def _test_restorer(stack, data): # We need to test the request's specific Registry. Initialize it here so we # can use it later (RegistryManager will re-use one preexisting in the # environ) registry = Registry() extra_environ={'paste.throw_errors': False, 'paste.registry': registry} request_id = restorer.get_request_id(extra_environ) app = TestApp(stack) res = app.get('/', extra_environ=extra_environ, expect_errors=True) # Ensure all the StackedObjectProxies are empty after the RegistryUsingApp # raises an Exception for stacked, proxied_obj, test_cleanup in data: only_key = list(proxied_obj.keys())[0] try: assert only_key not in stacked assert False except TypeError: # Definitely empty pass # Ensure the StackedObjectProxies & Registry 'work' in the simulated # EvalException context replace = {'replace': 'dict'} new = {'new': 'object'} restorer.restoration_begin(request_id) try: for stacked, proxied_obj, test_cleanup in data: # Ensure our original data magically re-appears in this context only_key, only_val = list(proxied_obj.items())[0] assert only_key in stacked and stacked[only_key] == only_val # Ensure the Registry still works registry.prepare() registry.register(stacked, new) assert 'new' in stacked and stacked['new'] == 'object' registry.cleanup() # Back to the original (pre-prepare()) assert only_key in stacked and stacked[only_key] == only_val registry.replace(stacked, replace) assert 'replace' in stacked and stacked['replace'] == 'dict' if test_cleanup: registry.cleanup() try: stacked._current_obj() assert False except TypeError: # Definitely empty pass finally: restorer.restoration_end()