def test_unordered_flow_provides_required_values(self):
flow = uf.Flow('uf')
flow.add(utils.TaskOneReturn('task1', provides='x'),
utils.TaskOneArg('task2'))
flow.add(utils.TaskOneReturn('task1', provides='x'),
utils.TaskOneArg('task2'))
self.assertEqual(set(['x']), flow.provides)
self.assertEqual(set(['x']), flow.requires)
def test_linear_flow_provides_required_values(self):
flow = lf.Flow('lf').add(utils.TaskOneReturn('task1', provides='x'),
utils.TaskOneArg('task2'))
self.assertEqual(set(), flow.requires)
self.assertEqual(set(['x']), flow.provides)
def test_linear_flow_requires_rebind_values(self):
flow = lf.Flow('lf').add(utils.TaskOneArg('task1', rebind=['q']),
utils.TaskMultiArg('task2'))
self.assertEqual(set(['x', 'y', 'z', 'q']), flow.requires)
self.assertEqual(set(), flow.provides)
def test_graph_flow_requires_values(self):
flow = gf.Flow('gf').add(utils.TaskOneArg('task1'),
utils.TaskMultiArg('task2'))
self.assertEqual(set(['x', 'y', 'z']), flow.requires)
self.assertEqual(set(), flow.provides)
