如何在strapi框架内实现单元测试

Question

我正在尝试 Strapi，并希望创建一个通过单元测试验证的控制器。

如何在 Strapi 中设置单元测试？

我写了以下测试

test('checks entity inside boundary',async ()=> {
    ctx={};
    var result = await controller.findnearby(ctx);
    result = {};
    expect(result).anyting();
});

但是，在我的控制器中，我有访问全局 Strapi 对象的代码，这会导致此错误ReferenceError: strapi is not defined

   strapi.log.info('findNearby');
   strapi.log.info(ctx.request.query.lat);
   strapi.log.info(ctx.request.query.long);

Strapi 和测试的最佳实践是什么？

Answer 1

我通过创建一个助手成功地在 Strapi 中实现了测试

const Strapi = require("strapi"); 
// above require creates a global named `strapi` that is an instance of Strapi 

let instance; // singleton 

async function setupStrapi() {
  if (!instance) {
    await Strapi().load();
    instance = strapi; 
    instance.app
      .use(instance.router.routes()) // this code in copied from app/node_modules/strapi/lib/Strapi.js
      .use(instance.router.allowedMethods());
  }
  return instance;
}

module.exports = { setupStrapi };

您可以从现在开始获取所有控制器app.controllers并一一测试它们。

我的 API 端点示例测试（在 Jest 中）如下所示

const request = require("supertest");
const { setupStrapi } = require("./helpers/strapi");

// We're setting timeout because sometimes bootstrap can take 5-7 seconds (big apps)
jest.setTimeout(10000);

let app; // this is instance of the the strapi

beforeAll(async () => {
  app = await setupStrapi(); // return singleton so it can be called many times
});

it("should respond with 200 on /heartbeat", (done) => {
  request(app.server) // app server is and instance of Class: http.Server
    .get("/heartbeat")
    .expect(200) // expecting response header code to by 200 success
    .expect("Hello World!") // expecting reponse text to be "Hello World!"
    .end(done); // let jest know that test is finished
});

我试图在我的博客上介绍这个主题https://medium.com/qunabu-interactive/strapi-jest-testing-with-gitlab-ci-82ffe4c5715a