Laravel 嘲笑没有匹配的关闭处理程序

TL;DR: your closure argument to Mockery::on needs to return true or false.

The longer explanation:

问题是你打Mockery::on.此方法将闭包(或其他函数)作为参数.该闭包应该返回true或false，这取决于闭包的参数是否满足测试.

That was a rather confusing explanation, so I'll try an example :-)

Consider the following expectation:

$mock = Mockery::mock("myclass");
$mock->shouldReceive("mymethod")
    ->with("myargument")
    ->once()
    ->andReturn("something");

如果被测系统(SUT)调用

$x = $myclass->mymethod("myargument");

and the value of $x will be "something".

现在，mockery的开发者意识到有一些他们根本无法满足的期望.例如(这是让我绊倒了一段时间的事情)，一个闭合.事实证明，PHP中的闭包是一种复杂的内部资源，即使您以相同的方式定义两个闭包，它们也不会相同.请考虑:

$x = function($v){ echo $v; };
$y = function($v){ echo $v; };

echo $x==$y ? "True" : "False";

将响应值"False".为什么？从我对这个主题的有限理解来看，它与PHP中闭包对象的内部表示有关.所以，当你模拟一个需要闭包作为参数的方法时，there is no way to satisfy the expectation.

Mockery::on()方法提供了一种解决方法.使用此方法，您可以向mockry传递一个(不同的)闭包，该闭包的计算结果为true或false，这取决于your个测试是否显示您有正确的参数.举个例子:

假设myclass::mymethod需要一个闭包作为参数.无论在SUT中传递给mymethod的闭包是什么，以下操作都将始终失败:

$mock = Mockery::mock("myclass");
$mock->shouldReceive("mymethod")
    ->with(function($v){ echo $v; })
    ->once()
    ->andReturn("something");

This is because Mockery will compare the argument passed in the SUT (a closure) to the closure defined above (function($v){ echo $v; }) and that test will fail, even if the two closures are identically defined.

使用Mockery::on()，您可以按如下方式重写测试:

$mock = Mockery::mock("myclass");
$mock->shouldReceive("mymethod")
    ->with(Mockery::on(function($value){
        return is_callable($value);
    }))
    ->once()
    ->andReturn("something");

Now when Mockery evaluates the expectation, it will call the closure passed as the argument to Mockery::on(). If it returns true, Mockery will consider the expectation passed; if it returns false, Mockery will consider it as having failed.

The expectation in this example will pass for any closure that is passed to myclass::mymethod, which is probably not specific enough. You probably want a more sophisticated test, but that's the basic idea.