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130 lines
3.0 KiB
Python
130 lines
3.0 KiB
Python
import pytest
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from PIL import Image, PsdImagePlugin
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from .helper import assert_image_similar, hopper, is_pypy
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test_file = "Tests/images/hopper.psd"
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def test_sanity():
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with Image.open(test_file) as im:
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im.load()
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assert im.mode == "RGB"
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assert im.size == (128, 128)
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assert im.format == "PSD"
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im2 = hopper()
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assert_image_similar(im, im2, 4.8)
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@pytest.mark.skipif(is_pypy(), reason="Requires CPython")
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def test_unclosed_file():
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def open():
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im = Image.open(test_file)
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im.load()
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pytest.warns(ResourceWarning, open)
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def test_closed_file():
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def open():
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im = Image.open(test_file)
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im.load()
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im.close()
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pytest.warns(None, open)
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def test_context_manager():
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def open():
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with Image.open(test_file) as im:
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im.load()
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pytest.warns(None, open)
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def test_invalid_file():
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invalid_file = "Tests/images/flower.jpg"
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with pytest.raises(SyntaxError):
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PsdImagePlugin.PsdImageFile(invalid_file)
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def test_n_frames():
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with Image.open("Tests/images/hopper_merged.psd") as im:
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assert im.n_frames == 1
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assert not im.is_animated
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with Image.open(test_file) as im:
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assert im.n_frames == 2
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assert im.is_animated
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def test_eoferror():
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with Image.open(test_file) as im:
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# PSD seek index starts at 1 rather than 0
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n_frames = im.n_frames + 1
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# Test seeking past the last frame
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with pytest.raises(EOFError):
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im.seek(n_frames)
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assert im.tell() < n_frames
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# Test that seeking to the last frame does not raise an error
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im.seek(n_frames - 1)
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def test_seek_tell():
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with Image.open(test_file) as im:
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layer_number = im.tell()
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assert layer_number == 1
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with pytest.raises(EOFError):
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im.seek(0)
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im.seek(1)
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layer_number = im.tell()
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assert layer_number == 1
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im.seek(2)
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layer_number = im.tell()
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assert layer_number == 2
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def test_seek_eoferror():
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with Image.open(test_file) as im:
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with pytest.raises(EOFError):
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im.seek(-1)
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def test_open_after_exclusive_load():
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with Image.open(test_file) as im:
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im.load()
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im.seek(im.tell() + 1)
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im.load()
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def test_icc_profile():
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with Image.open(test_file) as im:
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assert "icc_profile" in im.info
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icc_profile = im.info["icc_profile"]
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assert len(icc_profile) == 3144
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def test_no_icc_profile():
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with Image.open("Tests/images/hopper_merged.psd") as im:
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assert "icc_profile" not in im.info
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def test_combined_larger_than_size():
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# The 'combined' sizes of the individual parts is larger than the
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# declared 'size' of the extra data field, resulting in a backwards seek.
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# If we instead take the 'size' of the extra data field as the source of truth,
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# then the seek can't be negative
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with pytest.raises(IOError):
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Image.open("Tests/images/combined_larger_than_size.psd")
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