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phpunit已上桩方法返回桩件自身引用的断言-returnSelf

发布时间：2021-09-22 14:25:00编辑：雪饮阅读（）

 用returnSelf方法返回值传递给桩件的will连贯操作上可以使得被测试的方法返回桩件本身的引用。

DatabaseTest.php：
<?php declare(strict_types=1);
use PHPUnit\Framework\TestCase;

final class DatabaseTest extends TestCase
{
    public function testReturnSelf(): void
    {
        // 创建桩件。
        $stub = $this->createStub(Database::class);

        // 配置桩件。
        $stub->method('doSomething')
            ->will($this->returnSelf());

        // $stub->doSomething() 返回 $stub
        var_dump($stub->doSomething());
        $this->assertSame($stub, $stub->doSomething());
    }
}
C:\Users\Administrator\PhpstormProjects\untitled\organizing>D:\phpstudy_pro\Extensions\php\php7.3.4nts\php.exe D:\phpstudy_pro\Extensions\php\php7.3.4nts\phpunit-9.5.8.phar C:\Users\Administrator\PhpstormProjects\untitled\organizing\tests\DatabaseTest.php
PHPUnit 9.5.8 by Sebastian Bergmann and contributors.
 
.                                                                   1 / 1 (100%)C:\Users\Administrator\PhpstormProjects\untitled\organizing\tests\DatabaseTest.php:16:
class Mock_Database_aebcd000#55 (3) {
 private $__phpunit_originalObject =>
 NULL
 private $__phpunit_returnValueGeneration =>
 bool(true)
 private $__phpunit_invocationMocker =>
 class PHPUnit\Framework\MockObject\InvocationHandler#52 (5) {
    private $matchers =>
    array(1) {
      [0] =>
      class PHPUnit\Framework\MockObject\Matcher#58 (6) {
        ...
      }
    }
    private $matcherMap =>
    array(0) {
    }
    private $configurableMethods =>
    array(1) {
      [0] =>
      class PHPUnit\Framework\MockObject\ConfigurableMethod#56 (2) {
        ...
      }
    }
    private $returnValueGeneration =>
    bool(true)
    private $deferredError =>
    NULL
 }
}
 
 
Time: 00:00.004, Memory: 20.00 MB
 
OK (1 test, 1 assertion)