def test_open_or_get_error_no_plugin(mock_npe2_pm):
"""Assert error is raised when no plugin is available."""
viewer = ViewerModel()
with pytest.raises(NoAvailableReaderError,
match='No plugin found capable of reading'):
viewer._open_or_raise_error(['my_file.fake'])
def test_open_or_get_error_preferred_fails(builtins, tmp_path):
viewer = ViewerModel()
pth = tmp_path / 'my-file.npy'
get_settings().plugins.extension2reader = {'*.npy': builtins.name}
with pytest.raises(ReaderPluginError,
match='Tried opening with napari, but failed.'):
viewer._open_or_raise_error([str(pth)])
def test_open_or_get_error_preferred_fails(tmp_path):
viewer = ViewerModel()
pth = tmp_path / 'my-file.npy'
with restore_settings_on_exit():
get_settings().plugins.extension2reader = {'.npy': 'napari'}
with pytest.raises(ReaderPluginError,
match='Tried opening with napari, but failed.'):
viewer._open_or_raise_error([str(pth)])
def test_open_or_get_error_multiple_readers(mock_npe2_pm, tmp_reader):
"""Assert error is returned when multiple plugins are available to read."""
viewer = ViewerModel()
tmp_reader(mock_npe2_pm, 'p1')
tmp_reader(mock_npe2_pm, 'p2')
with pytest.raises(MultipleReaderError,
match='Multiple plugins found capable'):
viewer._open_or_raise_error(['my_file.fake'])
def test_open_or_get_error_cant_find_plugin(mock_npe2_pm, tmp_reader):
"""Test correct error message is returned when prefered plugin is missing."""
viewer = ViewerModel()
with restore_settings_on_exit():
get_settings().plugins.extension2reader = {'*.fake': 'fake-reader'}
tmp_reader(mock_npe2_pm, 'other-fake-reader')
with pytest.raises(MissingAssociatedReaderError,
match="Can't find fake-reader plugin"):
viewer._open_or_raise_error(['my_file.fake'])
def test_open_or_get_error_multiple_readers(tmp_plugin: DynamicPlugin):
"""Assert error is returned when multiple plugins are available to read."""
viewer = ViewerModel()
tmp2 = tmp_plugin.spawn(register=True)
@tmp_plugin.contribute.reader(filename_patterns=['*.fake'])
def _(path):
...
@tmp2.contribute.reader(filename_patterns=['*.fake'])
def _(path):
...
with pytest.raises(MultipleReaderError,
match='Multiple plugins found capable'):
viewer._open_or_raise_error(['my_file.fake'])
def test_open_or_get_error_no_prefered_plugin_many_available(
tmp_plugin: DynamicPlugin, ):
"""Test MultipleReaderError raised if preferred plugin missing."""
viewer = ViewerModel()
tmp2 = tmp_plugin.spawn(register=True)
@tmp_plugin.contribute.reader(filename_patterns=['*.fake'])
def _(path):
...
@tmp2.contribute.reader(filename_patterns=['*.fake'])
def _(path):
...
get_settings().plugins.extension2reader = {'*.fake': 'not-a-plugin'}
with pytest.warns(RuntimeWarning, match="Can't find not-a-plugin plugin"):
with pytest.raises(MultipleReaderError,
match='Multiple plugins found capable'):
viewer._open_or_raise_error(['my_file.fake'])
def test_open_or_get_error_no_prefered_plugin_many_available(
mock_npe2_pm, tmp_reader
):
"""Test MultipleReaderError raised if preferred plugin missing."""
viewer = ViewerModel()
with restore_settings_on_exit():
get_settings().plugins.extension2reader = {'*.fake': 'not-a-plugin'}
tmp_reader(mock_npe2_pm, 'fake-reader', filename_patterns=['*.fake'])
tmp_reader(
mock_npe2_pm, 'other-fake-reader', filename_patterns=['*.fake']
)
with pytest.warns(
RuntimeWarning, match="Can't find not-a-plugin plugin"
):
with pytest.raises(
MultipleReaderError, match='Multiple plugins found capable'
):
viewer._open_or_raise_error(['my_file.fake'])
def test_open_or_get_error_cant_find_plugin(tmp_path, builtins: DynamicPlugin):
"""Test user is warned and only plugin used if preferred plugin missing."""
viewer = ViewerModel()
pth = tmp_path / 'my-file.npy'
np.save(pth, np.random.random((10, 10)))
get_settings().plugins.extension2reader = {'*.npy': 'fake-reader'}
with pytest.warns(RuntimeWarning, match="Can't find fake-reader plugin"):
added = viewer._open_or_raise_error([str(pth)])
assert len(added) == 1
assert added[0].source.reader_plugin == builtins.name
def test_open_or_get_error_builtins(mock_npe2_pm, tmp_path):
"""Test builtins is available to read npy files."""
viewer = ViewerModel()
f_pth = tmp_path / 'my-file.npy'
data = np.random.random((10, 10))
np.save(f_pth, data)
added = viewer._open_or_raise_error([str(f_pth)])
assert len(added) == 1
layer = added[0]
assert isinstance(layer, Image)
np.testing.assert_allclose(layer.data, data)
assert layer.source.reader_plugin == 'builtins'
def test_open_or_get_error_prefered_plugin(tmp_path, builtins: DynamicPlugin,
tmp_plugin: DynamicPlugin):
"""Test plugin preference is respected."""
viewer = ViewerModel()
pth = tmp_path / 'my-file.npy'
np.save(pth, np.random.random((10, 10)))
@tmp_plugin.contribute.reader(filename_patterns=['*.npy'])
def _(path):
...
get_settings().plugins.extension2reader = {'*.npy': builtins.name}
added = viewer._open_or_raise_error([str(pth)])
assert len(added) == 1
assert added[0].source.reader_plugin == builtins.name
def test_open_or_get_error_prefered_plugin(mock_npe2_pm, tmp_reader, tmp_path):
"""Test plugin preference is respected."""
viewer = ViewerModel()
pth = tmp_path / 'my-file.npy'
np.save(pth, np.random.random((10, 10)))
with restore_settings_on_exit():
get_settings().plugins.extension2reader = {'*.npy': 'builtins'}
tmp_reader(mock_npe2_pm, 'fake-reader', filename_patterns=['*.npy'])
tmp_reader(mock_npe2_pm,
'other-fake-reader',
filename_patterns=['*.npy'])
added = viewer._open_or_raise_error([str(pth)])
assert len(added) == 1
assert added[0].source.reader_plugin == 'builtins'
