def test_apply_stack_name_suffix_appends_number_suffix_to_all_stacks(self):
stacks = {
"stack-a": StackConfig({"template-url": "some-url", "parameters": {"a": 1, "b": "|ref|stack-b.a"}}),
"stack-b": StackConfig({"template-url": "some-url", "parameters": {"a": 1, "b": "foo"}})
}
result = Config._apply_stack_name_suffix(stacks, 3)
self.assertEqual(result["stack-a3"].parameters["a"], 1)
self.assertEqual(result["stack-a3"].parameters["b"], "|ref|stack-b3.a")
self.assertEqual(result["stack-b3"].parameters["a"], 1)
self.assertEqual(result["stack-b3"].parameters["b"], "foo")
