;
|
|
ss << "Value of: " << value_text << "\n"
|
|
<< "Expected: ";
|
|
matcher.DescribeTo(&ss);
|
|
ss << "\n Actual: ";
|
|
UniversalPrinter<T>::Print(x, &ss);
|
|
StreamInParensAsNeeded(listener.str(), &ss);
|
|
return AssertionFailure(Message() << ss.str());
|
|
}
|
|
}
|
|
|
|
private:
|
|
const M matcher_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(PredicateFormatterFromMatcher);
|
|
};
|
|
|
|
// A helper function for converting a matcher to a predicate-formatter
|
|
// without the user needing to explicitly write the type. This is
|
|
// used for implementing ASSERT_THAT() and EXPECT_THAT().
|
|
template <typename M>
|
|
inline PredicateFormatterFromMatcher<M>
|
|
MakePredicateFormatterFromMatcher(const M& matcher) {
|
|
return PredicateFormatterFromMatcher<M>(matcher);
|
|
}
|
|
|
|
// Implements the polymorphic floating point equality matcher, which
|
|
// matches two float values using ULP-based approximation. The
|
|
// template is meant to be instantiated with FloatType being either
|
|
// float or double.
|
|
template <typename FloatType>
|
|
class FloatingEqMatcher {
|
|
public:
|
|
// Constructor for FloatingEqMatcher.
|
|
// The matcher's input will be compared with rhs. The matcher treats two
|
|
// NANs as equal if nan_eq_nan is true. Otherwise, under IEEE standards,
|
|
// equality comparisons between NANs will always return false.
|
|
FloatingEqMatcher(FloatType rhs, bool nan_eq_nan) :
|
|
rhs_(rhs), nan_eq_nan_(nan_eq_nan) {}
|
|
|
|
// Implements floating point equality matcher as a Matcher<T>.
|
|
template <typename T>
|
|
class Impl : public MatcherInterface<T> {
|
|
public:
|
|
Impl(FloatType rhs, bool nan_eq_nan) :
|
|
rhs_(rhs), nan_eq_nan_(nan_eq_nan) {}
|
|
|
|
virtual bool MatchAndExplain(T value,
|
|
MatchResultListener* /* listener */) const {
|
|
const FloatingPoint<FloatType> lhs(value), rhs(rhs_);
|
|
|
|
// Compares NaNs first, if nan_eq_nan_ is true.
|
|
if (nan_eq_nan_ && lhs.is_nan()) {
|
|
return rhs.is_nan();
|
|
}
|
|
|
|
return lhs.AlmostEquals(rhs);
|
|
}
|
|
|
|
virtual void DescribeTo(::std::ostream* os) const {
|
|
// os->precision() returns the previously set precision, which we
|
|
// store to restore the ostream to its original configuration
|
|
// after outputting.
|
|
const ::std::streamsize old_precision = os->precision(
|
|
::std::numeric_limits<FloatType>::digits10 + 2);
|
|
if (FloatingPoint<FloatType>(rhs_).is_nan()) {
|
|
if (nan_eq_nan_) {
|
|
*os << "is NaN";
|
|
} else {
|
|
*os << "never matches";
|
|
}
|
|
} else {
|
|
*os << "is approximately " << rhs_;
|
|
}
|
|
os->precision(old_precision);
|
|
}
|
|
|
|
virtual void DescribeNegationTo(::std::ostream* os) const {
|
|
// As before, get original precision.
|
|
const ::std::streamsize old_precision = os->precision(
|
|
::std::numeric_limits<FloatType>::digits10 + 2);
|
|
if (FloatingPoint<FloatType>(rhs_).is_nan()) {
|
|
if (nan_eq_nan_) {
|
|
*os << "is not NaN";
|
|
} else {
|
|
*os << "is anything";
|
|
}
|
|
} else {
|
|
*os << "is not approximately " << rhs_;
|
|
}
|
|
// Restore original precision.
|
|
os->precision(old_precision);
|
|
}
|
|
|
|
private:
|
|
const FloatType rhs_;
|
|
const bool nan_eq_nan_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(Impl);
|
|
};
|
|
|
|
// The following 3 type conversion operators allow FloatEq(rhs) and
|
|
// NanSensitiveFloatEq(rhs) to be used as a Matcher<float>, a
|
|
// Matcher<const float&>, or a Matcher<float&>, but nothing else.
|
|
// (While Google's C++ coding style doesn't allow arguments passed
|
|
// by non-const reference, we may see them in code not conforming to
|
|
// the style. Therefore Google Mock needs to support them.)
|
|
operator Matcher<FloatType>() const {
|
|
return MakeMatcher(new Impl<FloatType>(rhs_, nan_eq_nan_));
|
|
}
|
|
|
|
operator Matcher<const FloatType&>() const {
|
|
return MakeMatcher(new Impl<const FloatType&>(rhs_, nan_eq_nan_));
|
|
}
|
|
|
|
operator Matcher<FloatType&>() const {
|
|
return MakeMatcher(new Impl<FloatType&>(rhs_, nan_eq_nan_));
|
|
}
|
|
private:
|
|
const FloatType rhs_;
|
|
const bool nan_eq_nan_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(FloatingEqMatcher);
|
|
};
|
|
|
|
// Implements the Pointee(m) matcher for matching a pointer whose
|
|
// pointee matches matcher m. The pointer can be either raw or smart.
|
|
template <typename InnerMatcher>
|
|
class PointeeMatcher {
|
|
public:
|
|
explicit PointeeMatcher(const InnerMatcher& matcher) : matcher_(matcher) {}
|
|
|
|
// This type conversion operator template allows Pointee(m) to be
|
|
// used as a matcher for any pointer type whose pointee type is
|
|
// compatible with the inner matcher, where type Pointer can be
|
|
// either a raw pointer or a smart pointer.
|
|
//
|
|
// The reason we do this instead of relying on
|
|
// MakePolymorphicMatcher() is that the latter is not flexible
|
|
// enough for implementing the DescribeTo() method of Pointee().
|
|
template <typename Pointer>
|
|
operator Matcher<Pointer>() const {
|
|
return MakeMatcher(new Impl<Pointer>(matcher_));
|
|
}
|
|
|
|
private:
|
|
// The monomorphic implementation that works for a particular pointer type.
|
|
template <typename Pointer>
|
|
class Impl : public MatcherInterface<Pointer> {
|
|
public:
|
|
typedef typename PointeeOf<GMOCK_REMOVE_CONST_( // NOLINT
|
|
GMOCK_REMOVE_REFERENCE_(Pointer))>::type Pointee;
|
|
|
|
explicit Impl(const InnerMatcher& matcher)
|
|
: matcher_(MatcherCast<const Pointee&>(matcher)) {}
|
|
|
|
virtual void DescribeTo(::std::ostream* os) const {
|
|
*os << "points to a value that ";
|
|
matcher_.DescribeTo(os);
|
|
}
|
|
|
|
virtual void DescribeNegationTo(::std::ostream* os) const {
|
|
*os << "does not point to a value that ";
|
|
matcher_.DescribeTo(os);
|
|
}
|
|
|
|
virtual bool MatchAndExplain(Pointer pointer,
|
|
MatchResultListener* listener) const {
|
|
if (GetRawPointer(pointer) == NULL)
|
|
return false;
|
|
|
|
StringMatchResultListener inner_listener;
|
|
const bool match = matcher_.MatchAndExplain(*pointer, &inner_listener);
|
|
const internal::string s = inner_listener.str();
|
|
if (s != "") {
|
|
*listener << "points to a value that " << s;
|
|
}
|
|
return match;
|
|
}
|
|
|
|
private:
|
|
const Matcher<const Pointee&> matcher_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(Impl);
|
|
};
|
|
|
|
const InnerMatcher matcher_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(PointeeMatcher);
|
|
};
|
|
|
|
// Implements the Field() matcher for matching a field (i.e. member
|
|
// variable) of an object.
|
|
template <typename Class, typename FieldType>
|
|
class FieldMatcher {
|
|
public:
|
|
FieldMatcher(FieldType Class::*field,
|
|
const Matcher<const FieldType&>& matcher)
|
|
: field_(field), matcher_(matcher) {}
|
|
|
|
void DescribeTo(::std::ostream* os) const {
|
|
*os << "the given field ";
|
|
matcher_.DescribeTo(os);
|
|
}
|
|
|
|
void DescribeNegationTo(::std::ostream* os) const {
|
|
*os << "the given field ";
|
|
matcher_.DescribeNegationTo(os);
|
|
}
|
|
|
|
template <typename T>
|
|
bool MatchAndExplain(const T& value, MatchResultListener* listener) const {
|
|
return MatchAndExplainImpl(
|
|
typename ::testing::internal::
|
|
is_pointer<GMOCK_REMOVE_CONST_(T)>::type(),
|
|
value, listener);
|
|
}
|
|
|
|
private:
|
|
// The first argument of MatchAndExplainImpl() is needed to help
|
|
// Symbian's C++ compiler choose which overload to use. Its type is
|
|
// true_type iff the Field() matcher is used to match a pointer.
|
|
bool MatchAndExplainImpl(false_type /* is_not_pointer */, const Class& obj,
|
|
MatchResultListener* listener) const {
|
|
StringMatchResultListener inner_listener;
|
|
const bool match = matcher_.MatchAndExplain(obj.*field_, &inner_listener);
|
|
const internal::string s = inner_listener.str();
|
|
if (s != "") {
|
|
*listener << "the given field " << s;
|
|
}
|
|
return match;
|
|
}
|
|
|
|
bool MatchAndExplainImpl(true_type /* is_pointer */, const Class* p,
|
|
MatchResultListener* listener) const {
|
|
if (p == NULL)
|
|
return false;
|
|
|
|
// Since *p has a field, it must be a class/struct/union type and
|
|
// thus cannot be a pointer. Therefore we pass false_type() as
|
|
// the first argument.
|
|
return MatchAndExplainImpl(false_type(), *p, listener);
|
|
}
|
|
|
|
const FieldType Class::*field_;
|
|
const Matcher<const FieldType&> matcher_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(FieldMatcher);
|
|
};
|
|
|
|
// Implements the Property() matcher for matching a property
|
|
// (i.e. return value of a getter method) of an object.
|
|
template <typename Class, typename PropertyType>
|
|
class PropertyMatcher {
|
|
public:
|
|
// The property may have a reference type, so 'const PropertyType&'
|
|
// may cause double references and fail to compile. That's why we
|
|
// need GMOCK_REFERENCE_TO_CONST, which works regardless of
|
|
// PropertyType being a reference or not.
|
|
typedef GMOCK_REFERENCE_TO_CONST_(PropertyType) RefToConstProperty;
|
|
|
|
PropertyMatcher(PropertyType (Class::*property)() const,
|
|
const Matcher<RefToConstProperty>& matcher)
|
|
: property_(property), matcher_(matcher) {}
|
|
|
|
void DescribeTo(::std::ostream* os) const {
|
|
*os << "the given property ";
|
|
matcher_.DescribeTo(os);
|
|
}
|
|
|
|
void DescribeNegationTo(::std::ostream* os) const {
|
|
*os << "the given property ";
|
|
matcher_.DescribeNegationTo(os);
|
|
}
|
|
|
|
template <typename T>
|
|
bool MatchAndExplain(const T&value, MatchResultListener* listener) const {
|
|
return MatchAndExplainImpl(
|
|
typename ::testing::internal::
|
|
is_pointer<GMOCK_REMOVE_CONST_(T)>::type(),
|
|
value, listener);
|
|
}
|
|
|
|
private:
|
|
// The first argument of MatchAndExplainImpl() is needed to help
|
|
// Symbian's C++ compiler choose which overload to use. Its type is
|
|
// true_type iff the Property() matcher is used to match a pointer.
|
|
bool MatchAndExplainImpl(false_type /* is_not_pointer */, const Class& obj,
|
|
MatchResultListener* listener) const {
|
|
StringMatchResultListener inner_listener;
|
|
const bool match = matcher_.MatchAndExplain((obj.*property_)(),
|
|
&inner_listener);
|
|
const internal::string s = inner_listener.str();
|
|
if (s != "") {
|
|
*listener << "the given property " << s;
|
|
}
|
|
return match;
|
|
}
|
|
|
|
bool MatchAndExplainImpl(true_type /* is_pointer */, const Class* p,
|
|
MatchResultListener* listener) const {
|
|
if (p == NULL)
|
|
return false;
|
|
|
|
// Since *p has a property method, it must be a class/struct/union
|
|
// type and thus cannot be a pointer. Therefore we pass
|
|
// false_type() as the first argument.
|
|
return MatchAndExplainImpl(false_type(), *p, listener);
|
|
}
|
|
|
|
PropertyType (Class::*property_)() const;
|
|
const Matcher<RefToConstProperty> matcher_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(PropertyMatcher);
|
|
};
|
|
|
|
// Type traits specifying various features of different functors for ResultOf.
|
|
// The default template specifies features for functor objects.
|
|
// Functor classes have to typedef argument_type and result_type
|
|
// to be compatible with ResultOf.
|
|
template <typename Functor>
|
|
struct CallableTraits {
|
|
typedef typename Functor::result_type ResultType;
|
|
typedef Functor StorageType;
|
|
|
|
static void CheckIsValid(Functor /* functor */) {}
|
|
template <typename T>
|
|
static ResultType Invoke(Functor f, T arg) { return f(arg); }
|
|
};
|
|
|
|
// Specialization for function pointers.
|
|
template <typename ArgType, typename ResType>
|
|
struct CallableTraits<ResType(*)(ArgType)> {
|
|
typedef ResType ResultType;
|
|
typedef ResType(*StorageType)(ArgType);
|
|
|
|
static void CheckIsValid(ResType(*f)(ArgType)) {
|
|
GTEST_CHECK_(f != NULL)
|
|
<< "NULL function pointer is passed into ResultOf().";
|
|
}
|
|
template <typename T>
|
|
static ResType Invoke(ResType(*f)(ArgType), T arg) {
|
|
return (*f)(arg);
|
|
}
|
|
};
|
|
|
|
// Implements the ResultOf() matcher for matching a return value of a
|
|
// unary function of an object.
|
|
template <typename Callable>
|
|
class ResultOfMatcher {
|
|
public:
|
|
typedef typename CallableTraits<Callable>::ResultType ResultType;
|
|
|
|
ResultOfMatcher(Callable callable, const Matcher<ResultType>& matcher)
|
|
: callable_(callable), matcher_(matcher) {
|
|
CallableTraits<Callable>::CheckIsValid(callable_);
|
|
}
|
|
|
|
template <typename T>
|
|
operator Matcher<T>() const {
|
|
return Matcher<T>(new Impl<T>(callable_, matcher_));
|
|
}
|
|
|
|
private:
|
|
typedef typename CallableTraits<Callable>::StorageType CallableStorageType;
|
|
|
|
template <typename T>
|
|
class Impl : public MatcherInterface<T> {
|
|
public:
|
|
Impl(CallableStorageType callable, const Matcher<ResultType>& matcher)
|
|
: callable_(callable), matcher_(matcher) {}
|
|
|
|
virtual void DescribeTo(::std::ostream* os) const {
|
|
*os << "result of the given callable ";
|
|
matcher_.DescribeTo(os);
|
|
}
|
|
|
|
virtual void DescribeNegationTo(::std::ostream* os) const {
|
|
*os << "result of the given callable ";
|
|
matcher_.DescribeNegationTo(os);
|
|
}
|
|
|
|
virtual bool MatchAndExplain(T obj, MatchResultListener* listener) const {
|
|
StringMatchResultListener inner_listener;
|
|
const bool match = matcher_.MatchAndExplain(
|
|
CallableTraits<Callable>::template Invoke<T>(callable_, obj),
|
|
&inner_listener);
|
|
|
|
const internal::string s = inner_listener.str();
|
|
if (s != "")
|
|
*listener << "result of the given callable " << s;
|
|
|
|
return match;
|
|
}
|
|
|
|
private:
|
|
// Functors often define operator() as non-const method even though
|
|
// they are actualy stateless. But we need to use them even when
|
|
// 'this' is a const pointer. It's the user's responsibility not to
|
|
// use stateful callables with ResultOf(), which does't guarantee
|
|
// how many times the callable will be invoked.
|
|
mutable CallableStorageType callable_;
|
|
const Matcher<ResultType> matcher_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(Impl);
|
|
}; // class Impl
|
|
|
|
const CallableStorageType callable_;
|
|
const Matcher<ResultType> matcher_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(ResultOfMatcher);
|
|
};
|
|
|
|
// Implements an equality matcher for any STL-style container whose elements
|
|
// support ==. This matcher is like Eq(), but its failure explanations provide
|
|
// more detailed information that is useful when the container is used as a set.
|
|
// The failure message reports elements that are in one of the operands but not
|
|
// the other. The failure messages do not report duplicate or out-of-order
|
|
// elements in the containers (which don't properly matter to sets, but can
|
|
// occur if the containers are vectors or lists, for example).
|
|
//
|
|
// Uses the container's const_iterator, value_type, operator ==,
|
|
// begin(), and end().
|
|
template <typename Container>
|
|
class ContainerEqMatcher {
|
|
public:
|
|
typedef internal::StlContainerView<Container> View;
|
|
typedef typename View::type StlContainer;
|
|
typedef typename View::const_reference StlContainerReference;
|
|
|
|
// We make a copy of rhs in case the elements in it are modified
|
|
// after this matcher is created.
|
|
explicit ContainerEqMatcher(const Container& rhs) : rhs_(View::Copy(rhs)) {
|
|
// Makes sure the user doesn't instantiate this class template
|
|
// with a const or reference type.
|
|
testing::StaticAssertTypeEq<Container,
|
|
GMOCK_REMOVE_CONST_(GMOCK_REMOVE_REFERENCE_(Container))>();
|
|
}
|
|
|
|
void DescribeTo(::std::ostream* os) const {
|
|
*os << "equals ";
|
|
UniversalPrinter<StlContainer>::Print(rhs_, os);
|
|
}
|
|
void DescribeNegationTo(::std::ostream* os) const {
|
|
*os << "does not equal ";
|
|
UniversalPrinter<StlContainer>::Print(rhs_, os);
|
|
}
|
|
|
|
template <typename LhsContainer>
|
|
bool MatchAndExplain(const LhsContainer& lhs,
|
|
MatchResultListener* listener) const {
|
|
// GMOCK_REMOVE_CONST_() is needed to work around an MSVC 8.0 bug
|
|
// that causes LhsContainer to be a const type sometimes.
|
|
typedef internal::StlContainerView<GMOCK_REMOVE_CONST_(LhsContainer)>
|
|
LhsView;
|
|
typedef typename LhsView::type LhsStlContainer;
|
|
StlContainerReference lhs_stl_container = LhsView::ConstReference(lhs);
|
|
if (lhs_stl_container == rhs_)
|
|
return true;
|
|
|
|
::std::ostream* const os = listener->stream();
|
|
if (os != NULL) {
|
|
// Something is different. Check for missing values first.
|
|
bool printed_header = false;
|
|
for (typename LhsStlContainer::const_iterator it =
|
|
lhs_stl_container.begin();
|
|
it != lhs_stl_container.end(); ++it) {
|
|
if (internal::ArrayAwareFind(rhs_.begin(), rhs_.end(), *it) ==
|
|
rhs_.end()) {
|
|
if (printed_header) {
|
|
*os << ", ";
|
|
} else {
|
|
*os << "Only in actual: ";
|
|
printed_header = true;
|
|
}
|
|
UniversalPrinter<typename LhsStlContainer::value_type>::
|
|
Print(*it, os);
|
|
}
|
|
}
|
|
|
|
// Now check for extra values.
|
|
bool printed_header2 = false;
|
|
for (typename StlContainer::const_iterator it = rhs_.begin();
|
|
it != rhs_.end(); ++it) {
|
|
if (internal::ArrayAwareFind(
|
|
lhs_stl_container.begin(), lhs_stl_container.end(), *it) ==
|
|
lhs_stl_container.end()) {
|
|
if (printed_header2) {
|
|
*os << ", ";
|
|
} else {
|
|
*os << (printed_header ? "; not" : "Not") << " in actual: ";
|
|
printed_header2 = true;
|
|
}
|
|
UniversalPrinter<typename StlContainer::value_type>::Print(*it, os);
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
private:
|
|
const StlContainer rhs_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(ContainerEqMatcher);
|
|
};
|
|
|
|
// Implements Contains(element_matcher) for the given argument type Container.
|
|
template <typename Container>
|
|
class ContainsMatcherImpl : public MatcherInterface<Container> {
|
|
public:
|
|
typedef GMOCK_REMOVE_CONST_(GMOCK_REMOVE_REFERENCE_(Container)) RawContainer;
|
|
typedef StlContainerView<RawContainer> View;
|
|
typedef typename View::type StlContainer;
|
|
typedef typename View::const_reference StlContainerReference;
|
|
typedef typename StlContainer::value_type Element;
|
|
|
|
template <typename InnerMatcher>
|
|
explicit ContainsMatcherImpl(InnerMatcher inner_matcher)
|
|
: inner_matcher_(
|
|
testing::SafeMatcherCast<const Element&>(inner_matcher)) {}
|
|
|
|
// Describes what this matcher does.
|
|
virtual void DescribeTo(::std::ostream* os) const {
|
|
*os << "contains at least one element that ";
|
|
inner_matcher_.DescribeTo(os);
|
|
}
|
|
|
|
// Describes what the negation of this matcher does.
|
|
virtual void DescribeNegationTo(::std::ostream* os) const {
|
|
*os << "doesn't contain any element that ";
|
|
inner_matcher_.DescribeTo(os);
|
|
}
|
|
|
|
virtual bool MatchAndExplain(Container container,
|
|
MatchResultListener* listener) const {
|
|
StlContainerReference stl_container = View::ConstReference(container);
|
|
size_t i = 0;
|
|
for (typename StlContainer::const_iterator it = stl_container.begin();
|
|
it != stl_container.end(); ++it, ++i) {
|
|
if (inner_matcher_.Matches(*it)) {
|
|
*listener << "element " << i << " matches";
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
private:
|
|
const Matcher<const Element&> inner_matcher_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(ContainsMatcherImpl);
|
|
};
|
|
|
|
// Implements polymorphic Contains(element_matcher).
|
|
template <typename M>
|
|
class ContainsMatcher {
|
|
public:
|
|
explicit ContainsMatcher(M m) : inner_matcher_(m) {}
|
|
|
|
template <typename Container>
|
|
operator Matcher<Container>() const {
|
|
return MakeMatcher(new ContainsMatcherImpl<Container>(inner_matcher_));
|
|
}
|
|
|
|
private:
|
|
const M inner_matcher_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(ContainsMatcher);
|
|
};
|
|
|
|
// Implements Key(inner_matcher) for the given argument pair type.
|
|
// Key(inner_matcher) matches an std::pair whose 'first' field matches
|
|
// inner_matcher. For example, Contains(Key(Ge(5))) can be used to match an
|
|
// std::map that contains at least one element whose key is >= 5.
|
|
template <typename PairType>
|
|
class KeyMatcherImpl : public MatcherInterface<PairType> {
|
|
public:
|
|
typedef GMOCK_REMOVE_CONST_(GMOCK_REMOVE_REFERENCE_(PairType)) RawPairType;
|
|
typedef typename RawPairType::first_type KeyType;
|
|
|
|
template <typename InnerMatcher>
|
|
explicit KeyMatcherImpl(InnerMatcher inner_matcher)
|
|
: inner_matcher_(
|
|
testing::SafeMatcherCast<const KeyType&>(inner_matcher)) {
|
|
}
|
|
|
|
// Returns true iff 'key_value.first' (the key) matches the inner matcher.
|
|
virtual bool MatchAndExplain(PairType key_value,
|
|
MatchResultListener* listener) const {
|
|
return inner_matcher_.MatchAndExplain(key_value.first, listener);
|
|
}
|
|
|
|
// Describes what this matcher does.
|
|
virtual void DescribeTo(::std::ostream* os) const {
|
|
*os << "has a key that ";
|
|
inner_matcher_.DescribeTo(os);
|
|
}
|
|
|
|
// Describes what the negation of this matcher does.
|
|
virtual void DescribeNegationTo(::std::ostream* os) const {
|
|
*os << "doesn't have a key that ";
|
|
inner_matcher_.DescribeTo(os);
|
|
}
|
|
|
|
private:
|
|
const Matcher<const KeyType&> inner_matcher_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(KeyMatcherImpl);
|
|
};
|
|
|
|
// Implements polymorphic Key(matcher_for_key).
|
|
template <typename M>
|
|
class KeyMatcher {
|
|
public:
|
|
explicit KeyMatcher(M m) : matcher_for_key_(m) {}
|
|
|
|
template <typename PairType>
|
|
operator Matcher<PairType>() const {
|
|
return MakeMatcher(new KeyMatcherImpl<PairType>(matcher_for_key_));
|
|
}
|
|
|
|
private:
|
|
const M matcher_for_key_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(KeyMatcher);
|
|
};
|
|
|
|
// Implements Pair(first_matcher, second_matcher) for the given argument pair
|
|
// type with its two matchers. See Pair() function below.
|
|
template <typename PairType>
|
|
class PairMatcherImpl : public MatcherInterface<PairType> {
|
|
public:
|
|
typedef GMOCK_REMOVE_CONST_(GMOCK_REMOVE_REFERENCE_(PairType)) RawPairType;
|
|
typedef typename RawPairType::first_type FirstType;
|
|
typedef typename RawPairType::second_type SecondType;
|
|
|
|
template <typename FirstMatcher, typename SecondMatcher>
|
|
PairMatcherImpl(FirstMatcher first_matcher, SecondMatcher second_matcher)
|
|
: first_matcher_(
|
|
testing::SafeMatcherCast<const FirstType&>(first_matcher)),
|
|
second_matcher_(
|
|
testing::SafeMatcherCast<const SecondType&>(second_matcher)) {
|
|
}
|
|
|
|
// Describes what this matcher does.
|
|
virtual void DescribeTo(::std::ostream* os) const {
|
|
*os << "has a first field that ";
|
|
first_matcher_.DescribeTo(os);
|
|
*os << ", and has a second field that ";
|
|
second_matcher_.DescribeTo(os);
|
|
}
|
|
|
|
// Describes what the negation of this matcher does.
|
|
virtual void DescribeNegationTo(::std::ostream* os) const {
|
|
*os << "has a first field that ";
|
|
first_matcher_.DescribeNegationTo(os);
|
|
*os << ", or has a second field that ";
|
|
second_matcher_.DescribeNegationTo(os);
|
|
}
|
|
|
|
// Returns true iff 'a_pair.first' matches first_matcher and 'a_pair.second'
|
|
// matches second_matcher.
|
|
virtual bool MatchAndExplain(PairType a_pair,
|
|
MatchResultListener* listener) const {
|
|
StringMatchResultListener listener1;
|
|
const bool match1 = first_matcher_.MatchAndExplain(a_pair.first,
|
|
&listener1);
|
|
internal::string s1 = listener1.str();
|
|
if (s1 != "") {
|
|
s1 = "the first field " + s1;
|
|
}
|
|
if (!match1) {
|
|
*listener << s1;
|
|
return false;
|
|
}
|
|
|
|
StringMatchResultListener listener2;
|
|
const bool match2 = second_matcher_.MatchAndExplain(a_pair.second,
|
|
&listener2);
|
|
internal::string s2 = listener2.str();
|
|
if (s2 != "") {
|
|
s2 = "the second field " + s2;
|
|
}
|
|
if (!match2) {
|
|
*listener << s2;
|
|
return false;
|
|
}
|
|
|
|
*listener << s1;
|
|
if (s1 != "" && s2 != "") {
|
|
*listener << ", and ";
|
|
}
|
|
*listener << s2;
|
|
return true;
|
|
}
|
|
|
|
private:
|
|
const Matcher<const FirstType&> first_matcher_;
|
|
const Matcher<const SecondType&> second_matcher_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(PairMatcherImpl);
|
|
};
|
|
|
|
// Implements polymorphic Pair(first_matcher, second_matcher).
|
|
template <typename FirstMatcher, typename SecondMatcher>
|
|
class PairMatcher {
|
|
public:
|
|
PairMatcher(FirstMatcher first_matcher, SecondMatcher second_matcher)
|
|
: first_matcher_(first_matcher), second_matcher_(second_matcher) {}
|
|
|
|
template <typename PairType>
|
|
operator Matcher<PairType> () const {
|
|
return MakeMatcher(
|
|
new PairMatcherImpl<PairType>(
|
|
first_matcher_, second_matcher_));
|
|
}
|
|
|
|
private:
|
|
const FirstMatcher first_matcher_;
|
|
const SecondMatcher second_matcher_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(PairMatcher);
|
|
};
|
|
|
|
// Implements ElementsAre() and ElementsAreArray().
|
|
template <typename Container>
|
|
class ElementsAreMatcherImpl : public MatcherInterface<Container> {
|
|
public:
|
|
typedef GMOCK_REMOVE_CONST_(GMOCK_REMOVE_REFERENCE_(Container)) RawContainer;
|
|
typedef internal::StlContainerView<RawContainer> View;
|
|
typedef typename View::type StlContainer;
|
|
typedef typename View::const_reference StlContainerReference;
|
|
typedef typename StlContainer::value_type Element;
|
|
|
|
// Constructs the matcher from a sequence of element values or
|
|
// element matchers.
|
|
template <typename InputIter>
|
|
ElementsAreMatcherImpl(InputIter first, size_t a_count) {
|
|
matchers_.reserve(a_count);
|
|
InputIter it = first;
|
|
for (size_t i = 0; i != a_count; ++i, ++it) {
|
|
matchers_.push_back(MatcherCast<const Element&>(*it));
|
|
}
|
|
}
|
|
|
|
// Describes what this matcher does.
|
|
virtual void DescribeTo(::std::ostream* os) const {
|
|
if (count() == 0) {
|
|
*os << "is empty";
|
|
} else if (count() == 1) {
|
|
*os << "has 1 element that ";
|
|
matchers_[0].DescribeTo(os);
|
|
} else {
|
|
*os << "has " << Elements(count()) << " where\n";
|
|
for (size_t i = 0; i != count(); ++i) {
|
|
*os << "element " << i << " ";
|
|
matchers_[i].DescribeTo(os);
|
|
if (i + 1 < count()) {
|
|
*os << ",\n";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Describes what the negation of this matcher does.
|
|
virtual void DescribeNegationTo(::std::ostream* os) const {
|
|
if (count() == 0) {
|
|
*os << "is not empty";
|
|
return;
|
|
}
|
|
|
|
*os << "does not have " << Elements(count()) << ", or\n";
|
|
for (size_t i = 0; i != count(); ++i) {
|
|
*os << "element " << i << " ";
|
|
matchers_[i].DescribeNegationTo(os);
|
|
if (i + 1 < count()) {
|
|
*os << ", or\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
virtual bool MatchAndExplain(Container container,
|
|
MatchResultListener* listener) const {
|
|
StlContainerReference stl_container = View::ConstReference(container);
|
|
const size_t actual_count = stl_container.size();
|
|
if (actual_count != count()) {
|
|
// The element count doesn't match. If the container is empty,
|
|
// there's no need to explain anything as Google Mock already
|
|
// prints the empty container. Otherwise we just need to show
|
|
// how many elements there actually are.
|
|
if (actual_count != 0) {
|
|
*listener << "has " << Elements(actual_count);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
typename StlContainer::const_iterator it = stl_container.begin();
|
|
// explanations[i] is the explanation of the element at index i.
|
|
std::vector<internal::string> explanations(count());
|
|
for (size_t i = 0; i != count(); ++it, ++i) {
|
|
StringMatchResultListener s;
|
|
if (matchers_[i].MatchAndExplain(*it, &s)) {
|
|
explanations[i] = s.str();
|
|
} else {
|
|
// The container has the right size but the i-th element
|
|
// doesn't match its expectation.
|
|
*listener << "element " << i << " doesn't match";
|
|
|
|
StreamInParensAsNeeded(s.str(), listener->stream());
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Every element matches its expectation. We need to explain why
|
|
// (the obvious ones can be skipped).
|
|
|
|
bool reason_printed = false;
|
|
for (size_t i = 0; i != count(); ++i) {
|
|
const internal::string& s = explanations[i];
|
|
if (!s.empty()) {
|
|
if (reason_printed) {
|
|
*listener << ",\n";
|
|
}
|
|
*listener << "element " << i << " " << s;
|
|
reason_printed = true;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
private:
|
|
static Message Elements(size_t count) {
|
|
return Message() << count << (count == 1 ? " element" : " elements");
|
|
}
|
|
|
|
size_t count() const { return matchers_.size(); }
|
|
std::vector<Matcher<const Element&> > matchers_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(ElementsAreMatcherImpl);
|
|
};
|
|
|
|
// Implements ElementsAre() of 0 arguments.
|
|
class ElementsAreMatcher0 {
|
|
public:
|
|
ElementsAreMatcher0() {}
|
|
|
|
template <typename Container>
|
|
operator Matcher<Container>() const {
|
|
typedef GMOCK_REMOVE_CONST_(GMOCK_REMOVE_REFERENCE_(Container))
|
|
RawContainer;
|
|
typedef typename internal::StlContainerView<RawContainer>::type::value_type
|
|
Element;
|
|
|
|
const Matcher<const Element&>* const matchers = NULL;
|
|
return MakeMatcher(new ElementsAreMatcherImpl<Container>(matchers, 0));
|
|
}
|
|
};
|
|
|
|
// Implements ElementsAreArray().
|
|
template <typename T>
|
|
class ElementsAreArrayMatcher {
|
|
public:
|
|
ElementsAreArrayMatcher(const T* first, size_t count) :
|
|
first_(first), count_(count) {}
|
|
|
|
template <typename Container>
|
|
operator Matcher<Container>() const {
|
|
typedef GMOCK_REMOVE_CONST_(GMOCK_REMOVE_REFERENCE_(Container))
|
|
RawContainer;
|
|
typedef typename internal::StlContainerView<RawContainer>::type::value_type
|
|
Element;
|
|
|
|
return MakeMatcher(new ElementsAreMatcherImpl<Container>(first_, count_));
|
|
}
|
|
|
|
private:
|
|
const T* const first_;
|
|
const size_t count_;
|
|
|
|
GTEST_DISALLOW_ASSIGN_(ElementsAreArrayMatcher);
|
|
};
|
|
|
|
// Constants denoting interpolations in a matcher description string.
|
|
const int kTupleInterpolation = -1; // "%(*)s"
|
|
const int kPercentInterpolation = -2; // "%%"
|
|
const int kInvalidInterpolation = -3; // "%" followed by invalid text
|
|
|
|
// Records the location and content of an interpolation.
|
|
struct Interpolation {
|
|
Interpolation(const char* start, const char* end, int param)
|
|
: start_pos(start), end_pos(end), param_index(param) {}
|
|
|
|
// Points to the start of the interpolation (the '%' character).
|
|
const char* start_pos;
|
|
// Points to the first character after the interpolation.
|
|
const char* end_pos;
|
|
// 0-based index of the interpolated matcher parameter;
|
|
// kTupleInterpolation for "%(*)s"; kPercentInterpolation for "%%".
|
|
int param_index;
|
|
};
|
|
|
|
typedef ::std::vector<Interpolation> Interpolations;
|
|
|
|
// Parses a matcher description string and returns a vector of
|
|
// interpolations that appear in the string; generates non-fatal
|
|
// failures iff 'description' is an invalid matcher description.
|
|
// 'param_names' is a NULL-terminated array of parameter names in the
|
|
// order they appear in the MATCHER_P*() parameter list.
|
|
Interpolations ValidateMatcherDescription(
|
|
const char* param_names[], const char* description);
|
|
|
|
// Returns the actual matcher description, given the matcher name,
|
|
// user-supplied description template string, interpolations in the
|
|
// string, and the printed values of the matcher parameters.
|
|
string FormatMatcherDescription(
|
|
const char* matcher_name, const char* description,
|
|
const Interpolations& interp, const Strings& param_values);
|
|
|
|
} // namespace internal
|
|
|
|
// Implements MatcherCast().
|
|
template <typename T, typename M>
|
|
inline Matcher<T> MatcherCast(M matcher) {
|
|
return internal::MatcherCastImpl<T, M>::Cast(matcher);
|
|
}
|
|
|
|
// _ is a matcher that matches anything of any type.
|
|
//
|
|
// This definition is fine as:
|
|
//
|
|
// 1. The C++ standard permits using the name _ in a namespace that
|
|
// is not the global namespace or ::std.
|
|
// 2. The AnythingMatcher class has no data member or constructor,
|
|
// so it's OK to create global variables of this type.
|
|
// 3. c-style has approved of using _ in this case.
|
|
const internal::AnythingMatcher _ = {};
|
|
// Creates a matcher that matches any value of the given type T.
|
|
template <typename T>
|
|
inline Matcher<T> A() { return MakeMatcher(new internal::AnyMatcherImpl<T>()); }
|
|
|
|
// Creates a matcher that matches any value of the given type T.
|
|
template <typename T>
|
|
inline Matcher<T> An() { return A<T>(); }
|
|
|
|
// Creates a polymorphic matcher that matches anything equal to x.
|
|
// Note: if the parameter of Eq() were declared as const T&, Eq("foo")
|
|
// wouldn't compile.
|
|
template <typename T>
|
|
inline internal::EqMatcher<T> Eq(T x) { return internal::EqMatcher<T>(x); }
|
|
|
|
// Constructs a Matcher<T> from a 'value' of type T. The constructed
|
|
// matcher matches any value that's equal to 'value'.
|
|
template <typename T>
|
|
Matcher<T>::Matcher(T value) { *this = Eq(value); }
|
|
|
|
// Creates a monomorphic matcher that matches anything with type Lhs
|
|
// and equal to rhs. A user may need to use this instead of Eq(...)
|
|
// in order to resolve an overloading ambiguity.
|
|
//
|
|
// TypedEq<T>(x) is just a convenient short-hand for Matcher<T>(Eq(x))
|
|
// or Matcher<T>(x), but more readable than the latter.
|
|
//
|
|
// We could define similar monomorphic matchers for other comparison
|
|
// operations (e.g. TypedLt, TypedGe, and etc), but decided not to do
|
|
// it yet as those are used much less than Eq() in practice. A user
|
|
// can always write Matcher<T>(Lt(5)) to be explicit about the type,
|
|
// for example.
|
|
template <typename Lhs, typename Rhs>
|
|
inline Matcher<Lhs> TypedEq(const Rhs& rhs) { return Eq(rhs); }
|
|
|
|
// Creates a polymorphic matcher that matches anything >= x.
|
|
template <typename Rhs>
|
|
inline internal::GeMatcher<Rhs> Ge(Rhs x) {
|
|
return internal::GeMatcher<Rhs>(x);
|
|
}
|
|
|
|
// Creates a polymorphic matcher that matches anything > x.
|
|
template <typename Rhs>
|
|
inline internal::GtMatcher<Rhs> Gt(Rhs x) {
|
|
return internal::GtMatcher<Rhs>(x);
|
|
}
|
|
|
|
// Creates a polymorphic matcher that matches anything <= x.
|
|
template <typename Rhs>
|
|
inline internal::LeMatcher<Rhs> Le(Rhs x) {
|
|
return internal::LeMatcher<Rhs>(x);
|
|
}
|
|
|
|
// Creates a polymorphic matcher that matches anything < x.
|
|
template <typename Rhs>
|
|
inline internal::LtMatcher<Rhs> Lt(Rhs x) {
|
|
return internal::LtMatcher<Rhs>(x);
|
|
}
|
|
|
|
// Creates a polymorphic matcher that matches anything != x.
|
|
template <typename Rhs>
|
|
inline internal::NeMatcher<Rhs> Ne(Rhs x) {
|
|
return internal::NeMatcher<Rhs>(x);
|
|
}
|
|
|
|
// Creates a polymorphic matcher that matches any NULL pointer.
|
|
inline PolymorphicMatcher<internal::IsNullMatcher > IsNull() {
|
|
return MakePolymorphicMatcher(internal::IsNullMatcher());
|
|
}
|
|
|
|
// Creates a polymorphic matcher that matches any non-NULL pointer.
|
|
// This is convenient as Not(NULL) doesn't compile (the compiler
|
|
// thinks that that expression is comparing a pointer with an integer).
|
|
inline PolymorphicMatcher<internal::NotNullMatcher > NotNull() {
|
|
return MakePolymorphicMatcher(internal::NotNullMatcher());
|
|
}
|
|
|
|
// Creates a polymorphic matcher that matches any argument that
|
|
// references variable x.
|
|
template <typename T>
|
|
inline internal::RefMatcher<T&> Ref(T& x) { // NOLINT
|
|
return internal::RefMatcher<T&>(x);
|
|
}
|
|
|
|
// Creates a matcher that matches any double argument approximately
|
|
// equal to rhs, where two NANs are considered unequal.
|
|
inline internal::FloatingEqMatcher<double> DoubleEq(double rhs) {
|
|
return internal::FloatingEqMatcher<double>(rhs, false);
|
|
}
|
|
|
|
// Creates a matcher that matches any double argument approximately
|
|
// equal to rhs, including NaN values when rhs is NaN.
|
|
inline internal::FloatingEqMatcher<double> NanSensitiveDoubleEq(double rhs) {
|
|
return internal::FloatingEqMatcher<double>(rhs, true);
|
|
}
|
|
|
|
// Creates a matcher that matches any float argument approximately
|
|
// equal to rhs, where two NANs are considered unequal.
|
|
inline internal::FloatingEqMatcher<float> FloatEq(float rhs) {
|
|
return internal::FloatingEqMatcher<float>(rhs, false);
|
|
}
|
|
|
|
// Creates a matcher that matches any double argument approximately
|
|
// equal to rhs, including NaN values when rhs is NaN.
|
|
inline internal::FloatingEqMatcher<float> NanSensitiveFloatEq(float rhs) {
|
|
return internal::FloatingEqMatcher<float>(rhs, true);
|
|
}
|
|
|
|
// Creates a matcher that matches a pointer (raw or smart) that points
|
|
// to a value that matches inner_matcher.
|
|
template <typename InnerMatcher>
|
|
inline internal::PointeeMatcher<InnerMatcher> Pointee(
|
|
const InnerMatcher& inner_matcher) {
|
|
return internal::PointeeMatcher<InnerMatcher>(inner_matcher);
|
|
}
|
|
|
|
// Creates a matcher that matches an object whose given field matches
|
|
// 'matcher'. For example,
|
|
// Field(&Foo::number, Ge(5))
|
|
// matches a Foo object x iff x.number >= 5.
|
|
template <typename Class, typename FieldType, typename FieldMatcher>
|
|
inline PolymorphicMatcher<
|
|
internal::FieldMatcher<Class, FieldType> > Field(
|
|
FieldType Class::*field, const FieldMatcher& matcher) {
|
|
return MakePolymorphicMatcher(
|
|
internal::FieldMatcher<Class, FieldType>(
|
|
field, MatcherCast<const FieldType&>(matcher)));
|
|
// The call to MatcherCast() is required for supporting inner
|
|
// matchers of compatible types. For example, it allows
|
|
// Field(&Foo::bar, m)
|
|
// to compile where bar is an int32 and m is a matcher for int64.
|
|
}
|
|
|
|
// Creates a matcher that matches an object whose given property
|
|
// matches 'matcher'. For example,
|
|
// Property(&Foo::str, StartsWith("hi"))
|
|
// matches a Foo object x iff x.str() starts with "hi".
|
|
template <typename Class, typename PropertyType, typename PropertyMatcher>
|
|
inline PolymorphicMatcher<
|
|
internal::PropertyMatcher<Class, PropertyType> > Property(
|
|
PropertyType (Class::*property)() const, const PropertyMatcher& matcher) {
|
|
return MakePolymorphicMatcher(
|
|
internal::PropertyMatcher<Class, PropertyType>(
|
|
property,
|
|
MatcherCast<GMOCK_REFERENCE_TO_CONST_(PropertyType)>(matcher)));
|
|
// The call to MatcherCast() is required for supporting inner
|
|
// matchers of compatible types. For example, it allows
|
|
// Property(&Foo::bar, m)
|
|
// to compile where bar() returns an int32 and m is a matcher for int64.
|
|
}
|
|
|
|
// Creates a matcher that matches an object iff the result of applying
|
|
// a callable to x matches 'matcher'.
|
|
// For example,
|
|
// ResultOf(f, StartsWith("hi"))
|
|
// matches a Foo object x iff f(x) starts with "hi".
|
|
// callable parameter can be a function, function pointer, or a functor.
|
|
// Callable has to satisfy the following conditions:
|
|
// * It is required to keep no state affecting the results of
|
|
// the calls on it and make no assumptions about how many calls
|
|
// will be made. Any state it keeps must be protected from the
|
|
// concurrent access.
|
|
// * If it is a function object, it has to define type result_type.
|
|
// We recommend deriving your functor classes from std::unary_function.
|
|
template <typename Callable, typename ResultOfMatcher>
|
|
internal::ResultOfMatcher<Callable> ResultOf(
|
|
Callable callable, const ResultOfMatcher& matcher) {
|
|
return internal::ResultOfMatcher<Callable>(
|
|
callable,
|
|
MatcherCast<typename internal::CallableTraits<Callable>::ResultType>(
|
|
matcher));
|
|
// The call to MatcherCast() is required for supporting inner
|
|
// matchers of compatible types. For example, it allows
|
|
// ResultOf(Function, m)
|
|
// to compile where Function() returns an int32 and m is a matcher for int64.
|
|
}
|
|
|
|
// String matchers.
|
|
|
|
// Matches a string equal to str.
|
|
inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> >
|
|
StrEq(const internal::string& str) {
|
|
return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>(
|
|
str, true, true));
|
|
}
|
|
|
|
// Matches a string not equal to str.
|
|
inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> >
|
|
StrNe(const internal::string& str) {
|
|
return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>(
|
|
str, false, true));
|
|
}
|
|
|
|
// Matches a string equal to str, ignoring case.
|
|
inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> >
|
|
StrCaseEq(const internal::string& str) {
|
|
return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>(
|
|
str, true, false));
|
|
}
|
|
|
|
// Matches a string not equal to str, ignoring case.
|
|
inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> >
|
|
StrCaseNe(const internal::string& str) {
|
|
return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>(
|
|
str, false, false));
|
|
}
|
|
|
|
// Creates a matcher that matches any string, std::string, or C string
|
|
// that contains the given substring.
|
|
inline PolymorphicMatcher<internal::HasSubstrMatcher<internal::string> >
|
|
HasSubstr(const internal::string& substring) {
|
|
return MakePolymorphicMatcher(internal::HasSubstrMatcher<internal::string>(
|
|
substring));
|
|
}
|
|
|
|
// Matches a string that starts with 'prefix' (case-sensitive).
|
|
inline PolymorphicMatcher<internal::StartsWithMatcher<internal::string> >
|
|
StartsWith(const internal::string& prefix) {
|
|
return MakePolymorphicMatcher(internal::StartsWithMatcher<internal::string>(
|
|
prefix));
|
|
}
|
|
|
|
// Matches a string that ends with 'suffix' (case-sensitive).
|
|
inline PolymorphicMatcher<internal::EndsWithMatcher<internal::string> >
|
|
EndsWith(const internal::string& suffix) {
|
|
return MakePolymorphicMatcher(internal::EndsWithMatcher<internal::string>(
|
|
suffix));
|
|
}
|
|
|
|
// Matches a string that fully matches regular expression 'regex'.
|
|
// The matcher takes ownership of 'regex'.
|
|
inline PolymorphicMatcher<internal::MatchesRegexMatcher> MatchesRegex(
|
|
const internal::RE* regex) {
|
|
return MakePolymorphicMatcher(internal::MatchesRegexMatcher(regex, true));
|
|
}
|
|
inline PolymorphicMatcher<internal::MatchesRegexMatcher> MatchesRegex(
|
|
const internal::string& regex) {
|
|
return MatchesRegex(new internal::RE(regex));
|
|
}
|
|
|
|
// Matches a string that contains regular expression 'regex'.
|
|
// The matcher takes ownership of 'regex'.
|
|
inline PolymorphicMatcher<internal::MatchesRegexMatcher> ContainsRegex(
|
|
const internal::RE* regex) {
|
|
return MakePolymorphicMatcher(internal::MatchesRegexMatcher(regex, false));
|
|
}
|
|
inline PolymorphicMatcher<internal::MatchesRegexMatcher> ContainsRegex(
|
|
const internal::string& regex) {
|
|
return ContainsRegex(new internal::RE(regex));
|
|
}
|
|
|
|
#if GTEST_HAS_GLOBAL_WSTRING || GTEST_HAS_STD_WSTRING
|
|
// Wide string matchers.
|
|
|
|
// Matches a string equal to str.
|
|
inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> >
|
|
StrEq(const internal::wstring& str) {
|
|
return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>(
|
|
str, true, true));
|
|
}
|
|
|
|
// Matches a string not equal to str.
|
|
inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> >
|
|
StrNe(const internal::wstring& str) {
|
|
return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>(
|
|
str, false, true));
|
|
}
|
|
|
|
// Matches a string equal to str, ignoring case.
|
|
inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> >
|
|
StrCaseEq(const internal::wstring& str) {
|
|
return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>(
|
|
str, true, false));
|
|
}
|
|
|
|
// Matches a string not equal to str, ignoring case.
|
|
inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> >
|
|
StrCaseNe(const internal::wstring& str) {
|
|
return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>(
|
|
str, false, false));
|
|
}
|
|
|
|
// Creates a matcher that matches any wstring, std::wstring, or C wide string
|
|
// that contains the given substring.
|
|
inline PolymorphicMatcher<internal::HasSubstrMatcher<internal::wstring> >
|
|
HasSubstr(const internal::wstring& substring) {
|
|
return MakePolymorphicMatcher(internal::HasSubstrMatcher<internal::wstring>(
|
|
substring));
|
|
}
|
|
|
|
// Matches a string that starts with 'prefix' (case-sensitive).
|
|
inline PolymorphicMatcher<internal::StartsWithMatcher<internal::wstring> >
|
|
StartsWith(const internal::wstring& prefix) {
|
|
return MakePolymorphicMatcher(internal::StartsWithMatcher<internal::wstring>(
|
|
prefix));
|
|
}
|
|
|
|
// Matches a string that ends with 'suffix' (case-sensitive).
|
|
inline PolymorphicMatcher<internal::EndsWithMatcher<internal::wstring> >
|
|
EndsWith(const internal::wstring& suffix) {
|
|
return MakePolymorphicMatcher(internal::EndsWithMatcher<internal::wstring>(
|
|
suffix));
|
|
}
|
|
|
|
#endif // GTEST_HAS_GLOBAL_WSTRING || GTEST_HAS_STD_WSTRING
|
|
|
|
// Creates a polymorphic matcher that matches a 2-tuple where the
|
|
// first field == the second field.
|
|
inline internal::Eq2Matcher Eq() { return internal::Eq2Matcher(); }
|
|
|
|
// Creates a polymorphic matcher that matches a 2-tuple where the
|
|
// first field >= the second field.
|
|
inline internal::Ge2Matcher Ge() { return internal::Ge2Matcher(); }
|
|
|
|
// Creates a polymorphic matcher that matches a 2-tuple where the
|
|
// first field > the second field.
|
|
inline internal::Gt2Matcher Gt() { return internal::Gt2Matcher(); }
|
|
|
|
// Creates a polymorphic matcher that matches a 2-tuple where the
|
|
// first field <= the second field.
|
|
inline internal::Le2Matcher Le() { return internal::Le2Matcher(); }
|
|
|
|
// Creates a polymorphic matcher that matches a 2-tuple where the
|
|
// first field < the second field.
|
|
inline internal::Lt2Matcher Lt() { return internal::Lt2Matcher(); }
|
|
|
|
// Creates a polymorphic matcher that matches a 2-tuple where the
|
|
// first field != the second field.
|
|
inline internal::Ne2Matcher Ne() { return internal::Ne2Matcher(); }
|
|
|
|
// Creates a matcher that matches any value of type T that m doesn't
|
|
// match.
|
|
template <typename InnerMatcher>
|
|
inline internal::NotMatcher<InnerMatcher> Not(InnerMatcher m) {
|
|
return internal::NotMatcher<InnerMatcher>(m);
|
|
}
|
|
|
|
// Creates a matcher that matches any value that matches all of the
|
|
// given matchers.
|
|
//
|
|
// For now we only support up to 5 matchers. Support for more
|
|
// matchers can be added as needed, or the user can use nested
|
|
// AllOf()s.
|
|
template <typename Matcher1, typename Matcher2>
|
|
inline internal::BothOfMatcher<Matcher1, Matcher2>
|
|
AllOf(Matcher1 m1, Matcher2 m2) {
|
|
return internal::BothOfMatcher<Matcher1, Matcher2>(m1, m2);
|
|
}
|
|
|
|
template <typename Matcher1, typename Matcher2, typename Matcher3>
|
|
inline internal::BothOfMatcher<Matcher1,
|
|
internal::BothOfMatcher<Matcher2, Matcher3> >
|
|
AllOf(Matcher1 m1, Matcher2 m2, Matcher3 m3) {
|
|
return AllOf(m1, AllOf(m2, m3));
|
|
}
|
|
|
|
template <typename Matcher1, typename Matcher2, typename Matcher3,
|
|
typename Matcher4>
|
|
inline internal::BothOfMatcher<Matcher1,
|
|
internal::BothOfMatcher<Matcher2,
|
|
internal::BothOfMatcher<Matcher3, Matcher4> > >
|
|
AllOf(Matcher1 m1, Matcher2 m2, Matcher3 m3, Matcher4 m4) {
|
|
return AllOf(m1, AllOf(m2, m3, m4));
|
|
}
|
|
|
|
template <typename Matcher1, typename Matcher2, typename Matcher3,
|
|
typename Matcher4, typename Matcher5>
|
|
inline internal::BothOfMatcher<Matcher1,
|
|
internal::BothOfMatcher<Matcher2,
|
|
internal::BothOfMatcher<Matcher3,
|
|
internal::BothOfMatcher<Matcher4, Matcher5> > > >
|
|
AllOf(Matcher1 m1, Matcher2 m2, Matcher3 m3, Matcher4 m4, Matcher5 m5) {
|
|
return AllOf(m1, AllOf(m2, m3, m4, m5));
|
|
}
|
|
|
|
// Creates a matcher that matches any value that matches at least one
|
|
// of the given matchers.
|
|
//
|
|
// For now we only support up to 5 matchers. Support for more
|
|
// matchers can be added as needed, or the user can use nested
|
|
// AnyOf()s.
|
|
template <typename Matcher1, typename Matcher2>
|
|
inline internal::EitherOfMatcher<Matcher1, Matcher2>
|
|
AnyOf(Matcher1 m1, Matcher2 m2) {
|
|
return internal::EitherOfMatcher<Matcher1, Matcher2>(m1, m2);
|
|
}
|
|
|
|
template <typename Matcher1, typename Matcher2, typename Matcher3>
|
|
inline internal::EitherOfMatcher<Matcher1,
|
|
internal::EitherOfMatcher<Matcher2, Matcher3> >
|
|
AnyOf(Matcher1 m1, Matcher2 m2, Matcher3 m3) {
|
|
return AnyOf(m1, AnyOf(m2, m3));
|
|
}
|
|
|
|
template <typename Matcher1, typename Matcher2, typename Matcher3,
|
|
typename Matcher4>
|
|
inline internal::EitherOfMatcher<Matcher1,
|
|
internal::EitherOfMatcher<Matcher2,
|
|
internal::EitherOfMatcher<Matcher3, Matcher4> > >
|
|
AnyOf(Matcher1 m1, Matcher2 m2, Matcher3 m3, Matcher4 m4) {
|
|
return AnyOf(m1, AnyOf(m2, m3, m4));
|
|
}
|
|
|
|
template <typename Matcher1, typename Matcher2, typename Matcher3,
|
|
typename Matcher4, typename Matcher5>
|
|
inline internal::EitherOfMatcher<Matcher1,
|
|
internal::EitherOfMatcher<Matcher2,
|
|
internal::EitherOfMatcher<Matcher3,
|
|
internal::EitherOfMatcher<Matcher4, Matcher5> > > >
|
|
AnyOf(Matcher1 m1, Matcher2 m2, Matcher3 m3, Matcher4 m4, Matcher5 m5) {
|
|
return AnyOf(m1, AnyOf(m2, m3, m4, m5));
|
|
}
|
|
|
|
// Returns a matcher that matches anything that satisfies the given
|
|
// predicate. The predicate can be any unary function or functor
|
|
// whose return type can be implicitly converted to bool.
|
|
template <typename Predicate>
|
|
inline PolymorphicMatcher<internal::TrulyMatcher<Predicate> >
|
|
Truly(Predicate pred) {
|
|
return MakePolymorphicMatcher(internal::TrulyMatcher<Predicate>(pred));
|
|
}
|
|
|
|
// Returns a matcher that matches an equal container.
|
|
// This matcher behaves like Eq(), but in the event of mismatch lists the
|
|
// values that are included in one container but not the other. (Duplicate
|
|
// values and order differences are not explained.)
|
|
template <typename Container>
|
|
inline PolymorphicMatcher<internal::ContainerEqMatcher< // NOLINT
|
|
GMOCK_REMOVE_CONST_(Container)> >
|
|
ContainerEq(const Container& rhs) {
|
|
// This following line is for working around a bug in MSVC 8.0,
|
|
// which causes Container to be a const type sometimes.
|
|
typedef GMOCK_REMOVE_CONST_(Container) RawContainer;
|
|
return MakePolymorphicMatcher(
|
|
internal::ContainerEqMatcher<RawContainer>(rhs));
|
|
}
|
|
|
|
// Matches an STL-style container or a native array that contains at
|
|
// least one element matching the given value or matcher.
|
|
//
|
|
// Examples:
|
|
// ::std::set<int> page_ids;
|
|
// page_ids.insert(3);
|
|
// page_ids.insert(1);
|
|
// EXPECT_THAT(page_ids, Contains(1));
|
|
// EXPECT_THAT(page_ids, Contains(Gt(2)));
|
|
// EXPECT_THAT(page_ids, Not(Contains(4)));
|
|
//
|
|
// ::std::map<int, size_t> page_lengths;
|
|
// page_lengths[1] = 100;
|
|
// EXPECT_THAT(page_lengths,
|
|
// Contains(::std::pair<const int, size_t>(1, 100)));
|
|
//
|
|
// const char* user_ids[] = { "joe", "mike", "tom" };
|
|
// EXPECT_THAT(user_ids, Contains(Eq(::std::string("tom"))));
|
|
template <typename M>
|
|
inline internal::ContainsMatcher<M> Contains(M matcher) {
|
|
return internal::ContainsMatcher<M>(matcher);
|
|
}
|
|
|
|
// Key(inner_matcher) matches an std::pair whose 'first' field matches
|
|
// inner_matcher. For example, Contains(Key(Ge(5))) can be used to match an
|
|
// std::map that contains at least one element whose key is >= 5.
|
|
template <typename M>
|
|
inline internal::KeyMatcher<M> Key(M inner_matcher) {
|
|
return internal::KeyMatcher<M>(inner_matcher);
|
|
}
|
|
|
|
// Pair(first_matcher, second_matcher) matches a std::pair whose 'first' field
|
|
// matches first_matcher and whose 'second' field matches second_matcher. For
|
|
// example, EXPECT_THAT(map_type, ElementsAre(Pair(Ge(5), "foo"))) can be used
|
|
// to match a std::map<int, string> that contains exactly one element whose key
|
|
// is >= 5 and whose value equals "foo".
|
|
template <typename FirstMatcher, typename SecondMatcher>
|
|
inline internal::PairMatcher<FirstMatcher, SecondMatcher>
|
|
Pair(FirstMatcher first_matcher, SecondMatcher second_matcher) {
|
|
return internal::PairMatcher<FirstMatcher, SecondMatcher>(
|
|
first_matcher, second_matcher);
|
|
}
|
|
|
|
// Returns a predicate that is satisfied by anything that matches the
|
|
// given matcher.
|
|
template <typename M>
|
|
inline internal::MatcherAsPredicate<M> Matches(M matcher) {
|
|
return internal::MatcherAsPredicate<M>(matcher);
|
|
}
|
|
|
|
// Returns true iff the value matches the matcher.
|
|
template <typename T, typename M>
|
|
inline bool Value(const T& value, M matcher) {
|
|
return testing::Matches(matcher)(value);
|
|
}
|
|
|
|
// Matches the value against the given matcher and explains the match
|
|
// result to listener.
|
|
template <typename T, typename M>
|
|
inline bool ExplainMatchResult(
|
|
M matcher, const T& value, MatchResultListener* listener) {
|
|
return SafeMatcherCast<const T&>(matcher).MatchAndExplain(value, listener);
|
|
}
|
|
|
|
// AllArgs(m) is a synonym of m. This is useful in
|
|
//
|
|
// EXPECT_CALL(foo, Bar(_, _)).With(AllArgs(Eq()));
|
|
//
|
|
// which is easier to read than
|
|
//
|
|
// EXPECT_CALL(foo, Bar(_, _)).With(Eq());
|
|
template <typename InnerMatcher>
|
|
inline InnerMatcher AllArgs(const InnerMatcher& matcher) { return matcher; }
|
|
|
|
// These macros allow using matchers to check values in Google Test
|
|
// tests. ASSERT_THAT(value, matcher) and EXPECT_THAT(value, matcher)
|
|
// succeed iff the value matches the matcher. If the assertion fails,
|
|
// the value and the description of the matcher will be printed.
|
|
#define ASSERT_THAT(value, matcher) ASSERT_PRED_FORMAT1(\
|
|
::testing::internal::MakePredicateFormatterFromMatcher(matcher), value)
|
|
#define EXPECT_THAT(value, matcher) EXPECT_PRED_FORMAT1(\
|
|
::testing::internal::MakePredicateFormatterFromMatcher(matcher), value)
|
|
|
|
} // namespace testing
|
|
|
|
#endif // GMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_
|