def test_generate_preference(self, mock_get_image, mock_list_images,
mock_fit):
""" Test that a prefered placeholder image is chosen and
generated correctly. """
mock_list_images.return_value = ['source/02.jpg', ]
mock_fit.return_value = MagicMock()
form = PlaceholderForm({'height': '400', 'width': '400'})
form.is_valid()
form.generate(preference='02')
# Called with the right "random" image?
mock_get_image.assert_called_with('source/02.jpg')
# Called with the right dimensions to fit?
self.assertTrue((400, 400) in mock_fit.call_args[0])
def test_generate_random(self, mock_get_image, mock_list_images,
mock_fit, mock_choice):
""" Test that a random choice placeholder image is chosen and
generated correctly. """
mock_list_images.return_value = ['source/01.jpg', ]
mock_choice.return_value = 'source/01.jpg'
mock_fit.return_value = MagicMock()
form = PlaceholderForm({'height': '300', 'width': '200'})
form.is_valid()
form.generate()
# Called with the right "random" image?
mock_get_image.assert_called_with('source/01.jpg')
# Called with the right dimensions to fit?
self.assertTrue((300, 200) in mock_fit.call_args[0])
def test_init_oob_dimensions(self):
""" Test that out-of-bounds dimensions are handled correctly. """
form = PlaceholderForm({'height': '2001', 'width': '2001'})
self.assertFalse(form.is_valid())
def test_init_valid_fimensions(self):
""" Test that decimal width and height are valid """
form = PlaceholderForm({'height': '300', 'width': '200'})
self.assertTrue(form.is_valid())
def test_init_invalid_dimensions(self):
""" Test that invalid dimensions are handled correctly """
form = PlaceholderForm({'height': 'def', 'width': 'abc'})
self.assertFalse(form.is_valid())
