def _resize(self, resp):
image = Image(resp.buffer, self.settings)
opts = self._get_resize_options()
resized = image.resize(
self.get_argument("w"), self.get_argument("h"), **opts)
self._forward_headers(resp.headers)
for block in iter(lambda: resized.read(65536), b""):
self.write(block)
resized.close()
def _assert_expected_resize(self, case):
with open(case["source_path"], "rb") as f:
img = Image(f).resize(case["width"],
case["height"],
mode=case["mode"],
background=case.get("background"),
filter=case.get("filter"),
position=case.get("position"),
quality=case.get("quality"))
with open(case["expected_path"], "rb") as expected:
msg = "%s does not match %s" \
% (case["source_path"], case["expected_path"])
self.assertEqual(img.read(), expected.read(), msg)
def _process_response(self, resp):
ops = self._get_operations()
if "noop" in ops:
return (resp.buffer, None)
image = Image(resp.buffer)
for operation in ops:
if operation == "resize":
self._image_resize(image)
elif operation == "rotate":
self._image_rotate(image)
elif operation == "region":
self._image_region(image)
return (self._image_save(image), image.img.format)
def test_bad_format(self):
path = os.path.join(DATADIR, "test-bad-format.gif")
with open(path, "rb") as f:
image = Image(f)
self.assertRaises(FormatError, image.resize, 100, 100)
