def test_import_bus_module_contains_bus_but_wrong_type(make_test_bus_module):
bus_module_name = make_test_bus_module(code="bus = 123")
with pytest.raises(FailedToImportBusModule) as e:
import_bus_module(bus_module_name)
assert "invalid value" in str(e).lower()
assert "int" in str(e.value).lower()
def test_import_bus_module_does_not_exist():
bus_module_name = "does_not_exist"
with pytest.raises(FailedToImportBusModule) as e:
import_bus_module(bus_module_name)
assert "failed to import" in str(e.value).lower()
def test_import_bus_module_does_not_contain_bus(make_test_bus_module):
bus_module_name = make_test_bus_module(code="")
with pytest.raises(FailedToImportBusModule) as e:
import_bus_module(bus_module_name)
assert "attribute" in str(e.value).lower()
def test_import_bus_module_ok(make_test_bus_module):
bus_module_name = make_test_bus_module()
bus_module = import_bus_module(bus_module_name)
assert inspect.ismodule(bus_module)
assert isinstance(bus_module.bus, BusPath)