def test_stub_deprecated():
class Handler:
opened = False
loaded = False
def open(self, im):
self.opened = True
def load(self, im):
self.loaded = True
return Image.new("RGB", (1, 1))
handler = Handler()
with pytest.warns(DeprecationWarning):
FitsStubImagePlugin.register_handler(handler)
with Image.open(TEST_FILE) as im:
assert im.format == "FITS"
assert im.size == (128, 128)
assert im.mode == "L"
assert handler.opened
assert not handler.loaded
im.load()
assert handler.loaded
FitsStubImagePlugin._handler = None
Image.register_open(
FitsImagePlugin.FitsImageFile.format,
FitsImagePlugin.FitsImageFile,
FitsImagePlugin._accept,
)
def test_save():
# Arrange
with Image.open(TEST_FILE) as im:
dummy_fp = None
dummy_filename = "dummy.filename"
# Act / Assert: stub cannot save without an implemented handler
with pytest.raises(OSError):
im.save(dummy_filename)
with pytest.raises(OSError):
FitsStubImagePlugin._save(im, dummy_fp, dummy_filename)
def test_invalid_file():
# Arrange
invalid_file = "Tests/images/flower.jpg"
# Act / Assert
with pytest.raises(SyntaxError):
FitsStubImagePlugin.FITSStubImageFile(invalid_file)
def test_invalid_file(self):
# Arrange
invalid_file = "Tests/images/flower.jpg"
# Act / Assert
self.assertRaises(
SyntaxError,
lambda: FitsStubImagePlugin.FITSStubImageFile(invalid_file))
def test_save(self):
# Arrange
im = Image.open(TEST_FILE)
dummy_fp = None
dummy_filename = "dummy.filename"
# Act / Assert: stub cannot save without an implemented handler
self.assertRaises(IOError, lambda: im.save(dummy_filename))
self.assertRaises(
IOError,
lambda: FitsStubImagePlugin._save(im, dummy_fp, dummy_filename))
def test_save(self):
# Arrange
im = Image.open(TEST_FILE)
dummy_fp = None
dummy_filename = "dummy.filename"
# Act / Assert: stub cannot save without an implemented handler
self.assertRaises(IOError, lambda: im.save(dummy_filename))
self.assertRaises(
IOError,
lambda: FitsStubImagePlugin._save(im, dummy_fp, dummy_filename))
def test_truncated_fits():
# No END to headers
image_data = b"SIMPLE = T" + b" " * 50 + b"TRUNCATE"
with pytest.raises(OSError):
FitsStubImagePlugin.FITSStubImageFile(BytesIO(image_data))
def test_invalid_file(self):
invalid_file = "Tests/images/flower.jpg"
self.assertRaises(
InvalidFileType,
lambda: FitsStubImagePlugin.FITSStubImageFile(invalid_file))