756   static base::NoDestructor<std::string> log_string;  in TEST_F()  local
759     *log_string = str;  in TEST_F()
767   EXPECT_NE(std::string::npos, log_string->find(kPrefix));  in TEST_F()
771   EXPECT_EQ(std::string::npos, log_string->find(kPrefix));  in TEST_F()
785   static base::NoDestructor<std::string> log_string;  in TEST_F()  local
788     *log_string = str;  in TEST_F()
800     EXPECT_THAT(*log_string, ::testing::MatchesRegex(kTimestampPattern));  in TEST_F()
801     EXPECT_THAT(*log_string, ::testing::MatchesRegex(kExpected));  in TEST_F()
811     EXPECT_THAT(*log_string, ::testing::MatchesRegex(kTimestampPattern));  in TEST_F()
812     EXPECT_THAT(*log_string, ::testing::MatchesRegex(kExpected));  in TEST_F()
822     EXPECT_THAT(*log_string, ::testing::MatchesRegex(kTimestampPattern));  in TEST_F()
823     EXPECT_THAT(*log_string, ::testing::MatchesRegex(kExpected));  in TEST_F()
833     EXPECT_THAT(*log_string, ::testing::MatchesRegex(kTimestampPattern));  in TEST_F()
834     EXPECT_THAT(*log_string, ::testing::MatchesRegex(kExpected));  in TEST_F()
844     EXPECT_THAT(*log_string, ::testing::MatchesRegex(kExpected));  in TEST_F()
991   static base::NoDestructor<std::string> log_string;  in TEST_F()  local
994     *log_string = str;  in TEST_F()
1006   EXPECT_NE(std::string::npos, log_string->find(kExpectedSystemErrorMsg));  in TEST_F()
1009     *log_string = "";  in TEST_F()
1013     EXPECT_NE(std::string::npos, log_string->find(kExpectedSystemErrorMsg));  in TEST_F()
1020   static base::NoDestructor<std::string> log_string;  in TEST_F()  local
1023     *log_string = str;  in TEST_F()
1030   EXPECT_TRUE(log_string->empty());  in TEST_F()
1042   EXPECT_THAT(*log_string, ::testing::MatchesRegex(".* Expect logged\n"));  in TEST_F()
1044   log_string->clear();  in TEST_F()
1046   EXPECT_TRUE(log_string->empty());  in TEST_F()