73 lines
2.1 KiB
Python
73 lines
2.1 KiB
Python
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from contextlib import contextmanager
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from skimage import io
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from skimage.io import manage_plugins
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from skimage._shared import testing
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from skimage._shared.testing import assert_equal
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priority_plugin = 'pil'
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def setup():
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io.use_plugin('pil')
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def teardown_module():
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io.reset_plugins()
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@contextmanager
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def protect_preferred_plugins():
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"""Contexts where `preferred_plugins` can be modified w/o side-effects."""
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preferred_plugins = manage_plugins.preferred_plugins.copy()
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try:
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yield
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finally:
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manage_plugins.preferred_plugins = preferred_plugins
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def test_failed_use():
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with testing.raises(ValueError):
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manage_plugins.use_plugin('asd')
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def test_use_priority():
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manage_plugins.use_plugin(priority_plugin)
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plug, func = manage_plugins.plugin_store['imread'][0]
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assert_equal(plug, priority_plugin)
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manage_plugins.use_plugin('matplotlib')
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plug, func = manage_plugins.plugin_store['imread'][0]
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assert_equal(plug, 'matplotlib')
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def test_load_preferred_plugins_all():
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from skimage.io._plugins import pil_plugin, matplotlib_plugin
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with protect_preferred_plugins():
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manage_plugins.preferred_plugins = {'all': ['pil'],
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'imshow': ['matplotlib']}
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manage_plugins.reset_plugins()
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for plugin_type in ('imread', 'imsave'):
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plug, func = manage_plugins.plugin_store[plugin_type][0]
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assert func == getattr(pil_plugin, plugin_type)
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plug, func = manage_plugins.plugin_store['imshow'][0]
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assert func == getattr(matplotlib_plugin, 'imshow')
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def test_load_preferred_plugins_imread():
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from skimage.io._plugins import pil_plugin, matplotlib_plugin
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with protect_preferred_plugins():
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manage_plugins.preferred_plugins['imread'] = ['pil']
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manage_plugins.reset_plugins()
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plug, func = manage_plugins.plugin_store['imread'][0]
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assert func == pil_plugin.imread
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plug, func = manage_plugins.plugin_store['imshow'][0]
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assert func == matplotlib_plugin.imshow, func.__module__
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