cypress-jest-coverage-merge

cypress-jest-coverage-merge

A helper to merge Cypress and Jest coverage reports into one report file.

This script is inspired by this example of merging Cypress & Jest reports: https://github.com/bahmutov/cypress-and-jest and https://github.com/transmissionsdev/merge-cypress-jest-coverag.

For better compatibility with multiple OS(Windows/Linux), this project uses nodejs APIs to handle files, such as copy/move/mkdir etc.

Usage

• Install

  npm i -D cypress-jest-coverage-merge
  

  Or

  yarn add -D cypress-jest-coverage-merge
  

• configure jest.config.js to set jest coverage report directory to tests/coverage/jest:

  ...
  // Indicates whether the coverage information should be collected while executing the test
  collectCoverage: true,
  // The directory where Jest should output its coverage files
  coverageDirectory: '<rootDir>/tests/coverage/jest',
  ...
  

• configure nyc in package.json to set Cypress coverage report directory to tests/coverage/cypress:

  ...
  "nyc": {
      "report-dir": "tests/coverage/cypress",
      "reporter": [
             "lcov",
             "json"
         ]
      }
  ...
  

• Run your Cypress tests and output coverage to a tests/coverage/cypress/ directory.
• Run your Jest tests and output coverage to a tests/coverage/jest directory.
• Run npx cypress-jest-coverage-merge and check the tests/coverage/reports directory for the merged report!