小编Ste*_*hen的帖子

我按照文档中的打字稿吞咽：https : //rollupjs.org/guide/en#gulp

这是我的 gulp 文件：

const gulp = require("gulp");
const rollup = require("rollup");
const rollupTypescript = require("rollup-plugin-typescript");

gulp.task("build", () => {
  return rollup
    .rollup({
      input: "./main.ts",
      plugins: [rollupTypescript()]
    })
    .then(bundle => {
      return bundle.write({
        file: "./main.js",
        format: "umd",
        name: "library",
        sourcemap: true
      });
    });
});

Error: Cannot find module 'tslib/tslib.es6.js' from 'C:\projets\Tests\rollup\node_modules\rollup-plugin-typescript\dist'
    at Function.module.exports [as sync] (C:\projets\Tests\rollup\node_modules\resolve\lib\sync.js:58:15)
    at typescript (C:\projets\Tests\rollup\node_modules\rollup-plugin-typescript\dist\rollup-plugin-typescript.cjs.js:109:29)
    at gulp.task (C:\projets\Tests\rollup\gulpfile.js:9:17)
    at taskWrapper (C:\projets\Tests\rollup\node_modules\undertaker\lib\set-task.js:13:15)
    at bound (domain.js:301:14)
    at runBound (domain.js:314:12)
    at asyncRunner (C:\projets\Tests\rollup\node_modules\async-done\index.js:55:18)
    at _combinedTickCallback (internal/process/next_tick.js:131:7) …

当两者看起来完全相同时，Jest 会认为这不完全相同吗？

所以这是我用来进行测试的代码，它基本上只是一个调用事件发射器的函数，在事件发射器中，如果日期无效，我会按原样设置：

  const datepickerComponent: Datepicker = new Datepicker();

  const mockEvent = {
    target: {
      classList: {
        remove: jest.fn(),
        add: jest.fn(),
      },
      value: '01-01-197',
    },
  } as unknown as InputEvent;

  datepickerComponent.onInput(mockEvent);

  const emitMock: jest.Mock = jest.fn();
  datepickerComponent.dsdDatepickerInputChange = { emit: emitMock } as unknown as EventEmitter<dsdDatepickerInputChangeEvent>;

  // when
  datepickerComponent.onInput(mockEvent);

  const dateValue = new Date('197-01-01T00:00:00');

  // then
  expect(emitMock).toHaveBeenCalledWith({ value: '197-01-01', valueAsDate: dateValue });