public function testShouldCrop()
{
$resource = $this->getMockBuilder('Imanee\\ImageResource\\GDResource')->setMethods(['crop'])->getMock();
$resource->expects($this->once())->method('crop')->with(50, 50, 200, 200);
$this->model->setResource($resource);
$this->model->crop(50, 50, 200, 200);
}