public function testCanFormatAnImagesModelWithSomefields()
{
$image = $this->getMock('Imbo\\Model\\Image');
$image->expects($this->never())->method('getAddedDate');
$image->expects($this->never())->method('getUpdatedDate');
$images = [$image];
$model = $this->getMock('Imbo\\Model\\Images');
$model->expects($this->once())->method('getImages')->will($this->returnValue($images));
$fields = ['size', 'width', 'height'];
$model->expects($this->once())->method('getFields')->will($this->returnValue($fields));
$xml = $this->formatter->format($model);
$this->assertContains('<images><image><size></size><width></width><height></height></image></images>', $xml);
}