# assertObjectHasAttribute() >[info] ## assertObjectHasAttribute(string $attributeName, object $object[, string $message = '']) 当 `$object->attributeName` 不存在时报告错误，错误讯息由 `$message` 指定。 `assertObjectNotHasAttribute()` 是与之相反的断言，接受相同的参数。 **Example A.33. assertObjectHasAttribute() 的用法** ~~~ <?php class ObjectHasAttributeTest extends PHPUnit_Framework_TestCase { public function testFailure() { $this->assertObjectHasAttribute('foo', new stdClass); } } ?> ~~~ ~~~ phpunit ObjectHasAttributeTest PHPUnit 5.0.0 by Sebastian Bergmann and contributors. F Time: 0 seconds, Memory: 4.75Mb There was 1 failure: 1) ObjectHasAttributeTest::testFailure Failed asserting that object of class "stdClass" has attribute "foo". /home/sb/ObjectHasAttributeTest.php:6 FAILURES! Tests: 1, Assertions: 1, Failures: 1. ~~~