def test_receive_return_proxy_object():
"""Test that an"""
viewer = ViewerModel()
viewer.add_image(np.random.random((20, 20)))
pv = PublicOnlyProxy(viewer)
# simulates behavior from outside of napari
with patch('napari.utils.misc.ROOT_DIR', new='/some/other/package'):
# the recursion means this layer will be a Proxy Object on __getitem__
layer = pv.layers[-1]
assert isinstance(layer, PublicOnlyProxy)
# remove and add it back, should be fine
add_layer = getattr(pv, 'add_layer')
add_layer(layer)
assert len(viewer.layers) == 2
def test_PublicOnlyProxy(patched_root_dir):
class X:
a = 1
_b = 'nope'
def method(self):
return 2
class Tester:
x = X()
_private = 2
def __getitem__(self, key):
return X()
t = Tester()
proxy = PublicOnlyProxy(t)
assert proxy.x.a == 1
assert proxy[0].a == 1
assert proxy.x.method() == 2
assert isinstance(proxy, Tester)
with pytest.warns(FutureWarning) as e:
proxy._private
assert 'Private attribute access' in str(e[0].message)
with pytest.warns(FutureWarning) as e:
# works on sub-objects too
proxy.x._b
assert 'Private attribute access' in str(e[0].message)
with pytest.warns(FutureWarning) as e:
# works on sub-items too
proxy[0]._b
assert 'Private attribute access' in str(e[0].message)
assert '_private' not in dir(proxy)
assert '_private' in dir(t)
def test_array_from_proxy_objects(patched_root_dir):
"""Test that the recursive public proxy goes no farther than napari."""
viewer = ViewerModel()
viewer.add_points(None)
pv = PublicOnlyProxy(viewer)
assert isinstance(np.array(pv.dims.displayed, dtype=int), np.ndarray)
def test_public_proxy_limited_to_napari(patched_root_dir):
"""Test that the recursive public proxy goes no farther than napari."""
viewer = ViewerModel()
viewer.add_points(None)
pv = PublicOnlyProxy(viewer)
assert not isinstance(pv.layers[0].data, PublicOnlyProxy)
def test_viewer_method():
viewer = PublicOnlyProxy(ViewerModel())
assert viewer.add_points() is not None