# assertRegExp() >[info] ## assertRegExp(string $pattern, string $string[, string $message = '']) 当 `$string` 不匹配于正则表达式 `$pattern` 时报告错误，错误讯息由 `$message` 指定。 `assertNotRegExp()` 是与之相反的断言，接受相同的参数。 **Example A.34. assertRegExp() 的用法** ~~~ <?php class RegExpTest extends PHPUnit_Framework_TestCase { public function testFailure() { $this->assertRegExp('/foo/', 'bar'); } } ?> ~~~ ~~~ phpunit RegExpTest PHPUnit 5.0.0 by Sebastian Bergmann and contributors. F Time: 0 seconds, Memory: 5.00Mb There was 1 failure: 1) RegExpTest::testFailure Failed asserting that 'bar' matches PCRE pattern "/foo/". /home/sb/RegExpTest.php:6 FAILURES! Tests: 1, Assertions: 1, Failures: 1. ~~~