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# encoding: utf-8
"""Unit test suite for docx.image.gif module"""
from __future__ import absolute_import, print_function
import pytest
from docx.compat import BytesIO
from docx.image.constants import MIME_TYPE
from docx.image.gif import Gif
from ..unitutil.mock import ANY, initializer_mock
class DescribeGif(object):
def it_can_construct_from_a_gif_stream(self, Gif__init__):
cx, cy = 42, 24
bytes_ = b'filler\x2A\x00\x18\x00'
stream = BytesIO(bytes_)
gif = Gif.from_stream(stream)
Gif__init__.assert_called_once_with(ANY, cx, cy, 72, 72)
assert isinstance(gif, Gif)
def it_knows_its_content_type(self):
gif = Gif(None, None, None, None)
assert gif.content_type == MIME_TYPE.GIF
def it_knows_its_default_ext(self):
gif = Gif(None, None, None, None)
assert gif.default_ext == 'gif'
# fixture components ---------------------------------------------
@pytest.fixture
def Gif__init__(self, request):
return initializer_mock(request, Gif)
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