def it_can_construct_from_an_image_stream(self):
image_file_path = test_file('monty-truth.png')
with open(image_file_path, 'rb') as image_file_stream:
image = Image.from_file(image_file_stream)
assert isinstance(image, Image)
assert image.sha1 == '79769f1e202add2e963158b532e36c2c0f76a70c'
assert image.filename == 'image.png'
def get_or_add_image_part(self, image_descriptor):
"""
Return an |ImagePart| instance containing the image identified by
*image_descriptor*, 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_a_few_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.ext == ext
assert image.content_type == content_type
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_knows_the_extension_of_a_stream_based_image(self):
image_file_path = test_file('monty-truth.png')
with open(image_file_path, 'rb') as image_file_stream:
image = Image.from_file(image_file_stream)
assert image.ext == '.png'
def it_knows_the_extension_of_a_file_based_image(self):
image_file_path = test_file('monty-truth.png')
image = Image.from_file(image_file_path)
assert image.ext == '.png'
def it_can_construct_from_an_image_path(self):
image_file_path = test_file('monty-truth.png')
image = Image.from_file(image_file_path)
assert isinstance(image, Image)
assert image.sha1 == '79769f1e202add2e963158b532e36c2c0f76a70c'
assert image.filename == 'monty-truth.png'