if err := xml.Unmarshal(data, queue2); err != nil {
		panic(err)
	}

	testCases := []struct {
		queue          *Queue
		region         string
		expectedResult ARN
	}{
		{queue1, "eu-west-1", ARN{TargetID{"1", "webhook"}, "eu-west-1"}},
		{queue1, "", ARN{TargetID{"1", "webhook"}, ""}},
		{queue2, "us-east-1", ARN{TargetID{"1", "webhook"}, "us-east-1"}},
		{queue2, "", ARN{TargetID{"1", "webhook"}, ""}},
	}