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80 lines
2.2 KiB
Python
80 lines
2.2 KiB
Python
import pytest
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from PIL import Image, WmfImagePlugin
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from .helper import assert_image_similar, hopper
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def test_load_raw():
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# Test basic EMF open and rendering
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with Image.open("Tests/images/drawing.emf") as im:
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if hasattr(Image.core, "drawwmf"):
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# Currently, support for WMF/EMF is Windows-only
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im.load()
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# Compare to reference rendering
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with Image.open("Tests/images/drawing_emf_ref.png") as imref:
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imref.load()
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assert_image_similar(im, imref, 0)
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# Test basic WMF open and rendering
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with Image.open("Tests/images/drawing.wmf") as im:
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if hasattr(Image.core, "drawwmf"):
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# Currently, support for WMF/EMF is Windows-only
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im.load()
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# Compare to reference rendering
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with Image.open("Tests/images/drawing_wmf_ref.png") as imref:
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imref.load()
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assert_image_similar(im, imref, 2.0)
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def test_register_handler(tmp_path):
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class TestHandler:
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methodCalled = False
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def save(self, im, fp, filename):
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self.methodCalled = True
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handler = TestHandler()
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original_handler = WmfImagePlugin._handler
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WmfImagePlugin.register_handler(handler)
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im = hopper()
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tmpfile = str(tmp_path / "temp.wmf")
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im.save(tmpfile)
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assert handler.methodCalled
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# Restore the state before this test
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WmfImagePlugin.register_handler(original_handler)
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def test_load_dpi_rounding():
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# Round up
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with Image.open("Tests/images/drawing.emf") as im:
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assert im.info["dpi"] == 1424
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# Round down
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with Image.open("Tests/images/drawing_roundDown.emf") as im:
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assert im.info["dpi"] == 1426
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def test_load_set_dpi():
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with Image.open("Tests/images/drawing.wmf") as im:
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assert im.size == (82, 82)
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if hasattr(Image.core, "drawwmf"):
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im.load(144)
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assert im.size == (164, 164)
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with Image.open("Tests/images/drawing_wmf_ref_144.png") as expected:
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assert_image_similar(im, expected, 2.1)
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def test_save(tmp_path):
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im = hopper()
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for ext in [".wmf", ".emf"]:
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tmpfile = str(tmp_path / ("temp" + ext))
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with pytest.raises(OSError):
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im.save(tmpfile)
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