def test_node_chmod(mock_chmod, mock_path_exists, atts, expected):
"""Tests Node's chmod method."""
mock_path_exists.return_value = True # Assume this is working for this test
node = Node(atts)
assert expected == node.chmod()
if atts['path'] and node.perms:
mock_chmod.assert_called_once_with(atts['path'], atts['perms'])
else:
assert not mock_chmod.called
def test_node_chmod_nonexisting(mock_path_exists):
"""Tests Node's chown method with a nonexisting node."""
mock_path_exists.return_value = False
node = Node(DEFUALT_ATTS)
with pytest.raises(IOError):
node.chmod()
