在 CLI 中运行时，Jest 测试不起作用

Question

我在测试 Nestjs 时遇到了奇怪的问题。

当我运行npm run test 时，大多数测试都失败了。一些变量变得未定义，嵌套无法解决依赖关系等。 但是当我从 WebStorm 面板运行 ALL TESTS 时，一切正常。

https://gist.github.com/hejkerooo/5a56ee2a7d78ce41cb390d1ece648933

  Nest can't resolve dependencies of the TrendService (?). Please make sure that the argument at index [0] is available in the _RootTestModule context.

      at Injector.lookupComponentInExports (node_modules/@nestjs/core/injector/injector.js:180:19)

Timeout - Async callback was not invoked within the 5000ms timeout specified by jest.setTimeout.Error: Timeout - Async callback was not invoked within the 5000ms timeout specified by jest.setTimeout.

      at mapper (node_modules/jest-jasmine2/build/queueRunner.js:25:45)

 TypeError: Cannot read property 'clear' of undefined

      17 |   beforeEach(async () => {
      18 |     jest.restoreAllMocks();
    > 19 |     await trendsRepository.clear();
         |                             ^
      20 |   });
      21 | 
      22 |   afterAll(async () => {


ReferenceError: You are trying to `import` a file after the Jest environment has been torn down.

(node:2633) UnhandledPromiseRejectionWarning: TypeError: Caught error after test environment was torn down

Answer 1

问题已解决 - 刚刚使用 jest.setTimeout 到 50000，工作正常。 我认为这是一个临时修复，但会深入研究它。