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repeat-it

Run a Mocha BDD "it" test as many times as you want

NPM

Build status semantic-release js-standard-style

Why

You know a particularly flaky test can drive you crazy? This module makes it simple to run any test as many times as you want to figure out the flaky behavior.

Install

Requires Node.

npm install --save-dev repeat-it

Use

A Mocha / BDD test you want to repeat

before

describe('repeat-it', () => {
  it('repeated test', () => {})
})

after

const it = require('repeat-it')
describe('repeat-it', () => {
  it(10)('repeated test', () => {})
})

output:

  repeat-it
    ✓ 1/10 repeated test
    ✓ 2/10 repeated test
    ✓ 3/10 repeated test
    ✓ 4/10 repeated test
    ✓ 5/10 repeated test
    ✓ 6/10 repeated test
    ✓ 7/10 repeated test
    ✓ 8/10 repeated test
    ✓ 9/10 repeated test
    ✓ 10/10 repeated test

  10 passing (10ms)

Features

  • Supports it.only(n)(...) syntax to run single text N times
  • Supports it.skip syntax for skipping a test

Related projects

  • focha - Mocha wrapper that runs previously failed tests first
  • rocha - Runs Mocha unit tests but randomizes their order
  • snap-shot - Jest-like snapshot feature for any framework, including Mocha
  • My blog posts about testing

Small print

Author: Gleb Bahmutov <gleb.bahmutov@gmail.com> © 2017

License: MIT - do anything with the code, but don't blame me if it does not work.

Support: if you find any problems with this module, email / tweet / open issue on Github

MIT License

Copyright (c) 2017 Gleb Bahmutov <gleb.bahmutov@gmail.com>

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.