def test_graph_with_cycle(self):
graph = PertGraph()
graph._add_node(key='A', dependencies=['C'])
graph._add_node(key='B', dependencies=['A'])
graph._add_node(key='C', dependencies=['B'])
self.assertRaises(ValueError, ChronologicalLayout, graph)
def test_connected_graph(self):
graph = PertGraph()
graph._add_node(key='A', dependencies=[])
graph._add_node(key='B', dependencies=['A'])
graph._add_node(key='C', dependencies=['A'])
graph_connectivity = GraphConnectivityDFS(graph)
self.assertEqual(True, graph_connectivity.is_connected())
def test_non_cyclic_graph(self):
graph = PertGraph()
graph._add_node(key='A', dependencies=[])
graph._add_node(key='B', dependencies=['A'])
graph._add_node(key='C', dependencies=['A'])
graph._add_node(key='D', dependencies=['B', 'C'])
engine = CycleDetectorDFS(graph)
self.assertEqual(False, engine.is_cyclic())
def test_cyclic_graph_1(self):
graph = PertGraph()
graph._add_node(key='A', dependencies=['C'])
graph._add_node(key='B', dependencies=['A'])
graph._add_node(key='C', dependencies=['B'])
engine = CycleDetectorDFS(graph)
self.assertEqual(True, engine.is_cyclic())
self.assertEqual(['A', 'B', 'C', 'A'], engine.get_cycle())
def test_three_nodes_in_order(self):
graph = PertGraph()
graph._add_node(key='A', dependencies=[])
graph._add_node(key='B', dependencies=['A'])
graph._add_node(key='C', dependencies=['B'])
engine = ChronologicalLayout(graph)
engine.get_layout()
self.assertEqual(['A'], engine._gates[0])
self.assertEqual(['B'], engine._gates[1])
self.assertEqual(['C'], engine._gates[2])
def main():
print('jira_pert is running...\n')
options = parse_arguments()
epic_key = options.key
jira_api = JiraAPIv2()
features = jira_api.get_issues_in_epic(epic_key)
graph = PertGraph(features)
graph.print()
diagram = PertDiagram(graph)
diagram.plot()