724   EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex(NULL)),  in TEST()
727       ASSERT_FALSE(ValidateRegex("a\\")),  in TEST()
729   EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("a\\")),  in TEST()
731   EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("\\n\\")),  in TEST()
733   EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("\\s\\hb")),  in TEST()
735   EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("^^")),  in TEST()
737   EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex(".*^b")),  in TEST()
739   EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("$$")),  in TEST()
741   EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("^$a")),  in TEST()
743   EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("a(b")),  in TEST()
745   EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("ab)")),  in TEST()
747   EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("[ab")),  in TEST()
749   EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("a{2")),  in TEST()
751   EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("?")),  in TEST()
753   EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("^*")),  in TEST()
755   EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("5*+")),  in TEST()
760   EXPECT_TRUE(ValidateRegex(""));  in TEST()
761   EXPECT_TRUE(ValidateRegex("a"));  in TEST()
762   EXPECT_TRUE(ValidateRegex(".*"));  in TEST()
763   EXPECT_TRUE(ValidateRegex("^a_+"));  in TEST()
764   EXPECT_TRUE(ValidateRegex("^a\\t\\&?"));  in TEST()
765   EXPECT_TRUE(ValidateRegex("09*$"));  in TEST()
766   EXPECT_TRUE(ValidateRegex("^Z$"));  in TEST()
767   EXPECT_TRUE(ValidateRegex("a\\^Z\\$\\(\\)\\|\\[\\]\\{\\}"));  in TEST()