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81 lines
1.8 KiB
Python
81 lines
1.8 KiB
Python
import pytest
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from PIL import Hdf5StubImagePlugin, Image
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TEST_FILE = "Tests/images/hdf5.h5"
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def test_open():
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# Act
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with Image.open(TEST_FILE) as im:
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# Assert
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assert im.format == "HDF5"
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# Dummy data from the stub
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assert im.mode == "F"
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assert im.size == (1, 1)
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def test_invalid_file():
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# Arrange
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invalid_file = "Tests/images/flower.jpg"
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# Act / Assert
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with pytest.raises(SyntaxError):
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Hdf5StubImagePlugin.HDF5StubImageFile(invalid_file)
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def test_load():
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# Arrange
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with Image.open(TEST_FILE) as im:
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# Act / Assert: stub cannot load without an implemented handler
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with pytest.raises(OSError):
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im.load()
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def test_save():
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# Arrange
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with Image.open(TEST_FILE) as im:
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dummy_fp = None
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dummy_filename = "dummy.filename"
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# Act / Assert: stub cannot save without an implemented handler
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with pytest.raises(OSError):
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im.save(dummy_filename)
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with pytest.raises(OSError):
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Hdf5StubImagePlugin._save(im, dummy_fp, dummy_filename)
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def test_handler(tmp_path):
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class TestHandler:
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opened = False
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loaded = False
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saved = False
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def open(self, im):
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self.opened = True
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def load(self, im):
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self.loaded = True
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return Image.new("RGB", (1, 1))
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def save(self, im, fp, filename):
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self.saved = True
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handler = TestHandler()
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Hdf5StubImagePlugin.register_handler(handler)
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with Image.open(TEST_FILE) as im:
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assert handler.opened
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assert not handler.loaded
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im.load()
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assert handler.loaded
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temp_file = str(tmp_path / "temp.h5")
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im.save(temp_file)
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assert handler.saved
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Hdf5StubImagePlugin._handler = None
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