def test_add_and_remove_dep():
dep_dic = {'A': [], 'B': [['A']], 'C': [['D', 'G'], ['A']],
'D': [['A'], ['C', 'G']], 'E': [['D', 'G'], ['A'], ['C']],
'F': [['A'], ['B']], 'G': [['A'], ['C', 'D']]}
dependencies = Dependencies(dep_dic)
dependencies.add_dep('B', ['C'])
assert_equal_dependency_dics(dependencies.serialize(),
{'A': [], 'B': [['A'], ['C']], 'C': [['D', 'G'], ['A']],
'D': [['A'], ['C', 'G']], 'E': [['D', 'G'], ['A'], ['C']],
'F': [['A'], ['B']], 'G': [['A'], ['C', 'D']]})
dependencies.remove_dep('B', ['C'])
assert_equal_dependency_dics(dependencies.serialize(), dep_dic)
def test_from_rels():
dep_dic = {
'A': [['B']], 'B': [['E'], ['A', 'D']], 'C': [['E', 'F']],
'D': [['A']], 'E': [['A']], 'F': [['G']], 'G': []}
dependencies = Dependencies(dep_dic)
rels = dependencies.tuple_relations()
dependencies_new = Dependencies.from_rels(rels)
assert dependencies.serialize() == dependencies_new.serialize()
def test_remove_implied_extroneous():
dep_dic = {'A': [], 'B': [['A']], 'C': [['A', 'B']]}
dependencies = Dependencies(dep_dic)
dependencies.remove_implied_extroneous()
assert dependencies.serialize() == {'A': [], 'B': [['A']], 'C': [['A']]}