Cakephp mock Email Utility - unit-testing

Question

i'm a little stuck trying to test my users-controller in cakephp,
i have an action wich sends an email to a certain email address.
The email utility works, no problem whatsoever.
I want to mock the email utility so that when i test the action (with "testAction"),
no email will be sent.
I already searched all over stackoverflow and tried a lot of solutions, the current code is like follows:
UsersController:
/**
* Get Email Utility, use method so that unit testing is possible
* #return object
*/
public function _getEmailer()
{
return new CakeEmail();
}
public function lostPassword()
{
if($this->request->is('post'))
{
$email = $this->request->data['User']['email'];
$this->User->recursive = -1;
$user = $this->User->find('first', array('conditions' => array('email' => $email)));
if(!$user)
{
$this->Session->setFlash('Error: user not found');
return $this->render();
}
$recoverTrials = $this->User->Recover->find('count', array('conditions' => array('email' => $email)));
if($recoverTrials > 3)
{
$this->Session->setFlash(__('message.recover-too-many'));
return $this->redirect('/');
}
// Generate random key to reset password
$key = md5(microtime().rand());
$data = array('user_id' => $user['User']['id'],
'key' => $key,
'active' => 1,
'created' => date('Y-m-d H:i:s'));
if(!$this->User->Recover->save($data))
{
$this->Session->setFlash('Error while sending the recovery-mail');
return $this->redirect('/');
}
$this->Email = $this->_getEmailer();
$this->Email->emailFormat('html');
$this->Email->to($email);
$this->Email->subject('Password recover');
$this->Email->replyTo('noreply#domain.com');
$this->Email->from(array('noreply#domain.com' => 'Sender ID'));
$this->Email->template('recover');
$this->Email->viewVars(array('key' => $key)); // Set variables for template
try
{
$this->Email->send();
}
catch(Exception $e)
{
$this->Session->setFlash('Error while sending the recovery-mail');
return $this->render();
}
$this->Session->setFlash('The recovery mail with instructions to reset your password has been sent. Please note that the link will only remain active for 2 hours.');
return $this->redirect('/');
}
}
And my test class looks like (excerpt):
public function testPostLostPassword()
{
$this->Controller = $this->generate('Users', array(
'methods' => array(
'_getEmailer'
),
'components' => array('Security')
));
$emailer = $this->getMock('CakeEmail', array(
'to',
'emailFormat',
'subject',
'replyTo',
'from',
'template',
'viewVars',
'send'
));
$emailer->expects($this->any())
->method('send')
->will($this->returnValue(true));
$this->Controller->expects($this->any())
->method('_getEmailer')
->will($this->returnValue($emailer));
Correct email
$data = array('User' => array('email' => 'me#domain.com'));
$result = $this->testAction('/lostPassword', array('method' => 'post',
'data' => $data,
'return' => 'contents'));
}
What am i doing wrong? The Email utility still sends out the email to my address, even though i mocked it...
Thanks in advance!