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Merge pull request #2453 from kuzkry:gtest-port-clean-up_kMaxBiggestInt

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PiperOrigin-RevId: 278008286
This commit is contained in:
Xiaoyi Zhang
2019-11-04 11:43:27 -05:00
parent e8a82dc7ed 6e87238c9b
commit 8697709e03
6 changed files with 89 additions and 70 deletions
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35
googletest/include/gtest/gtest-printers.h
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@@ -133,7 +133,7 @@ GTEST_API_ void PrintBytesInObjectTo(const unsigned char* obj_bytes,
// nor PrintTo().
enum TypeKind {
kProtobuf, // a protobuf type
kConvertibleToInteger, // a type implicitly convertible to std::intmax_t
kConvertibleToInteger, // a type implicitly convertible to BiggestInt
// (e.g. a named or unnamed enum type)
#if GTEST_HAS_ABSL
kConvertibleToStringView, // a type implicitly convertible to
@@ -179,14 +179,14 @@ template <typename T>
class TypeWithoutFormatter<T, kConvertibleToInteger> {
public:
// Since T has no << operator or PrintTo() but can be implicitly
// converted to the maximum width integer, we print it as a std::intmax_t.
// converted to BiggestInt, we print it as a BiggestInt.
//
// Most likely T is an enum type (either named or unnamed), in which
// case printing it as an integer is the desired behavior. In case
// case printing it as an integer is the desired behavior. In case
// T is not an enum, printing it as an integer is the best we can do
// given that it has no user-defined printer.
static void PrintValue(const T& value, ::std::ostream* os) {
const std::intmax_t kBigInt = value;
const internal::BiggestInt kBigInt = value;
*os << kBigInt;
}
};
@@ -204,10 +204,10 @@ class TypeWithoutFormatter<T, kConvertibleToStringView> {
};
#endif
// Prints the given value to the given ostream. If the value is a
// Prints the given value to the given ostream. If the value is a
// protocol message, its debug string is printed; if it's an enum or
// of a type implicitly convertible to std::intmax_t, it's printed as an
// integer; otherwise the bytes in the value are printed. This is
// of a type implicitly convertible to BiggestInt, it's printed as an
// integer; otherwise the bytes in the value are printed. This is
// what UniversalPrinter<T>::Print() does when it knows nothing about
// type T and T has neither << operator nor PrintTo().
//
@@ -231,18 +231,19 @@ class TypeWithoutFormatter<T, kConvertibleToStringView> {
template <typename Char, typename CharTraits, typename T>
::std::basic_ostream<Char, CharTraits>& operator<<(
::std::basic_ostream<Char, CharTraits>& os, const T& x) {
TypeWithoutFormatter<
T, (internal::IsAProtocolMessage<T>::value
? kProtobuf
: std::is_convertible<const T&, std::intmax_t>::value
? kConvertibleToInteger
:
TypeWithoutFormatter<T, (internal::IsAProtocolMessage<T>::value
? kProtobuf
: std::is_convertible<
const T&, internal::BiggestInt>::value
? kConvertibleToInteger
:
#if GTEST_HAS_ABSL
std::is_convertible<const T&, absl::string_view>::value
? kConvertibleToStringView
:
std::is_convertible<
const T&, absl::string_view>::value
? kConvertibleToStringView
:
#endif
kOtherType)>::PrintValue(x, &os);
kOtherType)>::PrintValue(x, &os);
return os;
}

48
googletest/include/gtest/gtest.h
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@@ -1531,11 +1531,13 @@ AssertionResult CmpHelperEQ(const char* lhs_expression,
return CmpHelperEQFailure(lhs_expression, rhs_expression, lhs, rhs);
}
// With this overloaded version, we allow anonymous enums to be used in
// {ASSERT|EXPECT}_EQ as anonymous enums can be implicitly cast to integers.
// With this overloaded version, we allow anonymous enums to be used
// in {ASSERT|EXPECT}_EQ when compiled with gcc 4, as anonymous enums
// can be implicitly cast to BiggestInt.
GTEST_API_ AssertionResult CmpHelperEQ(const char* lhs_expression,
const char* rhs_expression,
std::intmax_t lhs, std::intmax_t rhs);
BiggestInt lhs,
BiggestInt rhs);
class EqHelper {
public:
@@ -1552,14 +1554,16 @@ class EqHelper {
return CmpHelperEQ(lhs_expression, rhs_expression, lhs, rhs);
}
// With this overloaded version, we allow anonymous enums to be used in
// {ASSERT|EXPECT}_EQ as anonymous enums can be implicitly cast to integers.
// With this overloaded version, we allow anonymous enums to be used
// in {ASSERT|EXPECT}_EQ when compiled with gcc 4, as anonymous
// enums can be implicitly cast to BiggestInt.
//
// Even though its body looks the same as the above version, we
// cannot merge the two, as it will make anonymous enums unhappy.
static AssertionResult Compare(const char* lhs_expression,
const char* rhs_expression, std::intmax_t lhs,
std::intmax_t rhs) {
const char* rhs_expression,
BiggestInt lhs,
BiggestInt rhs) {
return CmpHelperEQ(lhs_expression, rhs_expression, lhs, rhs);
}
@@ -1592,24 +1596,24 @@ AssertionResult CmpHelperOpFailure(const char* expr1, const char* expr2,
// of similar code.
//
// For each templatized helper function, we also define an overloaded
// version for std::intmax_t in order to reduce code bloat and allow
// anonymous enums to be used with {ASSERT|EXPECT}_??.
// version for BiggestInt in order to reduce code bloat and allow
// anonymous enums to be used with {ASSERT|EXPECT}_?? when compiled
// with gcc 4.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
#define GTEST_IMPL_CMP_HELPER_(op_name, op) \
template <typename T1, typename T2> \
AssertionResult CmpHelper##op_name(const char* expr1, const char* expr2, \
const T1& val1, const T2& val2) { \
if (val1 op val2) { \
return AssertionSuccess(); \
} else { \
return CmpHelperOpFailure(expr1, expr2, val1, val2, #op); \
} \
} \
GTEST_API_ AssertionResult CmpHelper##op_name( \
const char* expr1, const char* expr2, std::intmax_t val1, \
std::intmax_t val2)
#define GTEST_IMPL_CMP_HELPER_(op_name, op)\
template <typename T1, typename T2>\
AssertionResult CmpHelper##op_name(const char* expr1, const char* expr2, \
const T1& val1, const T2& val2) {\
if (val1 op val2) {\
return AssertionSuccess();\
} else {\
return CmpHelperOpFailure(expr1, expr2, val1, val2, #op);\
}\
}\
GTEST_API_ AssertionResult CmpHelper##op_name(\
const char* expr1, const char* expr2, BiggestInt val1, BiggestInt val2)
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.

14
googletest/include/gtest/internal/gtest-port.h
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@@ -225,6 +225,7 @@
// TypeWithSize - maps an integer to a int type.
// Int32, UInt32, Int64, UInt64, TimeInMillis
// - integers of known sizes.
// BiggestInt - the biggest signed integer type.
//
// Command-line utilities:
// GTEST_DECLARE_*() - declares a flag.
@@ -1875,9 +1876,12 @@ GTEST_API_ size_t GetThreadCount();
#if GTEST_OS_WINDOWS
# define GTEST_PATH_SEP_ "\\"
# define GTEST_HAS_ALT_PATH_SEP_ 1
// The biggest signed integer type the compiler supports.
typedef __int64 BiggestInt;
#else
# define GTEST_PATH_SEP_ "/"
# define GTEST_HAS_ALT_PATH_SEP_ 0
typedef long long BiggestInt; // NOLINT
#endif // GTEST_OS_WINDOWS
// Utilities for char.
@@ -2080,6 +2084,16 @@ GTEST_DISABLE_MSC_DEPRECATED_POP_()
# define GTEST_SNPRINTF_ snprintf
#endif
// The maximum number a BiggestInt can represent. This definition
// works no matter BiggestInt is represented in one's complement or
// two's complement.
//
// We cannot rely on numeric_limits in STL, as __int64 and long long
// are not part of standard C++ and numeric_limits doesn't need to be
// defined for them.
const BiggestInt kMaxBiggestInt =
~(static_cast<BiggestInt>(1) << (8*sizeof(BiggestInt) - 1));
// This template class serves as a compile-time function from size to
// type. It maps a size in bytes to a primitive type with that
// size. e.g.

31
googletest/src/gtest.cc
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@@ -1442,8 +1442,9 @@ namespace internal {
// The helper function for {ASSERT|EXPECT}_EQ with int or enum
// arguments.
AssertionResult CmpHelperEQ(const char* lhs_expression,
const char* rhs_expression, std::intmax_t lhs,
std::intmax_t rhs) {
const char* rhs_expression,
BiggestInt lhs,
BiggestInt rhs) {
if (lhs == rhs) {
return AssertionSuccess();
}
@@ -1456,20 +1457,20 @@ AssertionResult CmpHelperEQ(const char* lhs_expression,
}
// A macro for implementing the helper functions needed to implement
// ASSERT_?? and EXPECT_?? with integer or enum arguments. It is here
// ASSERT_?? and EXPECT_?? with integer or enum arguments. It is here
// just to avoid copy-and-paste of similar code.
#define GTEST_IMPL_CMP_HELPER_(op_name, op) \
AssertionResult CmpHelper##op_name(const char* expr1, const char* expr2, \
std::intmax_t val1, std::intmax_t val2) { \
if (val1 op val2) { \
return AssertionSuccess(); \
} else { \
return AssertionFailure() \
<< "Expected: (" << expr1 << ") " #op " (" << expr2 \
<< "), actual: " << FormatForComparisonFailureMessage(val1, val2) \
<< " vs " << FormatForComparisonFailureMessage(val2, val1); \
} \
}
#define GTEST_IMPL_CMP_HELPER_(op_name, op)\
AssertionResult CmpHelper##op_name(const char* expr1, const char* expr2, \
BiggestInt val1, BiggestInt val2) {\
if (val1 op val2) {\
return AssertionSuccess();\
} else {\
return AssertionFailure() \
<< "Expected: (" << expr1 << ") " #op " (" << expr2\
<< "), actual: " << FormatForComparisonFailureMessage(val1, val2)\
<< " vs " << FormatForComparisonFailureMessage(val2, val1);\
}\
}
// Implements the helper function for {ASSERT|EXPECT}_NE with int or
// enum arguments.

25
googletest/test/googletest-printers-test.cc
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@@ -83,12 +83,10 @@ void PrintTo(EnumWithPrintTo e, std::ostream* os) {
*os << (e == kEWPT1 ? "kEWPT1" : "invalid");
}
// A class implicitly convertible to std::intmax_t.
class IntMaxConvertible {
// A class implicitly convertible to BiggestInt.
class BiggestIntConvertible {
public:
constexpr operator std::intmax_t() const { // NOLINT(runtime/explicit)
return 42;
}
operator ::testing::internal::BiggestInt() const { return 42; }
};
// A user-defined unprintable class template in the global namespace.
@@ -269,10 +267,10 @@ TEST(PrintEnumTest, EnumWithPrintTo) {
EXPECT_EQ("invalid", Print(static_cast<EnumWithPrintTo>(0)));
}
// Tests printing a class implicitly convertible to std::intmax_t.
// Tests printing a class implicitly convertible to BiggestInt.
TEST(PrintClassTest, IntMaxConvertible) {
EXPECT_EQ("42", Print(IntMaxConvertible()));
TEST(PrintClassTest, BiggestIntConvertible) {
EXPECT_EQ("42", Print(BiggestIntConvertible()));
}
// Tests printing various char types.
@@ -527,9 +525,10 @@ TEST(PrintPointerTest, NonMemberFunctionPointer) {
// standard disallows casting between pointers to functions and
// pointers to objects, and some compilers (e.g. GCC 3.4) enforce
// this limitation.
EXPECT_EQ(PrintPointer(reinterpret_cast<const void*>(
reinterpret_cast<std::intptr_t>(&MyFunction))),
Print(&MyFunction));
EXPECT_EQ(
PrintPointer(reinterpret_cast<const void*>(
reinterpret_cast<internal::BiggestInt>(&MyFunction))),
Print(&MyFunction));
int (*p)(bool) = NULL; // NOLINT
EXPECT_EQ("NULL", Print(p));
}
@@ -1121,8 +1120,8 @@ TEST(PrintReferenceTest, HandlesFunctionPointer) {
// standard disallows casting between pointers to functions and
// pointers to objects, and some compilers (e.g. GCC 3.4) enforce
// this limitation.
const std::string fp_string = PrintPointer(
reinterpret_cast<const void*>(reinterpret_cast<std::intptr_t>(fp)));
const std::string fp_string = PrintPointer(reinterpret_cast<const void*>(
reinterpret_cast<internal::BiggestInt>(fp)));
EXPECT_EQ("@" + fp_pointer_string + " " + fp_string,
PrintByRef(fp));
}

6
googletest/test/gtest_unittest.cc
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@@ -55,11 +55,11 @@ TEST(CommandLineFlagsTest, CanBeAccessedInCodeOnceGTestHIsIncluded) {
EXPECT_TRUE(dummy || !dummy); // Suppresses warning that dummy is unused.
}
#include <limits.h> // For INT_MAX.
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <limits>
#include <map>
#include <ostream>
#include <type_traits>
@@ -3952,11 +3952,11 @@ enum {
// On Linux, kCaseB and kCaseA have the same value when truncated to
// int size. We want to test whether this will confuse the
// assertions.
kCaseB = (std::numeric_limits<std::intmax_t>::max)(),
kCaseB = testing::internal::kMaxBiggestInt,
# else
kCaseB = (std::numeric_limits<int>::max)(),
kCaseB = INT_MAX,
# endif // GTEST_OS_LINUX