def runTests(self):
log.debug("<STR_LIT>")<EOL>if self.testRunner is None:<EOL><INDENT>self.testRunner = TextTestRunner(stream=self.config.stream,<EOL>verbosity=self.config.verbosity,<EOL>config=self.config)<EOL><DEDENT>plug_runner = self.config.plugins.prepareTestRunner(self.testRunner)<EOL>if plug_runner is not None:<EOL><INDENT>self.testRunner = plug_runner<EOL><DEDENT>result = self.testRunner.run(self.test)<EOL>self.success = result.wasSuccessful()<EOL>if self.exit:<EOL><INDENT>sys.exit(not self.success)<EOL><DEDENT>return self.success<EOL>
Run Tests. Returns true on success, false on failure, and sets
        self.success to the same value.