'Tests behavior when image is not passed in constructor.'

def test_image_after_constructor(self):

    p = self.PersonModel(name='Joe')
    self.assertIsInstance(p.mugshot, TestImageFieldFile)
    self.assertFalse(p.mugshot)
    p = self.PersonModel(name='Joe')
    p.mugshot = self.file1
    self.check_dimensions(p, 4, 8)
