Merge pull request #5697 from infosiftr/mongo-express-test

Add initial "mongo-express" test

test/config.sh

@@ -125,6 +125,9 @@ imageTests+=(
 		mongo-tls-basics
 		mongo-tls-auth
 	'
+	[mongo-express]='
+		mongo-express-run
+	'
 	[mono]='
 	'
 	[mysql]='

test/tests/mongo-express-run/run.sh

@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+dir="$(dirname "$(readlink -f "$BASH_SOURCE")")"
+
+clientImage='buildpack-deps:buster-curl'
+
+mongoImage='mongo:4.0'
+serverImage="$1"
+
+# Create an instance of the container-under-test
+mongoCid="$(docker run -d "$mongoImage")"
+trap "docker rm -vf $mongoCid > /dev/null" EXIT
+cid="$(docker run -d --link "$mongoCid":mongo "$serverImage")"
+trap "docker rm -vf $cid $mongoCid > /dev/null" EXIT
+
+_request() {
+	local method="$1"
+	shift
+
+	local url="${1#/}"
+	shift
+
+	docker run --rm --link "$cid":me "$clientImage" \
+		curl -fsL -X"$method" "$@" "http://me:8081/$url"
+}
+
+# make sure that mongo-express is listening and ready
+. "$dir/../../retry.sh" '_request GET / --output /dev/null'
+
+# if we evetually got a "200 OK" response from mongo-express, it should be ~working fine!
+# (since it fails to even start if it can't connect to MongoDB, etc)