Generate code coverage for any webpage
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extension
reporter
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README.md

README.md

What is this?

This is an extension to an old version of chrome + a custom istanbul reporter. This combo gives you the power to view what JS gets evaluated on any website.

image

Installation

  1. Download an old version of chrome Mac / Win
  • The reason why we have to use an old version is because we are utilizing a cool API chrome used to have to preprocess any JS file before it gets evaluated by v8. This feature was reverted here.
  1. Download this repo and extract it somewhere
  2. Open a prompt in the reporter directory
  3. npm i
  4. Run the old chrome version
  5. Navigate to chrome://extensions and enable developer mode
  6. Click "Load unpacked extension..." and select the extension folder from the repo

Example Usage

  1. Visit http://news.ycombinator.com/.
  2. Open up dev tools.
  3. Click on the get coveragez button.
  4. The page will reload, wait for it to complete.
  5. Click on the copy button.
  6. Run pbpaste > ycombinator-data.
  7. cd reporter.
  8. node gen_report.js ../ycombinator-data
  9. open ./reporter/html-report/index.html to view the report