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code-coverage-explorer

v0.2.5

Published

Shows original source code of unused code coverage reports if source maps are available.

Downloads

2

Readme

code-coverage-explorer

Build Status

Shows original source code of unused code coverage reports if source maps are available.

⚠️ This is just a prototype. If you're interested in this tool and would like to see more polishing consider supporting me at Patreon. ⚠️

Install

Install this package globally via npm or yarn:

$ npm install --global code-coverage-explorer
# or
$ yarn global add code-coverage-explorer

Usage

After the installation you can use the code-coverage-explorer command like this:

$ code-coverage-explorer --file /path/to/coverage.json

This shows all files which have less than 50% of used code by default. If you want to change this threshold (e.g. set it to 10%) you can do it like this:

$ code-coverage-explorer --file /path/to/coverage.json --threshold 0.1

You can get a coverage.json as explained here.

Reports look like this:

"http://localhost:8080/some-path" is no JS file. Skipped.

"http://localhost:8080/config.js" has no source map. Skipped.

"http://localhost:8080/index.js" has 4 files with less than 50% of used code:
  Used code in "webpack:///shared/src/components/Logo/assets/internal-logo.svg": 0%
  Used code in "webpack:///shared/src/components/Auth/NoHashError.ts": 2%
  Used code in "webpack:///Users/pipo/workspace/some-project/node_modules/core-js/library/modules/_dom-create.js": 10%
  Used code in "webpack:///Users/pipo/workspace/some-project/node_modules/core-js/library/modules/_html.js": 11%

(Note: You can also use this package as a lib: require('code-coverage-explorer').check(require('/path/to/coverage.json')).)