chore: add an integ test for deploy with notification ARNs (#4539)

packages/aws-cdk/test/integ/cli/test-cdk-deploy-with-notification-arns.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+set -euo pipefail
+scriptdir=$(cd $(dirname $0) && pwd)
+source ${scriptdir}/common.bash
+# ----------------------------------------------------------
+sns_topic_name=${STACK_NAME_PREFIX}-test-topic
+
+response_json=$(mktemp).json
+aws sns create-topic --name ${sns_topic_name} > ${response_json}
+sns_arn=$(node -e "console.log(require('${response_json}').TopicArn)")
+
+setup
+
+stack_arn=$(cdk deploy ${STACK_NAME_PREFIX}-test-2 --notification-arns ${sns_arn})
+echo "Stack deployed successfully"
+
+# verify that the stack we deployed has our notification ARN
+aws cloudformation describe-stacks --stack-name ${stack_arn} > ${response_json}
+
+notification_count=$(node -e "console.log(require('${response_json}').Stacks[0].NotificationARNs.length)")
+if [[ "${notification_count}" -ne 1 ]]; then
+  fail "stack has ${notification_count} SNS notification ARNs, and we expected one"
+fi
+
+notification_arn=$(node -e "console.log(require('${response_json}').Stacks[0].NotificationARNs[0])")
+if [[ "${notification_arn}" != "${sns_arn}" ]]; then
+  fail "stack has ${notification_arn} SNS notification ARN, and we expected ${sns_arn}"
+fi
+
+# destroy stack and delete SNS topic
+cdk destroy -f ${STACK_NAME_PREFIX}-test-2
+aws sns delete-topic --topic-arn ${sns_arn}
+
+echo "✅  success"