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phpunit断言assertContainsOnlyInstancesOf

发布时间：2021-10-01 19:49:13编辑：雪饮阅读（）

 assertContainsOnlyInstancesOf断言用于断言一个堆中的所有实例类型都仅仅只是某个一个类型，而不是多个类型则断言成功，否则断言失败。

ContainsOnlyInstancesOfTest.php：
<?php declare(strict_types=1);
use PHPUnit\Framework\TestCase;
class Foo{}
class Bar{}
final class ContainsOnlyInstancesOfTest extends TestCase
{
    public function testFailure(): void
    {
        $this->assertContainsOnlyInstancesOf(Foo::class,[new Foo, new Bar,new Foo]);
    }
    public function testSuccess(): void
    {
        $this->assertContainsOnlyInstancesOf(Foo::class,[new Foo,new Foo]);
    }
}
运行结果：
C:\Users\Administrator>D:\phpstudy_pro\Extensions\php\php7.3.4nts\php.exe C:\Users\Administrator\PhpstormProjects\untitled\vendor\phpunit\phpunit\phpunit -c C:\Users\Administrator\PhpstormProjects\untitled\organizing\phpunit.xml C:\Users\Administrator\PhpstormProjects\untitled\organizing\tests\ContainsOnlyInstancesOfTest.php
PHPUnit 9.5.8 by Sebastian Bergmann and contributors.
 
F.                                                                  2 / 2 (100%)
 
Time: 00:00.008, Memory: 4.00 MB
 
There was 1 failure:
 
1) ContainsOnlyInstancesOfTest::testFailure
Failed asserting that Array &0 (
    0 => Foo Object &00000000401ec31b000000003822fdce ()
    1 => Bar Object &00000000401ec31c000000003822fdce ()
    2 => Foo Object &00000000401ec31d000000003822fdce ()
) contains only values of type "Foo".
 
C:\Users\Administrator\PhpstormProjects\untitled\organizing\tests\ContainsOnlyInstancesOfTest.php:9
 
FAILURES!
Tests: 2, Assertions: 2, Failures: 1.