Mockery 中的重载和别名有什么区别?

2022-01-25 00:00:00 tdd php phpunit mockery

我不熟悉使用 Mockery 并与术语 alias 和 混淆>重载.谁能给我解释一下什么时候用哪个?

I am new to using Mockery and confused with the terminology alias and overload. Can anyone please explain to me when to use which?

推荐答案

Overload 用于创建实例模拟".当创建一个类的新实例时，这将拦截"并且将使用模拟.例如，如果要测试此代码:

Overload is used to create an "instance mock". This will "intercept" when a new instance of a class is created and the mock will be used instead. For example if this code is to be tested: 

class ClassToTest {

    public function methodToTest()
    {
        $myClass = new MyClass();
        $result = $myClass->someMethod();
        return $result;
    }
}

您将使用 overload 创建一个实例模拟，并像这样定义期望:

You would create an instance mock using overload and define the expectations like this:

 public function testMethodToTest()
 {
     $mock = Mockery::mock('overload:MyClass');
     $mock->shouldreceive('someMethod')->andReturn('someResult');

     $classToTest = new ClassToTest();
     $result = $classToTest->methodToTest();

     $this->assertEquals('someResult', $result);
 }

Alias 用于模拟公共静态方法.例如，如果要测试此代码:

Alias is used to mock public static methods. For example if this code is to be tested:

class ClassToTest {

    public function methodToTest()
    {
        return MyClass::someStaticMethod();
    }
}

您将使用 alias 创建一个别名模拟，并像这样定义期望:

You would create an alias mock using alias and define the expectations like this:

public function testNewMethodToTest()
{
    $mock = Mockery::mock('alias:MyClass');
    $mock->shouldreceive('someStaticMethod')->andReturn('someResult');

    $classToTest = new ClassToTest();
    $result = $classToTest->methodToTest();

    $this->assertEquals('someResult', $result);
}

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