def test_viewer_open_no_plugin(tmp_path):
viewer = ViewerModel()
fname = tmp_path / 'gibberish.gbrsh'
fname.touch()
with pytest.raises(ValueError) as e:
viewer.open(fname)
assert 'No plugin found capable of reading' in str(e.value)
def test_viewer_open_no_plugin(tmp_path):
viewer = ViewerModel()
fname = tmp_path / 'gibberish.gbrsh'
fname.touch()
with pytest.raises(ValueError, match='No plugin found capable of reading'):
# will default to builtins
viewer.open(fname)
def test_viewer_open_no_plugin(tmp_path):
viewer = ViewerModel()
fname = tmp_path / 'gibberish.gbrsh'
fname.touch()
with pytest.raises(ValueError) as e:
# will default to builtins
viewer.open(fname)
assert "Plugin 'builtins' does not support file(s)" in str(e.value)
def test_viewer_open():
"""Test that a plugin to returning nothing adds nothing to the Viewer."""
viewer = ViewerModel()
assert len(viewer.layers) == 0
viewer.open('mock_path')
assert len(viewer.layers) == 1
viewer.open('mock_path', stack=True)
assert len(viewer.layers) == 2
def test_viewer_open():
"""Test that a plugin to returning an image adds stuff to the viewer."""
viewer = ViewerModel()
assert len(viewer.layers) == 0
viewer.open('mock_path.tif')
assert len(viewer.layers) == 1
# The name should be taken from the path name, stripped of extension
assert viewer.layers[0].name == 'mock_path'
# stack=True also works... and very long names are truncated
viewer.open('mock_path.tif', stack=True)
assert len(viewer.layers) == 2
assert viewer.layers[1].name.startswith('mock_path')