// 300초 동안 1초에 10명의 새로운 virtual user가 생성됨
phases:
  - duration: 300
    arrivalRate: 10
    name: Warm up phase

• duration - 시나리오를 실행할 시간

• arrivalRate - 1초당 실행할 횟수

  ⇒ duration X arrivalRate = 더미 클라이언트의 개수

• virtual user

  • a simulation of a real user (or a client) using the service
    • ex) HTTP-based 서비스를 테스팅하는 경우, 각각의 virtual user는 독립적인 TCP connection을 유지
  • 각 virtual user 는 테스트 시나리오 중 하나를 택하여 끝까지 실행. duration은 모든 virtual user들이 테스트 시나리오를 완료하는데 걸리는 시간을 설정해놓은 것

Testing Socket.IO

scenarios:
  - name: My Socket.IO test
    engine: socketio # Enable the Socket.IO engine
    flow:
      - emit:
          channel: "echo"
          data: "Hello world!"

Scenario actions and configuration

• 테스트에 쓸 수 있는 HTTP actions

• emit

  • emit action이 제공하는 특성들
    • channel - the name of Socket.IO channel to emit an event
    • data - data to emit
    • namespace - optional namespace to use for emitting the event

• Socket.IO acknowledgements & Response Validation

  • response - Optional object if you want to wait for a response
    • channel - The name of the channel where the response is received
    • data - The data to verify is in the response.
  • acknowledge - Optional object if you want to wait for an acknowledgement
    • data - Match the response exactly to the value provided
    • match - Match the response with a JSONPath expression. This attribute expects an object with two attributes:
      • json - The part of the response to compare.
      • value - The expected value.

  Ex 1) Emit an event & validate a response

  config:
    target: "<https://socketio.test/>"
    phases:
      - duration: 60
        arrivalRate: 25
  
  scenarios:
    - name: "Emit an event"
      engine: socketio
      flow:
        - emit:
            channel: "echo"
            data: "Hello from Artillery"
            response:
              channel: "echoResponse"
              data: "Hello from Artillery"
  

  Ex 2) Emit an event & validate an acknowledgement

  config:
    target: "<https://socketio.test/>"
    phases:
      - duration: 60
        arrivalRate: 25
  
  scenarios:
    - name: "Emit and validate acknowledgement"
      engine: socketio
      flow:
        - emit:
            channel: "userDetails"
            acknowledge:
              match:
                json: "$.0.name"
                value: "Artillery"
  

  Ex 3) Mixing in HTTP Actions

  config:
    target: "<http://lab.artillery.io>"
  scenarios:
    - engine: "socketio"
      flow:
        - get:
            url: "/movies/10"
            capture:
              - json: "$.title"
                as: "title"
              - json: "$.genre"
                as: "genre"
        - log: "Emitting captured values: {{ title }}, {{ genre }}"
        - emit:
            channel: "echo"
            data: "{{title}}"
            # validate the received response
            response:
              channel: "echoResponse"
              data: "{{title}}"
        - emit:
            channel: "echo"
            data: "{{genre}}"
            response:
              channel: "echoResponse"
              data: "{{genre}}"
        - think: 1
        - emit:
            channel: "echo"
            data: "do not care about the response"
        - emit:
            channel: "echo"
            data: "still do not care about the response"
        - think: 1
  

  SuperREPL

  [Artillery] Node 환경 스트레스 테스트 (+ socket.io)