k6 常见测试模式说明

k6 对于常见的测试进行了多种说明，同时也有比较详细的讲解还是很不错的

常见参考测试类型

简单说明

  • （smoke test） 冒烟测试， 验证系统的最小负载，而不会出现任何问题
  • （load tet）负载测试， 主要根据并发用户以及每秒请求评估系统性能
  •   (stress test,spike test) 压力测试&&峰值测试，评估系统极限以及极端条件下的稳定性
  •   (soak test）浸泡测试，系统长时间稳定性测试

冒烟测试实例

  • 参考配置
import http from 'k6/http';
import { check, group, sleep, fail } from 'k6';
 
export let options = {
  vus: 1, // 1 user looping for 1 minute
  duration: '1m',
 
  thresholds: {
    http_req_duration: ['p(99)<1500'], // 99% of requests must complete below 1.5s
  },
};
 
const BASE_URL = 'https://test-api.k6.io';
const USERNAME = 'TestUser';
const PASSWORD = 'SuperCroc2020';
 
export default () => {
  let loginRes = http.post(`${BASE_URL}/auth/token/login/`, {
    username: USERNAME,
    password: PASSWORD,
  });
 
  check(loginRes, {
    'logged in successfully': (resp) => resp.json('access') !== '',
  });
 
  let authHeaders = {
    headers: {
      Authorization: `Bearer ${loginRes.json('access')}`,
    },
  };
 
  let myObjects = http.get(`${BASE_URL}/my/crocodiles/`, authHeaders).json();
  check(myObjects, { 'retrieved crocodiles': (obj) => obj.length > 0 });
 
  sleep(1);
};
 

负载测试

  • 参考配置
import http from 'k6/http';
import { check, group, sleep } from 'k6';
 
export let options = {
  stages: [
    { duration: '5m', target: 100 }, // simulate ramp-up of traffic from 1 to 100 users over 5 minutes.
    { duration: '10m', target: 100 }, // stay at 100 users for 10 minutes
    { duration: '5m', target: 0 }, // ramp-down to 0 users
  ],
  thresholds: {
    http_req_duration: ['p(99)<1500'], // 99% of requests must complete below 1.5s
    'logged in successfully': ['p(99)<1500'], // 99% of requests must complete below 1.5s
  },
};
 
const BASE_URL = 'https://test-api.k6.io';
const USERNAME = 'TestUser';
const PASSWORD = 'SuperCroc2020';
 
export default () => {
  let loginRes = http.post(`${BASE_URL}/auth/token/login/`, {
    username: USERNAME,
    password: PASSWORD,
  });
 
  check(loginRes, {
    'logged in successfully': (resp) => resp.json('access') !== '',
  });
 
  let authHeaders = {
    headers: {
      Authorization: `Bearer ${loginRes.json('access')}`,
    },
  };
 
  let myObjects = http.get(`${BASE_URL}/my/crocodiles/`, authHeaders).json();
  check(myObjects, { 'retrieved crocodiles': (obj) => obj.length > 0 });
 
  sleep(1);
};

压力&&峰值测试

  • 压力
import http from 'k6/http';
import { sleep } from 'k6';
 
export let options = {
  stages: [
    { duration: '2m', target: 100 }, // below normal load
    { duration: '5m', target: 100 },
    { duration: '2m', target: 200 }, // normal load
    { duration: '5m', target: 200 },
    { duration: '2m', target: 300 }, // around the breaking point
    { duration: '5m', target: 300 },
    { duration: '2m', target: 400 }, // beyond the breaking point
    { duration: '5m', target: 400 },
    { duration: '10m', target: 0 }, // scale down. Recovery stage.
  ],
};
 
export default function () {
  const BASE_URL = 'https://test-api.k6.io'; // make sure this is not production
 
  let responses = http.batch([
    [
      'GET',
      `${BASE_URL}/public/crocodiles/1/`,
      null,
      { tags: { name: 'PublicCrocs' } },
    ],
    [
      'GET',
      `${BASE_URL}/public/crocodiles/2/`,
      null,
      { tags: { name: 'PublicCrocs' } },
    ],
    [
      'GET',
      `${BASE_URL}/public/crocodiles/3/`,
      null,
      { tags: { name: 'PublicCrocs' } },
    ],
    [
      'GET',
      `${BASE_URL}/public/crocodiles/4/`,
      null,
      { tags: { name: 'PublicCrocs' } },
    ],
  ]);
 
  sleep(1);
}
  • 峰值测试
import http from 'k6/http';
import { sleep } from 'k6';
 
export let options = {
  stages: [
    { duration: '10s', target: 100 }, // below normal load
    { duration: '1m', target: 100 },
    { duration: '10s', target: 1400 }, // spike to 1400 users
    { duration: '3m', target: 1400 }, // stay at 1400 for 3 minutes
    { duration: '10s', target: 100 }, // scale down. Recovery stage.
    { duration: '3m', target: 100 },
    { duration: '10s', target: 0 },
  ],
};
export default function () {
  const BASE_URL = 'https://test-api.k6.io'; // make sure this is not production
 
  let responses = http.batch([
    [
      'GET',
      `${BASE_URL}/public/crocodiles/1/`,
      null,
      { tags: { name: 'PublicCrocs' } },
    ],
    [
      'GET',
      `${BASE_URL}/public/crocodiles/2/`,
      null,
      { tags: { name: 'PublicCrocs' } },
    ],
    [
      'GET',
      `${BASE_URL}/public/crocodiles/3/`,
      null,
      { tags: { name: 'PublicCrocs' } },
    ],
    [
      'GET',
      `${BASE_URL}/public/crocodiles/4/`,
      null,
      { tags: { name: 'PublicCrocs' } },
    ],
  ]);
 
  sleep(1);
}

浸泡测试

  • 参考
import http from 'k6/http';
import { sleep } from 'k6';
 
export let options = {
  stages: [
    { duration: '2m', target: 400 }, // ramp up to 400 users
    { duration: '3h56m', target: 400 }, // stay at 400 for ~4 hours
    { duration: '2m', target: 0 }, // scale down. (optional)
  ],
};
 
const API_BASE_URL = 'https://test-api.k6.io';
 
export default function () {
  http.batch([
    ['GET', `${API_BASE_URL}/public/crocodiles/1/`],
    ['GET', `${API_BASE_URL}/public/crocodiles/2/`],
    ['GET', `${API_BASE_URL}/public/crocodiles/3/`],
    ['GET', `${API_BASE_URL}/public/crocodiles/4/`],
  ]);
 
  sleep(1);
}

说明

以上内容来自官方文档，还是很不错的，也是我们进行测试值得参考的流程

参考资料

https://k6.io/docs/test-types/introduction/

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原文地址：https://www.cnblogs.com/rongfengliang/p/14642685.html