public function testDeleteFails()
 {
     $key = $this->user->pkis->first();
     $count = Pki::count();
     $this->delete('delete_key', array(), array('id' => 568), array('user' => $this->user->id));
     $this->assertEquals($count, Pki::count(array('cache' => false)));
     $this->assertRedirect(url_for('UserController', 'edit'));
 }