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https://github.com/python-pillow/Pillow.git
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136 lines
3.2 KiB
Python
136 lines
3.2 KiB
Python
from __future__ import annotations
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import sys
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from io import BytesIO, StringIO
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import pytest
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from PIL import Image, IptcImagePlugin, TiffImagePlugin, TiffTags
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from .helper import assert_image_equal, hopper
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TEST_FILE = "Tests/images/iptc.jpg"
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def test_open() -> None:
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expected = Image.new("L", (1, 1))
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f = BytesIO(
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b"\x1c\x03<\x00\x02\x01\x00\x1c\x03x\x00\x01\x01\x1c\x03\x14\x00\x01\x01"
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b"\x1c\x03\x1e\x00\x01\x01\x1c\x08\n\x00\x01\x00"
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)
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with Image.open(f) as im:
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assert im.tile == [("iptc", (0, 0, 1, 1), 25, "raw")]
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assert_image_equal(im, expected)
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with Image.open(f) as im:
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assert im.load() is not None
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def test_getiptcinfo_jpg_none() -> None:
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# Arrange
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with hopper() as im:
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# Act
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iptc = IptcImagePlugin.getiptcinfo(im)
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# Assert
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assert iptc is None
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def test_getiptcinfo_jpg_found() -> None:
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# Arrange
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with Image.open(TEST_FILE) as im:
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# Act
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iptc = IptcImagePlugin.getiptcinfo(im)
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# Assert
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assert isinstance(iptc, dict)
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assert iptc[(2, 90)] == b"Budapest"
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assert iptc[(2, 101)] == b"Hungary"
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def test_getiptcinfo_fotostation() -> None:
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# Arrange
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with open(TEST_FILE, "rb") as fp:
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data = bytearray(fp.read())
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data[86] = 240
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f = BytesIO(data)
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with Image.open(f) as im:
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# Act
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iptc = IptcImagePlugin.getiptcinfo(im)
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# Assert
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assert iptc is not None
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assert 240 in (tag[0] for tag in iptc.keys()), "FotoStation tag not found"
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def test_getiptcinfo_zero_padding() -> None:
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# Arrange
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with Image.open(TEST_FILE) as im:
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im.info["photoshop"][0x0404] += b"\x00\x00\x00"
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# Act
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iptc = IptcImagePlugin.getiptcinfo(im)
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# Assert
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assert isinstance(iptc, dict)
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assert len(iptc) == 3
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def test_getiptcinfo_tiff() -> None:
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expected = {(1, 90): b"\x1b%G", (2, 0): b"\xcf\xc0"}
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with Image.open("Tests/images/hopper.Lab.tif") as im:
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iptc = IptcImagePlugin.getiptcinfo(im)
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assert iptc == expected
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# Test with LONG tag type
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with Image.open("Tests/images/hopper.Lab.tif") as im:
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im.tag_v2.tagtype[TiffImagePlugin.IPTC_NAA_CHUNK] = TiffTags.LONG
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iptc = IptcImagePlugin.getiptcinfo(im)
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assert iptc == expected
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def test_getiptcinfo_tiff_none() -> None:
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# Arrange
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with Image.open("Tests/images/hopper.tif") as im:
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# Act
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iptc = IptcImagePlugin.getiptcinfo(im)
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# Assert
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assert iptc is None
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def test_i() -> None:
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# Arrange
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c = b"a"
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# Act
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with pytest.warns(DeprecationWarning, match="IptcImagePlugin.i"):
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ret = IptcImagePlugin.i(c)
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# Assert
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assert ret == 97
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def test_dump(monkeypatch: pytest.MonkeyPatch) -> None:
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# Arrange
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c = b"abc"
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# Temporarily redirect stdout
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mystdout = StringIO()
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monkeypatch.setattr(sys, "stdout", mystdout)
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# Act
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with pytest.warns(DeprecationWarning, match="IptcImagePlugin.dump"):
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IptcImagePlugin.dump(c)
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# Assert
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assert mystdout.getvalue() == "61 62 63 \n"
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def test_pad_deprecation() -> None:
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with pytest.warns(DeprecationWarning, match="IptcImagePlugin.PAD"):
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assert IptcImagePlugin.PAD == b"\0\0\0\0"
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