测试是否使用某些参数调用了该方法 [英] Test that method is called with some parameters, among others

问题描述

我正在用phpunit测试方法，并且出现以下情况:

I'm testing a method with phpunit and I have the following scenario:

• 方法"setParameter"被称为未知次数
• 'setParameter'方法使用不同种类的参数调用
• 必须使用一组参数调用各种参数方法"setParameter".

我尝试过这种方式:

$mandatoryParameters = array('param1', 'param2', 'param3');
foreach ($mandatoryParameters as $parameter) {
    $class->expects($this->once())
        ->method('setParameter')
        ->with($parameter);
}

不幸的是，测试失败，因为在用这些参数调用方法之前，它也用其他参数调用了.我得到的错误是:

Unfortunately the test failed because before method is called with these parameters it is called with other parameters too. The error i get is:

Parameter 0 for invocation Namespace\Class::setParameter('random_param', 'random_value')
does not match expected value.
Failed asserting that two strings are equal.

推荐答案

尝试使用$this->at()方法.每次循环时，您都将覆盖模拟.

Try using the $this->at() method. You are overwriting your mock each time with your loop.

$mandatoryParameters = array('param1', 'param2', 'param3');
$a = 0;
foreach ($mandatoryParameters as $parameter) {
    $class->expects($this->at($a++);
        ->method('setParameter')
        ->with($parameter);
}

这会将您的模拟设置为期望setParameter被调用一定的次数，并且每次调用将使用不同的参数.您将需要知道哪个调用特定于您的参数，并相应地调整编号.如果调用不是连续的，则可以为每个参数设置一个索引.

This will set your mock to expect setParameter to be called a certain number of times and each call will be with a different parameter. You will need to know which call is the specific on for your parameters and adjust the number accordingly. If the calls are not sequential, you can set a key for which index each param.

$mandatoryParameters = array(2 =>'param1', 5 => 'param2', 6 => 'param3');

foreach ($mandatoryParameters as $index => $parameter) {
    $class->expects($this->at($index);
        ->method('setParameter')
        ->with($parameter);
}

索引是从零开始的，因此请记住从0开始而不是从1开始计数.

The index is zero based so remember to start your counting from 0 rather than 1.

http://phpunit.de/manual/current/en/phpunit-book.html#test-doubles.mock-objects.tables.matchers

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