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jest-matcher-one-of

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jest-matcher-one-of

A Jest matcher to test if a value is one of many (like enums)


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jest-matcher-one-of

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A Jest matcher (toBeOneOf) to test if a value is one of many (like enums).

Installation

  1. Add the package

    yarn add jest-matcher-one-of --dev
    npm install jest-matcher-one-of --save-dev
    
  2. Require the package at the root of your test files

    require('jest-matcher-one-of');
    import 'jest-matcher-one-of'; // Using ES6 w/ Babel or TypeScript
    

Usage

expect(1).toBeOneOf([1, 2]);
expect(1).not.toBeOneOf([2, 3, 4]);
expect(1).toBeOneOf(1); // Also forgiving for non-array values

Contributing

Get the source code and run the tests.

$ git clone git@github.com:d4nyll/jest-matcher-one-of.git
$ yarn        # or npm install
$ yarn test   # or npm test

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Last updated on 13 Jul 2019

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