def test_grab(self):
native_support = sys.platform in ["darwin", "win32"]
if native_support or ImageGrab._has_imagemagick():
for args in [
{},
{"include_layered_windows": True},
{"all_screens": True},
{"bbox": (10, 20, 50, 80)},
]:
try:
im = ImageGrab.grab(**args)
except IOError as e:
if not native_support and str(e) == "Unable to open X server":
continue
else:
raise
assert_image(im, im.mode, (40, 60) if "bbox" in args else im.size)
else:
pytest.raises(IOError, ImageGrab.grab)
