Question

I’m wondering how to go about testing this. Say I have a getter method, and I change the value in the process of a method. Here’s a simple example:

public function foo($model)
{
  var_dump($model->state());
  $model->state('saved');
  var_dump($model->state());
}

I mock the model like so:

$model = $this->getMock('Model');
$model->expects($this->any))
  ->method('state')
  ->will($this->returnValue('new'));

How should I setup the mock so that the second call returns a different value (saved)?

Answer 1

$model = $this->getMock('Model');
$model->expects($this->at(0))
  ->method('state')
  ->will($this->returnValue('new'));
$model->expects($this->at(1))
  ->method('state')
  ->will($this->returnValue('saved'));
$model->expects($this->exactly(2))
  ->method('state');

http://www.phpunit.de/manual/3.6/en/test-doubles.html#test-doubles.mock-objects

Plus you can additionally check with with() that the parameter passed equals to saved

->with($this->equalTo('saved'))

PS: this will work for

public function foo($model)
{
  var_dump($model->state());
  var_dump($model->state('saved'));
}

For your code you need to set up 3 mock calls, not 2