https://github.com/rburgst/test-ts-jest

https://github.com/rburgst/test-ts-jest

Last synced: 2 days ago
JSON representation

• Host: GitHub
• URL: https://github.com/rburgst/test-ts-jest
• Owner: rburgst
• Created: 2022-09-27T10:45:19.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2023-02-01T10:30:05.000Z (almost 2 years ago)
• Last Synced: 2024-11-08T17:53:07.144Z (about 2 months ago)
• Language: TypeScript
• Size: 135 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
Sample repo showing a ts-jest problem with preact and preact-testing-library

To reproduce run

```

yarn install

yarn jest

```

You will get 

```

$ NODE_OPTIONS=--experimental-vm-modules jest

 FAIL  src/foo.test.tsx

  ● Test suite failed to run

    Must use import to load ES Module: /Users/user/test-ts-jest/node_modules/preact/dist/preact.mjs

    > 1 | import { createRef, FunctionComponent } from 'preact';

        | ^

      2 | import React from 'preact/compat';

      3 | import { useState } from 'preact/compat';

      4 |

      at Runtime.requireModule (node_modules/jest-runtime/build/index.js:943:21)

      at Object. (src/foo.tsx:1:1)

      at Object. (src/foo.test.tsx:1:1)

(node:23660) ExperimentalWarning: VM Modules is an experimental feature and might change at any time

(Use `node --trace-warnings ...` to show where the warning was created)

```