IstanbulJS

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Everyone’s favorite JS code coverage tool.

About this Repo

This monorepo contains the nuts and bolts utility libraries that facilitate IstanbulJS test coverage; Why a monorepo?

• it allows us to more easily test API changes across coupled modules, e.g., changes to istanbul-lib-coverage
  potentially have an effect on istanbul-lib-instrument.
• it gives us a centralized repo for discussions about bugs and upcoming features.

Where Should I Start

You’re probably actually looking for one of the following repos:

• nyc: the IstanbulJS 2.0 command line interface, providing painless coverage support for most popular testing frameworks.
• babel-plugin-istanbul: a babel plugin
  for instrumenting your ES2015+ code with Istanbul compatible coverage tracking.
• istanbul: the legacy 1.0 IstanbulJS interface (you should
  now consider instead using nyc or babel-plugin-istanbul).

Contributing

Contributing to the packages contained in this repo is easy:

1. after checking out, run npm install (this will run the lerna build).
2. to run all tests, simply run npm test in the root directory.
3. to run tests for a single package cd package/:name and run
   npm test within the package’s folder.