Add test workflow.

config/docker/docker-compose.test.yaml

@@ -0,0 +1,45 @@
+#
+# Usage: docker-compose --env-file .env.test -f config/docker/docker-compose-test.yaml -p danbooru run -T danbooru
+#
+# Docker Compose file to create an instance of danbooru along with a test database and run the test suite.
+#
+# https://docs.docker.com/compose/compose-file/
+#
+
+version: '3'
+services:
+  danbooru:
+    build:
+      context: ../..
+      dockerfile: config/docker/Dockerfile.danbooru
+    environment:
+      - DATABASE_URL=postgresql://danbooru:danbooru@postgres/danbooru
+      - ARCHIVE_DATABASE_URL=postgresql://danbooru:danbooru@postgres/danbooru
+      - DANBOORU_SECRET_KEY_BASE=1234
+      - DANBOORU_AWS_SQS_ENABLED
+      - DANBOORU_TWITTER_API_KEY
+      - DANBOORU_TWITTER_API_SECRET
+      - DANBOORU_PIXIV_LOGIN
+      - DANBOORU_PIXIV_PASSWORD
+      - DANBOORU_NIJIE_LOGIN
+      - DANBOORU_NIJIE_PASSWORD
+      - DANBOORU_NICO_SEIGA_LOGIN
+      - DANBOORU_NICO_SEIGA_PASSWORD
+      - DANBOORU_TUMBLR_CONSUMER_KEY
+      - DANBOORU_DEVIANTART_CLIENT_ID
+      - DANBOORU_DEVIANTART_CLIENT_SECRET
+      - DANBOORU_RAKISMET_KEY
+      - DANBOORU_RAKISMET_URL
+      - DANBOORU_IP_REGISTRY_API_KEY
+      - DANBOORU_GOOGLE_MAPS_API_KEY
+    depends_on:
+      - postgres
+    user: root
+    entrypoint: ["bash", "-c", "apt-get -y install build-essential ruby-dev zlib1g-dev postgresql-server-dev-all git && config/docker/prepare-tests.sh && bin/rails test"]
+  postgres:
+    build:
+      context: .
+      dockerfile: Dockerfile.postgres
+    environment:
+      POSTGRES_USER: danbooru
+      POSTGRES_PASSWORD: danbooru