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47 lines
989 B
Python
47 lines
989 B
Python
import pytest
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from PIL import GribStubImagePlugin, Image
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from .helper import hopper
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TEST_FILE = "Tests/images/WAlaska.wind.7days.grb"
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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 == "GRIB"
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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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GribStubImagePlugin.GribStubImageFile(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(tmp_path):
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# Arrange
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im = hopper()
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tmpfile = str(tmp_path / "temp.grib")
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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(tmpfile)
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