public function testThatGetCollectionItemsReturnsWhichIsReturnedByTheRepository()
 {
     $expected = array(array('id' => 1), array('id' => 1));
     $collectionRepositoryMock = Mockery::mock('App\\Repositories\\CollectionRepository');
     $collectionRepositoryMock->shouldReceive('getItemsOf')->with('hams')->andReturn($expected);
     $collectionService = new CollectionService($collectionRepositoryMock);
     $returned = $collectionService->getCollectionItems('hams');
     $this->assertEquals($expected, $returned);
 }