def test_leaf_bad(self):
# A -> B -> C where all projects are bad.
reasons = {'A': None, 'B': 'A', 'C': 'B'}
self.assertEqual({('C', 'B', 'A')}, ciu.reasons_to_paths(reasons))
def test_leaf_okay(self):
# A -> B where B is okay.
reasons = {'A': None}
self.assertEqual({('A',)}, ciu.reasons_to_paths(reasons))
def test_all_projects_okay(self):
# A, B, and C are fine on their own.
self.assertEqual(set(), ciu.reasons_to_paths({}))
def test_leaf_bad(self):
# A -> B -> C where all projects are bad.
reasons = {'A': None, 'B': 'A', 'C': 'B'}
self.assertEqual(frozenset([('C', 'B', 'A')]),
ciu.reasons_to_paths(reasons))
def test_leaf_okay(self):
# A -> B where B is okay.
reasons = {'A': None}
self.assertEqual(frozenset([('A', )]), ciu.reasons_to_paths(reasons))
def test_all_projects_okay(self):
# A, B, and C are fine on their own.
self.assertEqual(set(), ciu.reasons_to_paths({}))