https://github.com/posva/jest-mock-warn

Mock console.log warn calls and assert their calls
https://github.com/posva/jest-mock-warn

console jest mock test vue

Last synced: about 1 month ago
JSON representation

Mock console.log warn calls and assert their calls

• Host: GitHub
• URL: https://github.com/posva/jest-mock-warn
• Owner: posva
• License: mit
• Created: 2020-02-05T16:33:47.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2020-06-23T08:02:19.000Z (over 4 years ago)
• Last Synced: 2024-12-30T15:44:26.472Z (about 1 month ago)
• Topics: console, jest, mock, test, vue
• Language: JavaScript
• Size: 9.77 KB
• Stars: 10
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Contributing: .github/CONTRIBUTING.md
  • License: LICENSE
  • Code of conduct: .github/CODE_OF_CONDUCT.md

Awesome Lists containing this project

README

        
# jest-mock-warn [![npm package](https://badgen.net/npm/v/jest-mock-warn)](https://www.npmjs.com/package/jest-mock-warn)

> mock `console.warn`

## Installation

```sh

yarn add -D jest-mock-warn

```

## Usage

```js

import { mockWarn } from 'jest-mock-warn'

function myFunction() {

  if (!arguments.length) console.warn('provide an argument')

}

describe('my tests', () => {

  mockWarn()

  it('warns when called without arguments', () => {

    myFunction()

    expect('provide an argument').toHaveBeenWarned()

    expect('provide an argument').toHaveBeenWarnedTimes(1)

    expect('provide an argument').toHaveBeenLastWarned()

  })

})

```

## API

- `toHaveBeenWarned()`

- `toHaveBeenWarnedLast()`

- `toHaveBeenWarnedTimes(n: number)`

## License

[MIT](http://opensource.org/licenses/MIT)