def test_thumbnail_creation(self):
data = 'big_image_data'
compressed_data = 'cmprsd_data'
image = Image.create(data=data)
mock_service_image = mock()
when(images).Image(blob_key=image.blob_key).thenReturn(mock_service_image)
when(mock_service_image).execute_transforms(output_encoding = images.JPEG).thenReturn(compressed_data)
options = Options(dict(width=420))
thumbnail = Image.thumbnail(image.short_key, options)
verify(mock_service_image).resize(width=420)
self.assertEqual(compressed_data, read_blob(thumbnail.blob_key))
self.assertEqual(thumbnail.key, key.Key(Image, options.key, parent = image.key))
original_blob_key = thumbnail.blob_key
thumbnail = Image.thumbnail(image.short_key, options)
self.assertEqual(original_blob_key, thumbnail.blob_key)
def thumbnail(self):
return Image.thumbnail(self.key, self.options)
