I have a PHPUnit_Framework_MockObject_MockObject of a Logger.
In a unit test, I do not want a call to the warn method to happen with a specific string parameter doNotCallMeWithThisString.
I have come this far:
public function testThis()
{
...
$logger = $this->getMockLogger();
$logger->expects($this->exactly(0))->method('warn')->with(
$this->equalTo('doNotCallMeWithThisString')
);
...
}
Yet this fails because exactly(0) marks any call to the warn method as an error even is the string parameter is somethingEntirelyUnrelated.
How can I tell the mock object that any call to warn is fine unless it is called with that specific string?
the exactly() method is for asserting how many times an mocked method will be called. Unless you are using $this->at() for the mocked behavior, you don't specify the arguments for a specific call. exactly(0) says that the number of calls should be 0.
Change your mock to this:
$logger->expects($this->any()) //Or however many times it should be called
->method('warn')
->with(
$this->callback(function($argument) {
return $argument !== 'doNotCallMeWithThisString';
})
)
);
This uses a callback to check the argument passed to the mocked method and validates that it isn't equal to your string.
The PHPUnit documentation has the constraint types that you can use to verify the arguments of a mock. At this time, it doesn't have a string not equals type. But using the callback, you can make your own. Your callback just needs to check the argument used and returns true if it is ok and false if it isn't.
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