cakephp 2.6 controller test case throwing MissingActionException on duplicate testAction()-call - unit-testing

Question

I hope anyone can help me out with my testing environment.
my setup
I am implementing unit tests based on phpunit 3.7.22 with the cake release 2.6.9. Running on ubuntu 12.04 LTS with PHP 5.4.43-1 and postgresql 9.1.
I immplemented controller tests mocking cakes Auth Component to have a user in the session, since my tests depent on that. My controllers return json results, since its an API for a JS-based frontend. I call my controller methods using the testAction() call of a generated controller.
<?php
App::uses('RequesttypesController', 'Svc.Controller');
class RequesttypesWithResultControllerTest extends ControllerTestCase
{
public $fixtures = array(
'app.requesttype',
'app.user',
'app.privilege',
'app.groupsprivilege',
'app.groupsuser',
'app.groupscompany',
'app.company',
);
/**
* Mock the requesttype object so that it can return results depending on the desired outcome
*
* #see CakeTestCase::setUp()
*/
public function setUp()
{
parent::setUp();
$this->controller = $this->generate('Svc.Requesttypes', array(
'models' => array(
'Requesttype'
),
'components' => array(
'Auth' => array(
'user'
),
'Session',
'RequestHandler'
)
));
$this->controller->Auth->staticExpects($this->any())
->method('user')
->will($this->returnValue(array(
'id' => 123,
'username' => 'myTestUser',
'company' => 'myTestCompany',
'usertype_id' => '456',
))
);
$authResult = $this->controller->Auth->user();
}
public function tearDown()
{
parent::tearDown();
unset($this->controller);
}
/**
* A logged in user produces a number of requesttypes
*/
public function testLoggedInUser()
{
$result = $this->testAction('/svc/requesttypes/getMyRequesttypes', array('return' => 'vars'));
$this->assertNotEmpty($this->vars, 'Did not receive webservice response');
$this->assertTrue(isset($this->vars['data']['code']), 'Received invalid webservice response');
$this->assertEqual($this->vars['data']['code'], SvcAppController::RESPONSE_CODE_SUCCESS);
}
}
?>
This test passes without errors. Now I want to test my controller-action with different setups, for example users with a different usertype, from a different company, and so on. If I now create a second test-method in my RequesttypesWithResultControllerTest-class, calling the same testAction-url, i get a MissingActionException saying:
"Action RequesttypesController::() could not be found."
It seems that the testAction calls an empty controller-action, even if the action-url is passed as a parameter. I tried reinitializing the controller by nulling it and calling $this->generate() again, but this does not help either.
Of course I can help myself out by creating an own test-controller for every test ending up in a bunch of duplicate test-code, but this somehow seems not right to me.
Am I misusing the test-environment or how can this exception be explained? Any ideas?
Thanks in advance for sharing my headache!

Answer 1

After some further code debugging we finally found the error. We accidently changed the require statement of the last line of the /Config/routes.php file to a require_once because of some "Class already defined Exceptions" thrown in the test-environment.
Wrong routes.php:
require_once CAKE . 'Config' . DS . 'routes.php';
For the application itself that made no difference, since the routes are only needed to be initialized once per request. But in a test-environment, the routes are reinitialized several times, which was not possible anymore with the require_once include.
This is how the line is supposed to look like, which it does by default:
Correct routes.php:
require CAKE . 'Config' . DS . 'routes.php';