def test_remove_vertex(self, rm_edge):
""" Ensures a vertex and its corresponding edges are removed. """
vertex_one = Vertex(0) # Create some components
vertex_two = Vertex(1)
edge_one = Edge(0, vertex_one, vertex_two)
g = Graph() # Generate graph and add components
g.add_vertex(vertex_one)
g.add_vertex(vertex_two)
g.add_edge(edge_one)
g.remove_vertex(vertex_one) # Remove the vertex
assert vertex_one not in g.get_vertices()
assert vertex_two in g.get_vertices()
assert rm_edge.called_with(edge_one) # Ensure remove edge was called
def test_get_vertices(self):
""" Ensures vertices are returned correctly. """
vertex_one = Vertex(0)
vertex_two = Vertex(1)
g = Graph()
g._vertices = [vertex_one, vertex_two]
assert g.get_vertices() == [vertex_one, vertex_two]