import pytest from PIL import FliImagePlugin, Image from .helper import assert_image_equal_tofile, is_pypy # created as an export of a palette image from Gimp2.6 # save as...-> hopper.fli, default options. static_test_file = "Tests/images/hopper.fli" # From https://samples.libav.org/fli-flc/ animated_test_file = "Tests/images/a.fli" def test_sanity(): with Image.open(static_test_file) as im: im.load() assert im.mode == "P" assert im.size == (128, 128) assert im.format == "FLI" assert not im.is_animated with Image.open(animated_test_file) as im: assert im.mode == "P" assert im.size == (320, 200) assert im.format == "FLI" assert im.info["duration"] == 71 assert im.is_animated @pytest.mark.skipif(is_pypy(), reason="Requires CPython") def test_unclosed_file(): def open(): im = Image.open(static_test_file) im.load() pytest.warns(ResourceWarning, open) def test_closed_file(): with pytest.warns(None) as record: im = Image.open(static_test_file) im.load() im.close() assert not record def test_context_manager(): with pytest.warns(None) as record: with Image.open(static_test_file) as im: im.load() assert not record def test_tell(): # Arrange with Image.open(static_test_file) as im: # Act frame = im.tell() # Assert assert frame == 0 def test_invalid_file(): invalid_file = "Tests/images/flower.jpg" with pytest.raises(SyntaxError): FliImagePlugin.FliImageFile(invalid_file) def test_n_frames(): with Image.open(static_test_file) as im: assert im.n_frames == 1 assert not im.is_animated with Image.open(animated_test_file) as im: assert im.n_frames == 384 assert im.is_animated def test_eoferror(): with Image.open(animated_test_file) as im: n_frames = im.n_frames # Test seeking past the last frame with pytest.raises(EOFError): im.seek(n_frames) assert im.tell() < n_frames # Test that seeking to the last frame does not raise an error im.seek(n_frames - 1) def test_seek_tell(): with Image.open(animated_test_file) as im: layer_number = im.tell() assert layer_number == 0 im.seek(0) layer_number = im.tell() assert layer_number == 0 im.seek(1) layer_number = im.tell() assert layer_number == 1 im.seek(2) layer_number = im.tell() assert layer_number == 2 im.seek(1) layer_number = im.tell() assert layer_number == 1 def test_seek(): with Image.open(animated_test_file) as im: im.seek(50) assert_image_equal_tofile(im, "Tests/images/a_fli.png")