Remove / from parameterized test names if base test name is empty

This is useful to let a subsystem generate test names based on parameterized tests
without exposing them as such to the user.

Signed-off-by: Knut Omang <knut.omang@oracle.com>

googletest/test/googletest-output-test_.cc

@@ -96,6 +96,18 @@ INSTANTIATE_TEST_SUITE_P(PrintingFailingParams,
                          FailingParamTest,
                          testing::Values(2));
 
+// Tests that an empty value for the test suite basename yields just
+// the test name without any prior /
+class EmptyBasenameParamInst : public testing::TestWithParam<int> {};
+
+TEST_P(EmptyBasenameParamInst, Passes) {
+  EXPECT_EQ(1, GetParam());
+}
+
+INSTANTIATE_TEST_SUITE_P(,
+			 EmptyBasenameParamInst,
+                         testing::Values(1));
+
 static const char kGoldenString[] = "\"Line\0 1\"\nLine 2";
 
 TEST(NonfatalFailureTest, EscapesStringOperands) {