mirror of
https://github.com/wassname/scikit-image.git
synced 2026-06-28 23:42:02 +08:00
Tony S Yu
51 lines
1.2 KiB
Python
51 lines
1.2 KiB
Python
import os
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import warnings
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from contextlib import contextmanager
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import numpy as np
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from numpy.testing import raises
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from skimage import io
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from skimage import data_dir
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@contextmanager
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def warnings_as_errors():
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# Temporarily set warnings as errors so we can test the warning is raised.
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with warnings.catch_warnings():
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warnings.filterwarnings('error')
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yield
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@raises(Warning)
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def test_null_imread():
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path = os.path.join(data_dir, 'color.png')
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with warnings_as_errors():
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io.imread(path, plugin='null')
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@raises(Warning)
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def test_null_imsave():
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with warnings_as_errors():
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io.imsave('dummy.png', np.zeros((3, 3)), plugin='null')
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@raises(Warning)
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def test_null_imshow():
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with warnings_as_errors():
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io.imshow(np.zeros((3, 3)), plugin='null')
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@raises(Warning)
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def test_null_imread_collection():
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# Note that the null plugin doesn't define an `imread_collection` plugin
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# but this function is dynamically added by the plugin manager.
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path = os.path.join(data_dir, '*.png')
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with warnings_as_errors():
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collection = io.imread_collection(path, plugin='null')
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collection[0]
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if __name__ == '__main__':
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from numpy.testing import run_module_suite
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run_module_suite()
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