def test_example(self):
deps = resolve_dependencies({
'a': ['b', 'c'],
'b': ['c'],
'c': ['d'],
'd': []
})
self.assertEqual(list(deps), ['d', 'c', 'b', 'a'])
def test_missing_link(self):
deps = resolve_dependencies({'a': 'b', 'c': 'd'})
with self.assertRaises(ValueError):
list(deps)
def test_unresolvable(self):
deps = resolve_dependencies({'a': 'b', 'b': 'a'})
with self.assertRaises(ValueError):
list(deps)
def test_example(self):
deps = resolve_dependencies({'a': ['b', 'c'], 'b': ['c'],
'c': ['d'], 'd': []})
self.assertEqual(list(deps), ['d', 'c', 'b', 'a'])
def test_missing_link(self):
deps = resolve_dependencies({'a': 'b', 'c': 'd'})
with self.assertRaises(ValueError):
list(deps)
def test_unresolvable(self):
deps = resolve_dependencies({'a': 'b', 'b': 'a'})
with self.assertRaises(ValueError):
list(deps)