Add test setup for notification feature (#61)

* Add test case for notification feature

* Fix template data

* bash is needed to interpret test

* Do not use bashisms in test

* Only print FullPath

* Fix assertion

test/notifications/.gitignore

@@ -0,0 +1 @@
+local

test/notifications/docker-compose.yml

@@ -0,0 +1,36 @@
+version: '3'
+
+services:
+  backup: &default_backup_service
+    image: offen/docker-volume-backup:${TEST_VERSION}
+    restart: always
+    environment:
+      BACKUP_FILENAME: test.tar.gz
+      BACKUP_CRON_EXPRESSION: 0 0 5 31 2 ?
+      BACKUP_PRUNING_PREFIX: test
+      NOTIFICATION_LEVEL: info
+      NOTIFICATION_URLS: gotify://gotify/${GOTIFY_TOKEN}?disableTLS=true
+    volumes:
+      - ./local:/archive
+      - app_data:/backup/app_data:ro
+      - ./notifications.tmpl:/etc/dockervolumebackup/notifications.d/notifications.tmpl
+
+  offen:
+    image: offen/offen:latest
+    labels:
+      - docker-volume-backup.stop-during-backup=true
+    volumes:
+      - app_data:/var/opt/offen
+
+  gotify:
+    image: gotify/server
+    ports:
+      - 8080:80
+    environment:
+      - GOTIFY_DEFAULTUSER_PASS=custom
+    volumes:
+      - gotify_data:/app/data
+
+volumes:
+  app_data:
+  gotify_data:

test/notifications/notifications.tmpl

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+{{ define "title_success" -}}
+Successful test run, yay!
+{{- end }}
+
+{{ define "body_success" -}}
+Backing up {{ .Stats.BackupFile.FullPath }} succeeded.
+{{- end }}

test/notifications/run.sh

@@ -0,0 +1,58 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+mkdir -p local
+
+docker-compose up -d
+sleep 5
+
+GOTIFY_TOKEN=$(curl -sSLX POST -H 'Content-Type: application/json' -d '{"name":"test"}' http://admin:custom@localhost:8080/application | jq -r '.token')
+
+docker-compose down
+
+GOTIFY_TOKEN=$GOTIFY_TOKEN docker-compose up -d
+
+echo "[TEST:INFO] Set up Gotify application using token $GOTIFY_TOKEN"
+
+docker-compose exec backup backup
+
+tar -xf ./local/test.tar.gz -C /tmp && test -f /tmp/backup/app_data/offen.db
+echo "[TEST:PASS] Found relevant files in untared local backup."
+
+if [ "$(docker-compose ps -q | wc -l)" != "3" ]; then
+  echo "[TEST:FAIL] Expected all containers to be running post backup, instead seen:"
+  docker-compose ps
+  exit 1
+fi
+
+echo "[TEST:PASS] All containers running post backup."
+
+MESSAGE=$(curl -sSL http://admin:custom@localhost:8080/message | jq -r '.messages[0]')
+
+
+case "$MESSAGE" in
+  *"Successful test run, yay!"*)
+  echo "[TEST:PASS] Custom notification title was used"
+  ;;
+  *)
+  echo "[TEST:FAIL] Expected custom title to be used in notification, instead seen:"
+  echo $MESSAGE
+  exit 1
+  ;;
+esac
+
+case "$MESSAGE" in
+  *"Backing up /tmp/test.tar.gz succeeded."*)
+  echo "[TEST:PASS] Custom notification body was used"
+  ;;
+  *)
+  echo "[TEST:FAIL] Expected custom body to be used in notification, instead seen:"
+  echo $MESSAGE
+  exit 1
+  ;;
+esac
+
+docker-compose down --volumes