def METHOD_NAME(self):
    self.companion_stack_mock.escaped_parent_stack_name = "s" * 128
    self.companion_stack_mock.parent_stack_hash = "abcdefghijklmn"
    self.function_id = "F" * 64
    self.ecr_repo = ECRRepo(companion_stack=self.companion_stack_mock, function_full_path=self.function_id)
    self.assertEqual(self.ecr_repo.physical_id, "s" * 128 + "abcdefgh/" + "f" * 64 + "qwertyuirepo")