How can I get PHPUnit MockObjects to return different values based on a parameter?

Question

I\'ve got a PHPUnit mock object that returns \'return value\' no matter what its arguments:

// From inside a test...
$mock = $this->getMock(\         


        

Answer 1

You would probably want to do a callback in a OOP fashion:

getMock('class_name', array('method_to_mock'));
        $object->expects($this->any())
            ->method('method_to_mock')
            ->will($this->returnCallback(array($this, 'returnCallback'));

        $object->returnAction('param1');
        // assert what param1 should return here

        $object->returnAction('param2');
        // assert what param2 should return here
    }

    public function returnCallback()
    {
        $args = func_get_args();

        // process $args[0] here and return the data you want to mock
        return 'The parameter was ' . $args[0];
    }
}
?>