def test_run_dijkstra_with_incorrect_start_vertex_return_error(self):
model = DAViewModel()
model.set_num_vertex('3')
model.set_start_vertex('-2')
matrix = [['0', '2', '1'], ['2', '0', '3'], ['1', '3', '0']]
model.run_dijkstra(matrix)
self.assertEqual(model.get_error(), "Wrong value of source vertex")
def test_run_dijkstra_with_incorrect_weights_return_error(self):
model = DAViewModel()
model.set_num_vertex('3')
model.set_start_vertex('2')
matrix = [['0', '5', '1'], ['2', '0', '3'], ['1', '3', '0']]
model.run_dijkstra(matrix)
self.assertEqual(model.get_error(), "Matrix is not symmetric")