def test_dfs_in_graph(self):
        gr = testlib.new_graph()
        gr.add_node('find-me')
        gr.add_node('dont-find-me')
        gr.add_edge((0, 'find-me'))
        gr.add_edge(('find-me','dont-find-me'))
        st, pre, post = depth_first_search(gr, root=0, filter=find('find-me'))
        assert st['find-me'] == 0
        assert st not in 'dont-find-me'
dataset/ETHPy150Open pmatiello/python-graph/tests/unittests-filters.py/test_find_filter.test_dfs_in_graph/swapped operands of `not in`