assertInstanceOf()

assertInstanceOf($expected, $actual[, $message = ''])

当 $actual 不是 $expected 的实例时报告错误，错误讯息由 $message 指定。

assertNotInstanceOf() 是与之相反的断言，接受相同的参数。

assertAttributeInstanceOf() 和 assertAttributeNotInstanceOf() 是便捷包装(convenience wrapper)，可以应用于某个类或对象的某个 public、protected 或 private 属性。

Example A.24. assertInstanceOf() 的用法

<?php
class InstanceOfTest extends PHPUnit_Framework_TestCase
{
    public function testFailure()
    {
        $this->assertInstanceOf('RuntimeException', new Exception);
    }
}
?>

phpunit InstanceOfTest

PHPUnit 5.0.0 by Sebastian Bergmann and contributors.

F

Time: 0 seconds, Memory: 5.00Mb

There was 1 failure:

1) InstanceOfTest::testFailure
Failed asserting that Exception Object (...) is an instance of class "RuntimeException".

/home/sb/InstanceOfTest.php:6

FAILURES!
Tests: 1, Assertions: 1, Failures: 1.