Rockford is a tool that calculates DbC code coverage for clients using simple-assert. It is a very basic tool. It assumes that you are going to play nicely with it, and not try to trick or confuse it. The central algorithm counts functions and instances of pre and post callees inside those functions. Once it has these counts it will compare, at file and file collection levels, the number of pre and post callees with the number of functions. It doesn't check to see whether or not you've doubled up pre or post conditions, or any other jankiness. It assumes you will be a good citizen.

At the proverbial some point, Rockford may be improved to be a bit more persnicketty, particular, and specific.

• Rockford uses Esprima for JavaScript parsing.
• Rockford uses Estraverse to navigate the AST returned by Esprima.

$ npm install rockford -D

You should then setup a .rockford-file config in the root of your application. The config takes two params:

{
 "glob": "test/*.js", // A glob, or array of globs of files to analyze
 "sanityLevel": 0.8 // A decimal representing what determines a sane level of coverage
}

After that, the easiest way to run Rockford is as a script from your package.json:

"scripts": {
  "coverage": "rockford"
}

Before filing an issue, please be sure to read the existing list of issues, to avoid submitting duplicates.

MIT