def test_pngcrush_image_is_called(self, mock_move):
expected_suffix = '.opti.png'
tmp_src = tempfile.NamedTemporaryFile(suffix='.png', delete=False)
tmp_dest = os.path.splitext(tmp_src.name)[0] + expected_suffix
open(tmp_dest, 'w').write(open(self.img_path).read())
with mock.patch('tempfile.NamedTemporaryFile',
lambda *a, **k: tmp_src):
rval = tasks.pngcrush_image(self.img_path)
# pngcrush_image copies the stored file to a local tempfile.
eq_(open(tmp_src.name).read(), open(self.img_path).read())
expected_cmd = [
'pngcrush', '-q', '-rem', 'alla', '-brute', '-reduce', '-e',
expected_suffix, tmp_src.name
]
# pngcrush_image incokes pngcrush with the tempfile name and writes to
# another tempfile.
self.mock_popen.assert_called_once_with(expected_cmd,
stdin=subprocess.PIPE,
stderr=subprocess.PIPE,
stdout=subprocess.PIPE)
# The output file is then copied back to storage.
mock_move.assert_called_once_with(tmp_dest,
self.img_path,
dest_storage=public_storage,
src_storage=local_storage)
eq_(rval, {'image_hash': 'bb362450'})
def test_pngcrush_image_is_called(self, mock_move):
expected_suffix = '.opti.png'
tmp_src = tempfile.NamedTemporaryFile(suffix='.png', delete=False)
tmp_dest = os.path.splitext(tmp_src.name)[0] + expected_suffix
copy_stored_file(self.img_path, tmp_dest, src_storage=public_storage,
dst_storage=local_storage)
with mock.patch('tempfile.NamedTemporaryFile',
lambda *a, **k: tmp_src):
rval = tasks.pngcrush_image(self.img_path)
# pngcrush_image copies the stored file to a local tempfile.
eq_(open(tmp_src.name).read(),
public_storage.open(self.img_path).read())
expected_cmd = ['pngcrush', '-q', '-rem', 'alla', '-brute', '-reduce',
'-e', expected_suffix, tmp_src.name]
# pngcrush_image incokes pngcrush with the tempfile name and writes to
# another tempfile.
self.mock_popen.assert_called_once_with(
expected_cmd, stdin=subprocess.PIPE, stderr=subprocess.PIPE,
stdout=subprocess.PIPE)
# The output file is then copied back to storage.
mock_move.assert_called_once_with(tmp_dest, self.img_path,
dst_storage=public_storage,
src_storage=local_storage)
eq_(rval, {'image_hash': 'bb362450'})
def test_set_modified(self, mock_move, update_mock):
"""Test passed instance is updated with the hash."""
name = self.src.name
obj = app_factory()
ret = tasks.pngcrush_image(name, 'some_hash', set_modified_on=[obj])
ok_('some_hash' in ret)
eq_(update_mock.call_args_list[-1][1]['some_hash'], ret['some_hash'])
ok_('modified' in update_mock.call_args_list[-1][1])
def test_pngcrush_image_is_called(self, mock_move):
name = self.src.name
expected_suffix = '.opti.png'
expected_cmd = ['pngcrush', '-q', '-rem', 'alla', '-brute', '-reduce',
'-e', expected_suffix, name]
rval = tasks.pngcrush_image(name)
self.mock_popen.assert_called_once_with(
expected_cmd, stdin=subprocess.PIPE, stderr=subprocess.PIPE,
stdout=subprocess.PIPE)
mock_move.assert_called_once_with(
'%s%s' % (os.path.splitext(name)[0], expected_suffix), name)
eq_(rval, {'image_hash': 'bb362450'})
def test_set_modified(self, mock_move):
"""Test passed instance is updated with the hash."""
name = self.src.name
instance_mock = mock.Mock()
update_mock = mock.Mock()
instance_mock.update = update_mock
ret = tasks.pngcrush_image(name, 'some_hash',
set_modified_on=[instance_mock])
ok_('some_hash' in ret)
eq_(update_mock.call_args_list[0][1]['some_hash'], ret['some_hash'])
ok_('modified' in update_mock.call_args_list[0][1])
def test_set_modified(self, mock_move, update_mock):
"""Test passed instance is updated with the hash."""
expected_suffix = '.opti.png'
tmp_src = tempfile.NamedTemporaryFile(suffix='.png', delete=False)
tmp_dest = os.path.splitext(tmp_src.name)[0] + expected_suffix
open(tmp_dest, 'w').write(open(self.img_path).read())
with mock.patch('tempfile.NamedTemporaryFile',
lambda *a, **k: tmp_src):
obj = app_factory()
ret = tasks.pngcrush_image(self.img_path, 'some_hash',
set_modified_on=[obj])
ok_('some_hash' in ret)
eq_(update_mock.call_args_list[-1][1]['some_hash'], ret['some_hash'])
ok_('modified' in update_mock.call_args_list[-1][1])
def test_set_modified(self, mock_move, update_mock):
"""Test passed instance is updated with the hash."""
expected_suffix = '.opti.png'
tmp_src = tempfile.NamedTemporaryFile(suffix='.png', delete=False)
tmp_dest = os.path.splitext(tmp_src.name)[0] + expected_suffix
open(tmp_dest, 'w').write(open(self.img_path).read())
with mock.patch('tempfile.NamedTemporaryFile',
lambda *a, **k: tmp_src):
obj = app_factory()
ret = tasks.pngcrush_image(self.img_path,
'some_hash',
set_modified_on=[obj])
ok_('some_hash' in ret)
eq_(update_mock.call_args_list[-1][1]['some_hash'], ret['some_hash'])
ok_('modified' in update_mock.call_args_list[-1][1])
def test_set_modified(self):
"""Test passed instance is updated with the hash."""
src_crushed = tempfile.NamedTemporaryFile(mode='r+w+b', suffix=".png",
delete=False)
shutil.copyfile(self.src.name, src_crushed.name)
instance_mock = mock.Mock()
update_mock = mock.Mock()
instance_mock.update = update_mock
ret = tasks.pngcrush_image(src_crushed.name, 'some_hash',
set_modified_on=[instance_mock])
ok_('some_hash' in ret)
eq_(update_mock.call_args_list[0][1]['some_hash'], ret['some_hash'])
ok_('modified' in update_mock.call_args_list[0][1])
def test_pngcrush_image_is_optimized(self):
src_crushed = tempfile.NamedTemporaryFile(mode='r+w+b', suffix=".png",
delete=False)
shutil.copyfile(self.src.name, src_crushed.name)
rval = tasks.pngcrush_image(src_crushed.name)
ok_(rval)
crushed_size = os.path.getsize(src_crushed.name)
orig_size = os.path.getsize(self.src.name)
assert crushed_size < orig_size
orig_image = Image.open(self.src.name)
crushed_image = Image.open(src_crushed.name)
eq_(ImageChops.difference(crushed_image, orig_image).getbbox(), None)
os.remove(src_crushed.name)