jest-expect-error

The missing expect.error(String|RegExp) from jest as expectError(String|RegExp)

Chainable utility to assemble URLs from templates

Installation

npm install --save jest-expect-error

Usage

const { expectError } = require('jest-expect-error')
const stub = jest.fn()
const error = new Error('My Custom Error')
stub(error)
expect(stub).toHaveBeenCalledWith(expectError(/custom error/i))
expect(stub).toHaveBeenCalledWith(expectError('My Custom Error'))
expect(stub).toHaveBeenCalledWith(expectError())

Why

If you are here you probably already know why: expect.any(Error) does not always work due to sandboxing and gives weird errors like "expected Any<Error> but got [Error: some error]"

Test

Tests are written with jest. You can run the tests with npm test.

Contributing

Anyone is welcome to submit issues and pull requests

License

MIT

Copyright (c) 2018 Florent Jaby

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.