Each test will be retried up to the specified number of times in case of any test failure. Tests that required more than one attempt to pass are marked as 'FLAKY' in the test summary. Normally the value specified is just an integer or the string 'default'. If an integer, then all tests will be run up to N times. If 'default', then only a single test attempt will be made for regular tests and three for tests marked explicitly as flaky by their rule (flaky=1 attribute). Alternate syntax: regex_filter@flaky_test_attempts. Where flaky_test_attempts is as above and regex_filter stands for a list of include and exclude regular expression patterns (Also see --runs_per_test). Example: --flaky_test_attempts=//foo/. *,-//foo/bar/.*@3 deflakes all tests in //foo/ except those under foo/bar three times. This option can be passed multiple times. The most recently passed argument that matches takes precedence. If nothing matches, behavior is as if 'default' above.