Rollback: Uses a simpler mechanism to disable the copying of GoogleTest test suites.

PiperOrigin-RevId: 477560280
Change-Id: I1c1f5a1d6645859ec38cb1a75cd267816d2aff35

googletest/include/gtest/gtest-param-test.h

@@ -409,7 +409,7 @@ internal::CartesianProductHolder<Generator...> Combine(const Generator&... g) {
 
 #define TEST_P(test_suite_name, test_name)                                     \
   class GTEST_TEST_CLASS_NAME_(test_suite_name, test_name)                     \
-      : public test_suite_name, private ::testing::internal::NonCopyable {     \
+      : public ::testing::internal::UserTestSuite<test_suite_name> {           \
    public:                                                                     \
     GTEST_TEST_CLASS_NAME_(test_suite_name, test_name)() {}                    \
     void TestBody() override;                                                  \

googletest/include/gtest/gtest.h

@@ -190,12 +190,19 @@ void ReportFailureInUnknownLocation(TestPartResult::Type result_type,
                                     const std::string& message);
 std::set<std::string>* GetIgnoredParameterizedTestSuites();
 
-class NonCopyable {
+// Mix-in class for user tests.
+// This allows us to add/delete members to/from test suites without having to
+// modify the test macros themselves.
+// This makes the code easier to read and maintain, as well making it easier
+// for users to suppress any warnings originating from these members, as the
+// members are now declared in an external header instead of in user code.
+template <class TestClass>
+class UserTestSuite : public TestClass {
  public:
-  NonCopyable() = default;
-  NonCopyable(const NonCopyable &) = delete;
-  NonCopyable &operator=(const NonCopyable &) = delete;
-  ~NonCopyable() = default;
+  UserTestSuite() = default;
+  UserTestSuite(const UserTestSuite &) = delete;
+  UserTestSuite &operator=(const UserTestSuite &) = delete;
+  virtual ~UserTestSuite() = default;
 };
 
 }  // namespace internal