def test_missing_module():
graph = ImportGraph()
for module in ("mypackage", "mypackage.foo"):
graph.add_module(module)
contract = IndependenceContract(
name="Independence contract",
session_options={"root_packages": ["mypackage"]},
contract_options={"modules": ["mypackage.foo", "mypackage.bar"]},
)
with pytest.raises(ValueError,
match=("Module 'mypackage.bar' does not exist.")):
contract.check(graph=graph)
def test_ignore_imports(ignore_imports, is_kept):
graph = ImportGraph()
graph.add_module("mypackage")
graph.add_import(importer="mypackage.a",
imported="mypackage.irrelevant",
line_number=1,
line_contents="-")
graph.add_import(importer="mypackage.a",
imported="mypackage.indirect",
line_number=1,
line_contents="-")
graph.add_import(importer="mypackage.indirect",
imported="mypackage.b",
line_number=1,
line_contents="-")
contract = IndependenceContract(
name="Independence contract",
session_options={"root_packages": ["mypackage"]},
contract_options={
"modules": ("mypackage.a", "mypackage.b"),
"ignore_imports": ignore_imports,
},
)
contract_check = contract.check(graph=graph)
assert is_kept == contract_check.kept
def test_ignore_imports_tolerates_duplicates():
graph = ImportGraph()
graph.add_module("mypackage")
graph.add_import(importer="mypackage.a",
imported="mypackage.b",
line_number=1,
line_contents="-")
graph.add_import(importer="mypackage.a",
imported="mypackage.c",
line_number=2,
line_contents="-")
contract = IndependenceContract(
name="Independence contract",
session_options={"root_packages": ["mypackage"]},
contract_options={
"modules": ("mypackage.a", "mypackage.b"),
"ignore_imports": [
"mypackage.a -> mypackage.b",
"mypackage.a -> mypackage.c",
"mypackage.a -> mypackage.b",
],
},
)
contract_check = contract.check(graph=graph)
assert contract_check.kept
def _check_default_contract(self, graph):
contract = IndependenceContract(
name="Independence contract",
session_options={"root_packages": ["mypackage"]},
contract_options={
"modules":
("mypackage.blue", "mypackage.green", "mypackage.yellow")
},
)
return contract.check(graph=graph)