Method test_modules_are_loaded

test/base/test_utils.py:3576–3604

(self)

class TestModuleRegistry(fixtures.TestBase):
    def test_modules_are_loaded(self):
        to_restore = []
        for m in ("xml.dom", "wsgiref.simple_server"):
            to_restore.append((m, sys.modules.pop(m, None)))
        try:
            mr = preloaded._ModuleRegistry()

            ret = mr.preload_module(
                "xml.dom", "wsgiref.simple_server", "sqlalchemy.sql.util"
            )
            o = object()
            is_(ret(o), o)

            is_false(hasattr(mr, "xml_dom"))
            mr.import_prefix("xml")
            is_true("xml.dom" in sys.modules)
            is_(sys.modules["xml.dom"], mr.xml_dom)

            is_true("wsgiref.simple_server" not in sys.modules)
            mr.import_prefix("wsgiref")
            is_true("wsgiref.simple_server" in sys.modules)
            is_(sys.modules["wsgiref.simple_server"], mr.wsgiref_simple_server)

            mr.import_prefix("sqlalchemy")
            is_(sys.modules["sqlalchemy.sql.util"], mr.sql_util)
        finally:
            for name, mod in to_restore:
                if mod is not None:
                    sys.modules[name] = mod


class MethodOveriddenTest(fixtures.TestBase):