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273 lines
7.9 KiB
Python
273 lines
7.9 KiB
Python
from __future__ import annotations
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import io
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import os
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from pathlib import Path
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import pytest
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from PIL import IcoImagePlugin, Image, ImageDraw, ImageFile
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from .helper import assert_image_equal, assert_image_equal_tofile, hopper
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TEST_ICO_FILE = "Tests/images/hopper.ico"
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def test_sanity() -> None:
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with Image.open(TEST_ICO_FILE) as im:
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im.load()
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assert im.mode == "RGBA"
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assert im.size == (16, 16)
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assert im.format == "ICO"
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assert im.get_format_mimetype() == "image/x-icon"
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def test_load() -> None:
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with Image.open(TEST_ICO_FILE) as im:
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px = im.load()
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assert px is not None
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assert px[0, 0] == (1, 1, 9, 255)
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def test_mask() -> None:
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with Image.open("Tests/images/hopper_mask.ico") as im:
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assert_image_equal_tofile(im, "Tests/images/hopper_mask.png")
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def test_black_and_white() -> None:
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with Image.open("Tests/images/black_and_white.ico") as im:
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assert im.mode == "RGBA"
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assert im.size == (16, 16)
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def test_palette(tmp_path: Path) -> None:
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temp_file = tmp_path / "temp.ico"
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im = Image.new("P", (16, 16))
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im.save(temp_file)
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with Image.open(temp_file) as reloaded:
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assert reloaded.mode == "P"
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assert reloaded.palette is not None
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def test_invalid_file() -> None:
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with open("Tests/images/flower.jpg", "rb") as fp:
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with pytest.raises(SyntaxError):
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IcoImagePlugin.IcoImageFile(fp)
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def test_save_to_bytes() -> None:
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output = io.BytesIO()
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im = hopper()
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im.save(output, "ico", sizes=[(32, 32), (64, 64)])
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# The default image
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output.seek(0)
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with Image.open(output) as reloaded:
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assert reloaded.info["sizes"] == {(32, 32), (64, 64)}
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assert im.mode == reloaded.mode
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assert (64, 64) == reloaded.size
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assert reloaded.format == "ICO"
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assert_image_equal(
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reloaded, hopper().resize((64, 64), Image.Resampling.LANCZOS)
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)
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# The other one
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output.seek(0)
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with Image.open(output) as reloaded:
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assert isinstance(reloaded, IcoImagePlugin.IcoImageFile)
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reloaded.size = (32, 32)
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assert im.mode == reloaded.mode
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assert (32, 32) == reloaded.size
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assert reloaded.format == "ICO"
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assert_image_equal(
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reloaded, hopper().resize((32, 32), Image.Resampling.LANCZOS)
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)
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def test_getpixel(tmp_path: Path) -> None:
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temp_file = tmp_path / "temp.ico"
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im = hopper()
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im.save(temp_file, "ico", sizes=[(32, 32), (64, 64)])
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with Image.open(temp_file) as reloaded:
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assert isinstance(reloaded, IcoImagePlugin.IcoImageFile)
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reloaded.load()
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reloaded.size = (32, 32)
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assert reloaded.getpixel((0, 0)) == (18, 20, 62)
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def test_no_duplicates(tmp_path: Path) -> None:
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temp_file = tmp_path / "temp.ico"
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temp_file2 = tmp_path / "temp2.ico"
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im = hopper()
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sizes = [(32, 32), (64, 64)]
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im.save(temp_file, "ico", sizes=sizes)
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sizes.append(sizes[-1])
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im.save(temp_file2, "ico", sizes=sizes)
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assert os.path.getsize(temp_file) == os.path.getsize(temp_file2)
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def test_different_bit_depths(tmp_path: Path) -> None:
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temp_file = tmp_path / "temp.ico"
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temp_file2 = tmp_path / "temp2.ico"
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im = hopper()
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im.save(temp_file, "ico", bitmap_format="bmp", sizes=[(128, 128)])
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hopper("1").save(
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temp_file2,
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"ico",
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bitmap_format="bmp",
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sizes=[(128, 128)],
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append_images=[im],
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)
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assert os.path.getsize(temp_file) != os.path.getsize(temp_file2)
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# Test that only matching sizes of different bit depths are saved
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temp_file3 = tmp_path / "temp3.ico"
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temp_file4 = tmp_path / "temp4.ico"
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im.save(temp_file3, "ico", bitmap_format="bmp", sizes=[(128, 128)])
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im.save(
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temp_file4,
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"ico",
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bitmap_format="bmp",
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sizes=[(128, 128)],
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append_images=[Image.new("P", (64, 64))],
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)
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assert os.path.getsize(temp_file3) == os.path.getsize(temp_file4)
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@pytest.mark.parametrize("mode", ("1", "L", "P", "RGB", "RGBA"))
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def test_save_to_bytes_bmp(mode: str) -> None:
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output = io.BytesIO()
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im = hopper(mode)
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im.save(output, "ico", bitmap_format="bmp", sizes=[(32, 32), (64, 64)])
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# The default image
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output.seek(0)
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with Image.open(output) as reloaded:
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assert reloaded.info["sizes"] == {(32, 32), (64, 64)}
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assert "RGBA" == reloaded.mode
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assert (64, 64) == reloaded.size
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assert reloaded.format == "ICO"
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im = hopper(mode).resize((64, 64), Image.Resampling.LANCZOS).convert("RGBA")
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assert_image_equal(reloaded, im)
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# The other one
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output.seek(0)
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with Image.open(output) as reloaded:
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assert isinstance(reloaded, IcoImagePlugin.IcoImageFile)
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reloaded.size = (32, 32)
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assert "RGBA" == reloaded.mode
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assert (32, 32) == reloaded.size
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assert reloaded.format == "ICO"
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im = hopper(mode).resize((32, 32), Image.Resampling.LANCZOS).convert("RGBA")
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assert_image_equal(reloaded, im)
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def test_incorrect_size() -> None:
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with Image.open(TEST_ICO_FILE) as im:
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assert isinstance(im, IcoImagePlugin.IcoImageFile)
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with pytest.raises(ValueError):
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im.size = (1, 1)
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def test_save_256x256(tmp_path: Path) -> None:
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"""Issue #2264 https://github.com/python-pillow/Pillow/issues/2264"""
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# Arrange
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with Image.open("Tests/images/hopper_256x256.ico") as im:
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outfile = tmp_path / "temp_saved_hopper_256x256.ico"
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# Act
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im.save(outfile)
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with Image.open(outfile) as im_saved:
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# Assert
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assert im_saved.size == (256, 256)
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def test_only_save_relevant_sizes(tmp_path: Path) -> None:
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"""Issue #2266 https://github.com/python-pillow/Pillow/issues/2266
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Should save in 16x16, 24x24, 32x32, 48x48 sizes
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and not in 16x16, 24x24, 32x32, 48x48, 48x48, 48x48, 48x48 sizes
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"""
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# Arrange
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with Image.open("Tests/images/python.ico") as im: # 16x16, 32x32, 48x48
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outfile = tmp_path / "temp_saved_python.ico"
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# Act
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im.save(outfile)
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with Image.open(outfile) as im_saved:
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# Assert
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assert im_saved.info["sizes"] == {(16, 16), (24, 24), (32, 32), (48, 48)}
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def test_save_append_images(tmp_path: Path) -> None:
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# append_images should be used for scaled down versions of the image
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im = hopper("RGBA")
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provided_im = Image.new("RGBA", (32, 32), (255, 0, 0))
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outfile = tmp_path / "temp_saved_multi_icon.ico"
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im.save(outfile, sizes=[(32, 32), (128, 128)], append_images=[provided_im])
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with Image.open(outfile) as reread:
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assert isinstance(reread, IcoImagePlugin.IcoImageFile)
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assert_image_equal(reread, hopper("RGBA"))
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reread.size = (32, 32)
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assert_image_equal(reread, provided_im)
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def test_unexpected_size() -> None:
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# This image has been manually hexedited to state that it is 16x32
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# while the image within is still 16x16
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with pytest.warns(UserWarning):
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with Image.open("Tests/images/hopper_unexpected.ico") as im:
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assert im.size == (16, 16)
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def test_draw_reloaded(tmp_path: Path) -> None:
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with Image.open(TEST_ICO_FILE) as im:
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outfile = tmp_path / "temp_saved_hopper_draw.ico"
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draw = ImageDraw.Draw(im)
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draw.line((0, 0) + im.size, "#f00")
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im.save(outfile)
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with Image.open(outfile) as im:
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assert_image_equal_tofile(im, "Tests/images/hopper_draw.ico")
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def test_truncated_mask(monkeypatch: pytest.MonkeyPatch) -> None:
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# 1 bpp
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with open("Tests/images/hopper_mask.ico", "rb") as fp:
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data = fp.read()
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monkeypatch.setattr(ImageFile, "LOAD_TRUNCATED_IMAGES", True)
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data = data[:-3]
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with Image.open(io.BytesIO(data)) as im:
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assert im.mode == "1"
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# 32 bpp
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output = io.BytesIO()
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expected = hopper("RGBA")
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expected.save(output, "ico", bitmap_format="bmp")
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data = output.getvalue()[:-1]
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with Image.open(io.BytesIO(data)) as im:
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assert im.mode == "RGB"
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