docker-compose.test.yml

# docker-compose.test.yml
services:
  survey_api_test:
    build:
      context: ./api
      dockerfile: Dockerfile
    container_name: survey_api_test 
    volumes:
      - ./api:/root 
    working_dir: /root 
    environment:
      - MONGO_URL=mongodb://mongodb_test:27019 
      - DATABASE_NAME=survey_db_test 
      - SESSION_SECRET_KEY=a_secure_test_secret_for_sessions
    depends_on:
      - mongodb_test 
    command: >
      sh -c "
        echo 'Waiting for MongoDB (mongodb_test:27017 for DB $${DATABASE_NAME}) using mongosh...' &&
        # Loop until mongosh can connect and ping the server.
        # The --quiet flag suppresses mongosh startup messages.
        # The eval script explicitly quits with 0 on success, 1 on failure for the until loop.
        # Output is redirected to /dev/null once confirmed working to keep logs clean.
        until mongosh mongodb_test:27017/$${DATABASE_NAME} --quiet --eval 'if(db.runCommand({ ping: 1 }).ok) { quit(0); } else { quit(1); }' > /dev/null 2>&1; do
          echo 'MongoDB not ready yet... Retrying in 1s.' && sleep 1;
        done &&
        echo 'MongoDB is ready.' &&
        echo 'Running Pytest tests from /root/tests/ ...' &&
        pytest -n 0 -vv --color=yes tests/
      "
    stop_grace_period: 0s

  mongodb_test: 
    image: mongo:latest
    container_name: mongodb_test
    ports:
      - "127.0.0.1:27019:27019" 
    volumes:
      - mongodb_test_data:/data/db 
    restart: unless-stopped 
    stop_grace_period: 0s
    command: ["mongod", "--port", "27019"]

volumes:
  mongodb_test_data:
    driver: local