https://github.com/rbardini/jest-it-up

🌐📈 Automatically bump up global Jest thresholds whenever coverage goes above them
https://github.com/rbardini/jest-it-up

coverage global jest test testing threshold

Last synced: 3 months ago
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🌐📈 Automatically bump up global Jest thresholds whenever coverage goes above them

• Host: GitHub
• URL: https://github.com/rbardini/jest-it-up
• Owner: rbardini
• License: mit
• Created: 2020-04-29T15:21:58.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2024-07-30T05:47:23.000Z (3 months ago)
• Last Synced: 2024-07-30T11:27:49.216Z (3 months ago)
• Topics: coverage, global, jest, test, testing, threshold
• Language: JavaScript
• Homepage: https://npm.im/jest-it-up
• Size: 2.17 MB
• Stars: 62
• Watchers: 3
• Forks: 10
• Open Issues: 8
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-jest - jest-it-up

README

        
# jest-it-up

[![npm package version](https://img.shields.io/npm/v/jest-it-up)](https://www.npmjs.com/package/jest-it-up)

[![Build status](https://img.shields.io/github/workflow/status/rbardini/jest-it-up/Main)](https://github.com/rbardini/jest-it-up/actions)

[![Code coverage](https://img.shields.io/codecov/c/github/rbardini/jest-it-up.svg)](https://codecov.io/gh/rbardini/jest-it-up)

[![Dependencies status](https://img.shields.io/librariesio/release/npm/jest-it-up)](https://libraries.io/npm/jest-it-up)

Ensure incremental coverage gains are not lost, and positively reinforce good testing habits. Automatically bump up global Jest thresholds whenever coverage goes above them.

![Demo](demo.gif)

## Requirements

- Node.js 16+

- Conventional `jest.config.js` (`package.json` config unsupported)

- `json-summary` coverage report (see [usage](#usage))

## Installation

```console

npm install --save-dev jest-it-up

```

## Usage

jest-it-up exposes a standalone CLI tool (see [options](#options)), but you most likely want to use it in a post-test script.

Within `package.json`:

```js

{

  "scripts": {

    "test": "jest --coverage", // or set `collectCoverage` to `true` in Jest config

    "posttest": "jest-it-up" // must run from the same directory as `jest.config.js`

  }

}

```

within `jest.config.js`:

```js

module.exports = {

  coverageReporters: [

    'json-summary' // plus any other reporters, e.g. "lcov", "text", "text-summary"

  ],

  coverageThreshold: {

    global: {

      branches: 0, // or your current numbers

      functions: 0,

      lines: 0,

      statements: 0

    }

  }

}

```

Once tests finish running, jest-it-up will update configured thresholds to match higher coverage numbers, if any.

## Options

```console

$ jest-it-up --help

Usage: jest-it-up [options]

Options:

  -c, --config           path to a Jest config file (default: 'jest.config.js')

  -m, --margin         minimum threshold increase (default: 0)

  -t, --tolerance   threshold difference from actual coverage

  -i, --interactive            ask for confirmation before applying changes

  -s, --silent                 do not output messages

  -d, --dry-run                process but do not change files

  -v, --version                output the version number

  -p, --precision              number of threshold decimal places to persist

  -h, --help                   display help for command

```