import io import pytest from PIL import EpsImagePlugin, Image, features from .helper import ( assert_image_similar, assert_image_similar_tofile, hopper, is_win32, mark_if_feature_version, skip_unless_feature, ) HAS_GHOSTSCRIPT = EpsImagePlugin.has_ghostscript() # Our two EPS test files (they are identical except for their bounding boxes) FILE1 = "Tests/images/zero_bb.eps" FILE2 = "Tests/images/non_zero_bb.eps" # Due to palletization, we'll need to convert these to RGB after load FILE1_COMPARE = "Tests/images/zero_bb.png" FILE1_COMPARE_SCALE2 = "Tests/images/zero_bb_scale2.png" FILE2_COMPARE = "Tests/images/non_zero_bb.png" FILE2_COMPARE_SCALE2 = "Tests/images/non_zero_bb_scale2.png" # EPS test files with binary preview FILE3 = "Tests/images/binary_preview_map.eps" # Three unsigned 32bit little-endian values: # 0xC6D3D0C5 magic number # byte position of start of postscript section (12) # byte length of postscript section (0) # this byte length isn't valid, but we don't read it simple_binary_header = b"\xc5\xd0\xd3\xc6\x0c\x00\x00\x00\x00\x00\x00\x00" # taken from page 8 of the specification # https://web.archive.org/web/20220120164601/https://www.adobe.com/content/dam/acom/en/devnet/actionscript/articles/5002.EPSF_Spec.pdf simple_eps_file = ( b"%!PS-Adobe-3.0 EPSF-3.0", b"%%BoundingBox: 5 5 105 105", b"10 setlinewidth", b"10 10 moveto", b"0 90 rlineto 90 0 rlineto 0 -90 rlineto closepath", b"stroke", ) simple_eps_file_with_comments = ( simple_eps_file[:1] + ( b"%%Comment1: Some Value", b"%%SecondComment: Another Value", ) + simple_eps_file[1:] ) simple_eps_file_without_version = simple_eps_file[1:] simple_eps_file_without_boundingbox = simple_eps_file[:1] + simple_eps_file[2:] simple_eps_file_with_invalid_boundingbox = ( simple_eps_file[:1] + (b"%%BoundingBox: a b c d",) + simple_eps_file[2:] ) simple_eps_file_with_invalid_boundingbox_valid_imagedata = ( simple_eps_file_with_invalid_boundingbox + (b"%ImageData: 100 100 8 3",) ) simple_eps_file_with_long_ascii_comment = ( simple_eps_file[:2] + (b"%%Comment: " + b"X" * 300,) + simple_eps_file[2:] ) simple_eps_file_with_long_binary_data = ( simple_eps_file[:2] + ( b"%%BeginBinary: 300", b"\0" * 300, b"%%EndBinary", ) + simple_eps_file[2:] ) @pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available") @pytest.mark.parametrize( ("filename", "size"), ((FILE1, (460, 352)), (FILE2, (360, 252))) ) @pytest.mark.parametrize("scale", (1, 2)) def test_sanity(filename, size, scale): expected_size = tuple(s * scale for s in size) with Image.open(filename) as image: image.load(scale=scale) assert image.mode == "RGB" assert image.size == expected_size assert image.format == "EPS" @pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available") def test_load(): with Image.open(FILE1) as im: assert im.load()[0, 0] == (255, 255, 255) # Test again now that it has already been loaded once assert im.load()[0, 0] == (255, 255, 255) def test_binary(): if HAS_GHOSTSCRIPT: assert EpsImagePlugin.gs_binary is not None else: assert EpsImagePlugin.gs_binary is False if not is_win32(): assert EpsImagePlugin.gs_windows_binary is None elif not HAS_GHOSTSCRIPT: assert EpsImagePlugin.gs_windows_binary is False else: assert EpsImagePlugin.gs_windows_binary is not None def test_invalid_file(): invalid_file = "Tests/images/flower.jpg" with pytest.raises(SyntaxError): EpsImagePlugin.EpsImageFile(invalid_file) def test_binary_header_only(): data = io.BytesIO(simple_binary_header) with pytest.raises(SyntaxError, match='EPS header missing "%!PS-Adobe" comment'): EpsImagePlugin.EpsImageFile(data) @pytest.mark.parametrize("prefix", (b"", simple_binary_header)) def test_missing_version_comment(prefix): data = io.BytesIO(prefix + b"\n".join(simple_eps_file_without_version)) with pytest.raises(SyntaxError): EpsImagePlugin.EpsImageFile(data) @pytest.mark.parametrize("prefix", (b"", simple_binary_header)) def test_missing_boundingbox_comment(prefix): data = io.BytesIO(prefix + b"\n".join(simple_eps_file_without_boundingbox)) with pytest.raises(SyntaxError, match='EPS header missing "%%BoundingBox" comment'): EpsImagePlugin.EpsImageFile(data) @pytest.mark.parametrize("prefix", (b"", simple_binary_header)) def test_invalid_boundingbox_comment(prefix): data = io.BytesIO(prefix + b"\n".join(simple_eps_file_with_invalid_boundingbox)) with pytest.raises(OSError, match="cannot determine EPS bounding box"): EpsImagePlugin.EpsImageFile(data) @pytest.mark.parametrize("prefix", (b"", simple_binary_header)) def test_invalid_boundingbox_comment_valid_imagedata_comment(prefix): data = io.BytesIO( prefix + b"\n".join(simple_eps_file_with_invalid_boundingbox_valid_imagedata) ) with Image.open(data) as img: assert img.mode == "RGB" assert img.size == (100, 100) assert img.format == "EPS" @pytest.mark.parametrize("prefix", (b"", simple_binary_header)) def test_ascii_comment_too_long(prefix): data = io.BytesIO(prefix + b"\n".join(simple_eps_file_with_long_ascii_comment)) with pytest.raises(SyntaxError, match="not an EPS file"): EpsImagePlugin.EpsImageFile(data) @pytest.mark.parametrize("prefix", (b"", simple_binary_header)) def test_long_binary_data(prefix): data = io.BytesIO(prefix + b"\n".join(simple_eps_file_with_long_binary_data)) EpsImagePlugin.EpsImageFile(data) @pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available") @pytest.mark.parametrize("prefix", (b"", simple_binary_header)) def test_load_long_binary_data(prefix): data = io.BytesIO(prefix + b"\n".join(simple_eps_file_with_long_binary_data)) with Image.open(data) as img: img.load() assert img.mode == "RGB" assert img.size == (100, 100) assert img.format == "EPS" @mark_if_feature_version( pytest.mark.valgrind_known_error, "libjpeg_turbo", "2.0", reason="Known Failing" ) @pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available") def test_cmyk(): with Image.open("Tests/images/pil_sample_cmyk.eps") as cmyk_image: assert cmyk_image.mode == "CMYK" assert cmyk_image.size == (100, 100) assert cmyk_image.format == "EPS" cmyk_image.load() assert cmyk_image.mode == "RGB" if features.check("jpg"): assert_image_similar_tofile( cmyk_image, "Tests/images/pil_sample_rgb.jpg", 10 ) @pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available") def test_showpage(): # See https://github.com/python-pillow/Pillow/issues/2615 with Image.open("Tests/images/reqd_showpage.eps") as plot_image: with Image.open("Tests/images/reqd_showpage.png") as target: # should not crash/hang plot_image.load() # fonts could be slightly different assert_image_similar(plot_image, target, 6) @pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available") def test_transparency(): with Image.open("Tests/images/reqd_showpage.eps") as plot_image: plot_image.load(transparency=True) assert plot_image.mode == "RGBA" with Image.open("Tests/images/reqd_showpage_transparency.png") as target: # fonts could be slightly different assert_image_similar(plot_image, target, 6) @pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available") def test_file_object(tmp_path): # issue 479 with Image.open(FILE1) as image1: with open(str(tmp_path / "temp.eps"), "wb") as fh: image1.save(fh, "EPS") @pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available") def test_bytesio_object(): with open(FILE1, "rb") as f: img_bytes = io.BytesIO(f.read()) with Image.open(img_bytes) as img: img.load() with Image.open(FILE1_COMPARE) as image1_scale1_compare: image1_scale1_compare = image1_scale1_compare.convert("RGB") image1_scale1_compare.load() assert_image_similar(img, image1_scale1_compare, 5) def test_1_mode(): with Image.open("Tests/images/1.eps") as im: assert im.mode == "1" def test_image_mode_not_supported(tmp_path): im = hopper("RGBA") tmpfile = str(tmp_path / "temp.eps") with pytest.raises(ValueError): im.save(tmpfile) @pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available") @skip_unless_feature("zlib") def test_render_scale1(): # We need png support for these render test # Zero bounding box with Image.open(FILE1) as image1_scale1: image1_scale1.load() with Image.open(FILE1_COMPARE) as image1_scale1_compare: image1_scale1_compare = image1_scale1_compare.convert("RGB") image1_scale1_compare.load() assert_image_similar(image1_scale1, image1_scale1_compare, 5) # Non-Zero bounding box with Image.open(FILE2) as image2_scale1: image2_scale1.load() with Image.open(FILE2_COMPARE) as image2_scale1_compare: image2_scale1_compare = image2_scale1_compare.convert("RGB") image2_scale1_compare.load() assert_image_similar(image2_scale1, image2_scale1_compare, 10) @pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available") @skip_unless_feature("zlib") def test_render_scale2(): # We need png support for these render test # Zero bounding box with Image.open(FILE1) as image1_scale2: image1_scale2.load(scale=2) with Image.open(FILE1_COMPARE_SCALE2) as image1_scale2_compare: image1_scale2_compare = image1_scale2_compare.convert("RGB") image1_scale2_compare.load() assert_image_similar(image1_scale2, image1_scale2_compare, 5) # Non-Zero bounding box with Image.open(FILE2) as image2_scale2: image2_scale2.load(scale=2) with Image.open(FILE2_COMPARE_SCALE2) as image2_scale2_compare: image2_scale2_compare = image2_scale2_compare.convert("RGB") image2_scale2_compare.load() assert_image_similar(image2_scale2, image2_scale2_compare, 10) @pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available") @pytest.mark.parametrize("filename", (FILE1, FILE2, "Tests/images/illu10_preview.eps")) def test_resize(filename): with Image.open(filename) as im: new_size = (100, 100) im = im.resize(new_size) assert im.size == new_size @pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available") @pytest.mark.parametrize("filename", (FILE1, FILE2)) def test_thumbnail(filename): # Issue #619 with Image.open(filename) as im: new_size = (100, 100) im.thumbnail(new_size) assert max(im.size) == max(new_size) def test_read_binary_preview(): # Issue 302 # open image with binary preview with Image.open(FILE3): pass def test_readline_psfile(tmp_path): # check all the freaking line endings possible from the spec # test_string = u'something\r\nelse\n\rbaz\rbif\n' line_endings = ["\r\n", "\n", "\n\r", "\r"] strings = ["something", "else", "baz", "bif"] def _test_readline(t, ending): ending = "Failure with line ending: %s" % ( "".join("%s" % ord(s) for s in ending) ) assert t.readline().strip("\r\n") == "something", ending assert t.readline().strip("\r\n") == "else", ending assert t.readline().strip("\r\n") == "baz", ending assert t.readline().strip("\r\n") == "bif", ending def _test_readline_io_psfile(test_string, ending): f = io.BytesIO(test_string.encode("latin-1")) with pytest.warns(DeprecationWarning): t = EpsImagePlugin.PSFile(f) _test_readline(t, ending) def _test_readline_file_psfile(test_string, ending): f = str(tmp_path / "temp.txt") with open(f, "wb") as w: w.write(test_string.encode("latin-1")) with open(f, "rb") as r: with pytest.warns(DeprecationWarning): t = EpsImagePlugin.PSFile(r) _test_readline(t, ending) for ending in line_endings: s = ending.join(strings) _test_readline_io_psfile(s, ending) _test_readline_file_psfile(s, ending) def test_psfile_deprecation(): with pytest.warns(DeprecationWarning): EpsImagePlugin.PSFile(None) @pytest.mark.parametrize("prefix", (b"", simple_binary_header)) @pytest.mark.parametrize( "line_ending", (b"\r\n", b"\n", b"\n\r", b"\r"), ) def test_readline(prefix, line_ending): simple_file = prefix + line_ending.join(simple_eps_file_with_comments) data = io.BytesIO(simple_file) test_file = EpsImagePlugin.EpsImageFile(data) assert test_file.info["Comment1"] == "Some Value" assert test_file.info["SecondComment"] == "Another Value" assert test_file.size == (100, 100) @pytest.mark.parametrize( "filename", ( "Tests/images/illu10_no_preview.eps", "Tests/images/illu10_preview.eps", "Tests/images/illuCS6_no_preview.eps", "Tests/images/illuCS6_preview.eps", ), ) def test_open_eps(filename): # https://github.com/python-pillow/Pillow/issues/1104 with Image.open(filename) as img: assert img.mode == "RGB" @pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available") def test_emptyline(): # Test file includes an empty line in the header data emptyline_file = "Tests/images/zero_bb_emptyline.eps" with Image.open(emptyline_file) as image: image.load() assert image.mode == "RGB" assert image.size == (460, 352) assert image.format == "EPS" @pytest.mark.timeout(timeout=5) @pytest.mark.parametrize( "test_file", ["Tests/images/timeout-d675703545fee17acab56e5fec644c19979175de.eps"], ) def test_timeout(test_file): with open(test_file, "rb") as f: with pytest.raises(Image.UnidentifiedImageError): with Image.open(f): pass def test_bounding_box_in_trailer(): # Check bounding boxes are parsed in the same way # when specified in the header and the trailer with Image.open("Tests/images/zero_bb_trailer.eps") as trailer_image, Image.open( FILE1 ) as header_image: assert trailer_image.size == header_image.size def test_eof_before_bounding_box(): with pytest.raises(OSError): with Image.open("Tests/images/zero_bb_eof_before_boundingbox.eps"): pass