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Deduplicate testing::ReferenceWrapper with std::reference_wrapper.
Minor cleanups in matchers_test.

PiperOrigin-RevId: 229022872
This commit is contained in:
Abseil Team
2019-01-12 12:26:37 -05:00
committed by Gennadiy Civil
parent 0599a7b841
commit 097407fd3c
5 changed files with 19 additions and 105 deletions
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3
googletest/include/gtest/gtest-printers.h
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@@ -637,8 +637,7 @@ inline void PrintTo(std::nullptr_t, ::std::ostream* os) { *os << "(nullptr)"; }
template <typename T>
void PrintTo(std::reference_wrapper<T> ref, ::std::ostream* os) {
// Delegate to wrapped value.
PrintTo(ref.get(), os);
UniversalPrinter<T&>::Print(ref.get(), os);
}
// Helper function for printing a tuple. T must be instantiated with

16
googletest/test/googletest-printers-test.cc
View File

@@ -1023,16 +1023,20 @@ TEST(PrintNullptrT, Basic) {
TEST(PrintReferenceWrapper, Printable) {
int x = 5;
EXPECT_EQ("5", Print(std::ref(x)));
EXPECT_EQ("5", Print(std::cref(x)));
EXPECT_EQ("@" + PrintPointer(&x) + " 5", Print(std::ref(x)));
EXPECT_EQ("@" + PrintPointer(&x) + " 5", Print(std::cref(x)));
}
TEST(PrintReferenceWrapper, Unprintable) {
::foo::UnprintableInFoo up;
EXPECT_EQ("16-byte object <EF-12 00-00 34-AB 00-00 00-00 00-00 00-00 00-00>",
Print(std::ref(up)));
EXPECT_EQ("16-byte object <EF-12 00-00 34-AB 00-00 00-00 00-00 00-00 00-00>",
Print(std::cref(up)));
EXPECT_EQ(
"@" + PrintPointer(&up) +
" 16-byte object <EF-12 00-00 34-AB 00-00 00-00 00-00 00-00 00-00>",
Print(std::ref(up)));
EXPECT_EQ(
"@" + PrintPointer(&up) +
" 16-byte object <EF-12 00-00 34-AB 00-00 00-00 00-00 00-00 00-00>",
Print(std::cref(up)));
}
// Tests printing user-defined unprintable types.