def get_or_add_image_part(self, image_descriptor):
"""Return |ImagePart| object containing image identified by *image_descriptor*.
The image-part is newly created if a matching one is not present in the
collection.
"""
image = Image.from_file(image_descriptor)
matching_image_part = self._get_by_sha1(image.sha1)
if matching_image_part is not None:
return matching_image_part
return self._add_image_part(image)
def it_correctly_characterizes_known_images(self, known_image_fixture):
image_path, characteristics = known_image_fixture
ext, content_type, px_width, px_height, horz_dpi, vert_dpi = (
characteristics)
with open(test_file(image_path), 'rb') as stream:
image = Image.from_file(stream)
assert image.content_type == content_type
assert image.ext == ext
assert image.px_width == px_width
assert image.px_height == px_height
assert image.horz_dpi == horz_dpi
assert image.vert_dpi == vert_dpi
def dimensions_fixture(self, request):
image_file_path = test_file('monty-truth.png')
image = Image.from_file(image_file_path)
expected_cx, expected_cy = 1905000, 2717800
# case 1: image part is loaded by PartFactory w/no Image inst
if request.param == 'loaded':
partname = PackURI('/word/media/image1.png')
content_type = CT.PNG
image_part = ImagePart.load(partname, content_type, image.blob,
None)
# case 2: image part is newly created from image file
elif request.param == 'new':
image_part = ImagePart.from_image(image, None)
return image_part, expected_cx, expected_cy
def it_can_construct_from_an_image_file_like(self, from_filelike_fixture):
image_stream, _from_stream_, blob, image_ = from_filelike_fixture
image = Image.from_file(image_stream)
_from_stream_.assert_called_once_with(image_stream, blob, None)
assert image is image_
def it_can_construct_from_an_image_path(self, from_path_fixture):
image_path, _from_stream_, stream_, blob, filename, image_ = (
from_path_fixture)
image = Image.from_file(image_path)
_from_stream_.assert_called_once_with(stream_, blob, filename)
assert image is image_