# assertJsonFileEqualsJsonFile() >[info] ## assertJsonFileEqualsJsonFile(mixed $expectedFile, mixed $actualFile[, string $message = '']) 当 `$actualFile` 对应的值与 `$expectedFile` 对应的值不匹配时报告错误，错误讯息由 `$message` 指定。 **Example A.26. assertJsonFileEqualsJsonFile() 的用法** ~~~ <?php class JsonFileEqualsJsonFileTest extends PHPUnit_Framework_TestCase { public function testFailure() { $this->assertJsonFileEqualsJsonFile( 'path/to/fixture/file', 'path/to/actual/file'); } } ?> ~~~ ~~~ phpunit JsonFileEqualsJsonFileTest PHPUnit 5.0.0 by Sebastian Bergmann and contributors. F Time: 0 seconds, Memory: 5.00Mb There was 1 failure: 1) JsonFileEqualsJsonFile::testFailure Failed asserting that '{"Mascott":"Tux"}' matches JSON string "["Mascott", "Tux", "OS", "Linux"]". /home/sb/JsonFileEqualsJsonFileTest.php:5 FAILURES! Tests: 1, Assertions: 3, Failures: 1. ~~~