Add support for named value-parameterized tests.

1 files changed, 19 insertions, 1 deletions

diff --git a/include/gtest/gtest-param-test.h b/include/gtest/gtest-param-test.h
index 9a1d8a62..038f9ba7 100644
--- a/include/gtest/gtest-param-test.h
+++ b/include/gtest/gtest-param-test.h
@@ -1406,9 +1406,26 @@ internal::CartesianProductHolder10<Generator1, Generator2, Generator3,
       GTEST_TEST_CLASS_NAME_(test_case_name, test_name)::AddToRegistry(); \
   void GTEST_TEST_CLASS_NAME_(test_case_name, test_name)::TestBody()
 
-# define INSTANTIATE_TEST_CASE_P(prefix, test_case_name, generator) \
+// The optional last argument to INSTANTIATE_TEST_CASE_P allows the user
+// to specify a function or functor that generates custom test name suffixes
+// based on the test parameters. The function should accept one argument of
+// type testing::TestParamInfo<class ParamType>, and return std::string.
+//
+// testing::PrintToStringParamName is a builtin test suffix generator that
+// returns the value of testing::PrintToString(GetParam()). It does not work
+// for std::string or C strings.
+//
+// Note: test names must be non-empty, unique, and may only contain ASCII
+// alphanumeric characters or underscore.
+
+# define INSTANTIATE_TEST_CASE_P(prefix, test_case_name, generator, ...) \
   ::testing::internal::ParamGenerator<test_case_name::ParamType> \
       gtest_##prefix##test_case_name##_EvalGenerator_() { return generator; } \
+  ::std::string gtest_##prefix##test_case_name##_EvalGenerateName_( \
+      const ::testing::TestParamInfo<test_case_name::ParamType>& info) { \
+    return ::testing::internal::GetParamNameGen<test_case_name::ParamType> \
+        (__VA_ARGS__)(info); \
+  } \
   int gtest_##prefix##test_case_name##_dummy_ GTEST_ATTRIBUTE_UNUSED_ = \
       ::testing::UnitTest::GetInstance()->parameterized_test_registry(). \
           GetTestCasePatternHolder<test_case_name>(\
@@ -1417,6 +1434,7 @@ internal::CartesianProductHolder10<Generator1, Generator2, Generator3,
                   __FILE__, __LINE__))->AddTestCaseInstantiation(\
                       #prefix, \
                       &gtest_##prefix##test_case_name##_EvalGenerator_, \
+                      &gtest_##prefix##test_case_name##_EvalGenerateName_, \
                       __FILE__, __LINE__)
 
 }  // namespace testing