# assertFileEquals() >[info] ## assertFileEquals(string $expected, string $actual[, string $message = '']) 当 `$expected` 所指定的文件与 `$actual` 所指定的文件内容不同时报告错误，错误讯息由 `$message` 指定。 `assertFileNotEquals()` 是与之相反的断言，接受相同的参数。 **Example A.19. assertFileEquals() 的用法** ~~~ <?php class FileEqualsTest extends PHPUnit_Framework_TestCase { public function testFailure() { $this->assertFileEquals('/home/sb/expected', '/home/sb/actual'); } } ?> ~~~ ~~~ phpunit FileEqualsTest PHPUnit 5.0.0 by Sebastian Bergmann and contributors. F Time: 0 seconds, Memory: 5.25Mb There was 1 failure: 1) FileEqualsTest::testFailure Failed asserting that two strings are equal. --- Expected +++ Actual @@ @@ -'expected +'actual ' /home/sb/FileEqualsTest.php:6 FAILURES! Tests: 1, Assertions: 3, Failures: 1. ~~~