phpunit：为什么这个assertContains会通过？

Question

我的测试应该失败，但它通过了：

public function test_getValidProviderCodes(){
    $aTest = PRIDE\Reflection::executeStaticMethodForClassName(Apps_DoctorsReports::class, "getValidProviderCodes");
    print_r($aTest);
    $this->assertContains("xxxxxxxxxxxxxx", $aTest);
}

输出：

Testing started at 8:53 AM ...
PHPUnit 4.6.6 by Sebastian Bergmann and contributors.

Configuration read from C:\inetpub\Intranet_Local\phpunit\phpunit.xml

Array
(
    [0] => 0
    [1] => 1
    [2] => 2
    [3] => MAYER
    [4] => MAY00
    [5] => MAYERIC
    [6] => COH00
    [7] => COH01
    [8] => POWELL
    [9] => POW00
    [10] => JOHN00
    [11] => FINO
    [12] => POL01
    [13] => NONAP
    [14] => RAYE00
    [15] => HOPS00
    [16] => CHAH00
)
 - 


Time: 1.24 seconds, Memory: 8.25Mb

OK (1 test, 1 assertion)

该值"xxxxxxxxxxxxxx"显然不在该数组中。我已经使用这个函数数百次了，但从未见过这种行为。

（如果我更改$aTest为[]，测试就会失败。）

---

这是另一个测试运行：

public function test_getValidProviderCodes(){
    $aTest = PRIDE\Reflection::executeStaticMethodForClassName(Apps_DoctorsReports::class, "getValidProviderCodes");
    $this->assertContains("S01", implode(", ", $aTest));
}

输出：

Testing started at 9:04 AM ...
PHPUnit 4.6.6 by Sebastian Bergmann and contributors.

Configuration read from C:\inetpub\Intranet_Local\phpunit\phpunit.xml


Failed asserting that '0, 1, 2, M01, M03, M04, M05, N02, C01, C02, C03, C04, P01, P02, P03, P04, P05, P06, P07, R01, H01, J01, J02' contains "S01".
 C:\inetpub\Intranet_Local\phpunit\library\classes\apps\DoctorsReportsTest.php:61



Time: 1.54 seconds, Memory: 8.75Mb


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

Answer 1

还可以assertContains检查对象身份（默认行为）。因此，要跳过此操作，您需要向该方法传递一个可选标志。这个问题已经在 github 上介绍过了。

因此，要使测试失败，只需将最后一个可选参数的checkForNonObjectIdentity值传递true如下：

public function test_getValidProviderCodes(){

    $aTest =
        array(
            0,1,2,'MAYER'
        );
    print_r($aTest);
    $this->assertContains(
        "xxxxxxxxxxxxxx",
        $aTest,
        'message',
        false,true,true);

}

输出：

无法断言数组包含“xxxxxxxxxxxxxxx”。

希望这有帮助