def assert_resize_image(self,
filename,
width,
height,
mode,
expected_width=None,
expected_height=None):
if expected_width == None: expected_width = width
if expected_height == None: expected_height = height
filename = self.get_test_image_path(filename)
ext = get_ext(filename)
dst_filename = os.path.join(tempfile.gettempdir(),
'resized_image.%s' % ext)
resize_image(filename, dst_filename, width, height, mode)
self.assertTrue(os.path.isfile(dst_filename), 'file exists')
self.assertTrue(is_image(dst_filename), 'is image file')
# check image size
size = get_image_size(dst_filename)
self.assertEqual(
size[0], expected_width,
'expected image width of %d, but was %d.' %
(expected_width, size[0]))
self.assertEqual(
size[1], expected_height,
'expected image height of %d, but was %d.' %
(expected_height, size[1]))
def test_should_return_false_if_extension_is_pdf(self):
self.assertFalse(is_image(self.get_test_image_path('test.pdf')))
def test_should_return_false_for_non_images(self):
self.assertFalse(is_image(self.get_test_image_path('test.txt')))
def test_should_return_true_for_images(self):
for image in TEST_IMAGES:
self.assertTrue(is_image(self.get_test_image_path(image.filename)))