def _pil_props(self):
"""
A tuple containing useful image properties extracted from this image
using Pillow (Python Imaging Library, or 'PIL').
"""
stream = BytesIO(self._blob)
pil_image = PIL_Image.open(stream)
format = pil_image.format
width_px, height_px = pil_image.size
dpi = pil_image.info.get("dpi")
stream.close()
return (format, (width_px, height_px), dpi)
def macStyle_fixture(self):
bytes_ = b"xxxxyyyy....................................\xF0\xBA........"
stream = _Stream(BytesIO(bytes_))
offset, length = 0, len(bytes_)
head_table = _HeadTable(None, stream, offset, length)
expected_value = 61626
return head_table, expected_value
def from_stream_fixture(self, video_, from_blob_):
with open(TEST_VIDEO_PATH, "rb") as f:
blob = f.read()
movie_stream = BytesIO(blob)
mime_type = "video/mp4"
from_blob_.return_value = video_
return movie_stream, mime_type, blob, video_
def it_can_open_a_worksheet_in_a_context(self):
xlsx_file = BytesIO()
with WorkbookWriter._open_worksheet(xlsx_file) as worksheet:
assert isinstance(worksheet, Worksheet)
zipf = ZipFile(xlsx_file)
assert 'xl/worksheets/sheet1.xml' in zipf.namelist()
zipf.close
def it_constructs_ZipPkgReader_when_pkg_is_file_like(
self, _ZipPkgReader_, zip_pkg_reader_):
_ZipPkgReader_.return_value = zip_pkg_reader_
file_like_pkg = BytesIO(b"pkg-bytes")
phys_reader = _PhysPkgReader.factory(file_like_pkg)
_ZipPkgReader_.assert_called_once_with(file_like_pkg)
assert phys_reader is zip_pkg_reader_
def _poster_frame_image_file(self):
"""Return the image file for video placeholder image.
If no poster frame file is provided, the default "media loudspeaker"
image is used.
"""
poster_frame_file = self._poster_frame_file
if poster_frame_file is None:
return BytesIO(SPEAKER_IMAGE_BYTES)
return poster_frame_file
def it_can_write_a_blob(self, _zipf_prop_):
"""Integrates with zipfile.ZipFile."""
pack_uri = PackURI("/part/name.xml")
_zipf_prop_.return_value = zipf = zipfile.ZipFile(BytesIO(), "w")
pkg_writer = _ZipPkgWriter(None)
pkg_writer.write(pack_uri, b"blob")
members = {
PackURI("/%s" % name): zipf.read(name)
for name in zipf.namelist()
}
assert len(members) == 1
assert members[pack_uri] == b"blob"
def when_open_presentation_stream(context):
with open(test_pptx("test"), "rb") as f:
stream = BytesIO(f.read())
context.prs = Presentation(stream)
stream.close()
def when_save_presentation_to_stream(context):
context.stream = BytesIO()
context.prs.save(context.stream)
def when_I_add_the_stream_image_filename_using_add_picture(context, filename):
shapes = context.slide.shapes
with open(test_image(filename), "rb") as f:
stream = BytesIO(f.read())
shapes.add_picture(stream, Inches(1.25), Inches(1.25))
def when_open_presentation_stream(context):
with open(test_pptx('test'), 'rb') as f:
stream = BytesIO(f.read())
context.prs = Presentation(stream)
stream.close()
def from_stream_fixture(self, from_blob_, image_):
with open(test_image_path, 'rb') as f:
blob = f.read()
image_file = BytesIO(blob)
from_blob_.return_value = image_
return image_file, blob, image_