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Merge pull request #2742 from kuzkry:c++17-type-printers

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PiperOrigin-RevId: 314593695
This commit is contained in:
Gennadiy Rozental
2020-06-05 03:56:58 -04:00
parent 210aab09de eb3953f805
commit 07d4a6e93d
5 changed files with 209 additions and 39 deletions
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53
googletest/test/googletest-printers-test.cc
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@@ -1531,32 +1531,65 @@ TEST(UniversalTersePrintTupleFieldsToStringsTestWithStd, PrintsTersely) {
EXPECT_EQ("\"a\"", result[1]);
}
#if GTEST_HAS_ABSL
#if GTEST_INTERNAL_HAS_ANY
class PrintAnyTest : public ::testing::Test {
protected:
template <typename T>
static std::string ExpectedTypeName() {
#if GTEST_HAS_RTTI
return internal::GetTypeName<T>();
#else
return "<unknown_type>";
#endif // GTEST_HAS_RTTI
}
};
TEST_F(PrintAnyTest, Empty) {
internal::Any any;
EXPECT_EQ("no value", PrintToString(any));
}
TEST_F(PrintAnyTest, NonEmpty) {
internal::Any any;
constexpr int val1 = 10;
const std::string val2 = "content";
any = val1;
EXPECT_EQ("value of type " + ExpectedTypeName<int>(), PrintToString(any));
any = val2;
EXPECT_EQ("value of type " + ExpectedTypeName<std::string>(),
PrintToString(any));
}
#endif // GTEST_INTERNAL_HAS_ANY
#if GTEST_INTERNAL_HAS_OPTIONAL
TEST(PrintOptionalTest, Basic) {
absl::optional<int> value;
internal::Optional<int> value;
EXPECT_EQ("(nullopt)", PrintToString(value));
value = {7};
EXPECT_EQ("(7)", PrintToString(value));
EXPECT_EQ("(1.1)", PrintToString(absl::optional<double>{1.1}));
EXPECT_EQ("(\"A\")", PrintToString(absl::optional<std::string>{"A"}));
EXPECT_EQ("(1.1)", PrintToString(internal::Optional<double>{1.1}));
EXPECT_EQ("(\"A\")", PrintToString(internal::Optional<std::string>{"A"}));
}
#endif // GTEST_INTERNAL_HAS_OPTIONAL
#if GTEST_INTERNAL_HAS_VARIANT
struct NonPrintable {
unsigned char contents = 17;
};
TEST(PrintOneofTest, Basic) {
using Type = absl::variant<int, StreamableInGlobal, NonPrintable>;
EXPECT_EQ("('int' with value 7)", PrintToString(Type(7)));
EXPECT_EQ("('StreamableInGlobal' with value StreamableInGlobal)",
using Type = internal::Variant<int, StreamableInGlobal, NonPrintable>;
EXPECT_EQ("('int(index = 0)' with value 7)", PrintToString(Type(7)));
EXPECT_EQ("('StreamableInGlobal(index = 1)' with value StreamableInGlobal)",
PrintToString(Type(StreamableInGlobal{})));
EXPECT_EQ(
"('testing::gtest_printers_test::NonPrintable' with value 1-byte object "
"<11>)",
"('testing::gtest_printers_test::NonPrintable(index = 2)' with value "
"1-byte object <11>)",
PrintToString(Type(NonPrintable{})));
}
#endif // GTEST_HAS_ABSL
#endif // GTEST_INTERNAL_HAS_VARIANT
namespace {
class string_ref;