Added tests for stream templates

.test/config.sh

@@ -2,9 +2,10 @@ imageTests+=(
 	[nginx]='
         ipv6
         static
-        templates
+        templates-http
         templates-resolver
         templates-resolver-ipv6
+        templates-stream
         workers
         modules
 	'

.test/tests/templates-stream/expected-std-out.txt

@@ -0,0 +1 @@
+example.com - OK

.test/tests/templates-stream/run.sh

@@ -0,0 +1,45 @@
+#!/bin/bash
+
+[ "$DEBUG" ] && set -x
+
+set -eo pipefail
+
+dir="$(dirname "$(readlink -f "$BASH_SOURCE")")"
+
+image="$1"
+
+clientImage='alpine:latest'
+# ensure the clientImage is ready and available
+if ! docker image inspect "$clientImage" &> /dev/null; then
+	docker pull "$clientImage" > /dev/null
+fi
+
+# Create an instance of the container-under-test
+serverImage="$("$HOME/oi/test/tests/image-name.sh" librarytest/nginx-template "$image")"
+"$HOME/oi/test/tests/docker-build.sh" "$dir" "$serverImage" <<EOD
+FROM $image
+
+RUN rm -f /etc/nginx/conf.d/default.conf
+
+COPY dir/server.conf.template /etc/nginx/templates/server.conf.stream-template
+EOD
+cid="$(docker run -d -e NGINX_MY_SERVER_NAME=example.com "$serverImage")"
+trap "docker rm -vf $cid > /dev/null" EXIT
+
+_request() {
+	if [ "$(docker inspect -f '{{.State.Running}}' "$cid" 2>/dev/null)" != 'true' ]; then
+		echo >&2 "$image stopped unexpectedly!"
+		( set -x && docker logs "$cid" ) >&2 || true
+		false
+	fi
+
+	docker run --rm \
+		--link "$cid":nginx \
+		"$clientImage" \
+		nc -w 1 nginx 80
+}
+
+. "$HOME/oi/test/retry.sh" '[ "$(_request GET / --output /dev/null || echo $?)" != 7 ]'
+
+# Check that we can request /
+_request | grep 'example.com - OK'

.test/tests/templates-stream/server.conf.template

@@ -0,0 +1,4 @@
+server {
+    listen 80;
+    return "${NGINX_MY_SERVER_NAME} - OK\n";
+}