Jest Coverage Gate

Checking the coverage of changed and added files

Features

• Separate coverage threshold settings for new and changed files
• Ability to specify target branch relative to which diff will be calculated

Usage

1. Install:

npm i jest-coverage-gate -D

2. Add jest-coverage-gate to the coverageReporters list of your Jest configuration:

{
  coverageReporters: [
    "clover", "json", "lcov", "text", // default
    [
      'jest-coverage-gate',
      {
        since: 'develop', // origin/develop, OR origin/develop...HEAD, OR commitHash...commitHash
        modified: {
          branches: 50,
          functions: 50,
          lines: 50,
          statements: 50,
        },
        added: {
          branches: 80,
          functions: 80,
          lines: 80,
          statements: 80,
        },
      },
    ],
  ],
}

3. Run Jest:

jest --coverage