Simple helper to use JSCheck generated tests inside Mocha test runner

Mocha_JSCheck.js

var isArray = require( '../../src/checkers/isArray' ) // my function to test
  , JSC     = require( 'jscheck' )
  , _       = require( 'lodash' )
  , $       = require( 'jquery' )
  , chai    = require( 'chai' )
  , expect  = chai.expect;

function JSC_it ( name, predicate, signature ) {
    it( name, function ( done ) {
        JSC.claim( name, function ( verdict ) {
            var args = _.slice( arguments, 1 );
            return verdict( predicate.apply( args ) );
        }, signature );

        JSC.on_result(function ( result ) {
            expect( result.ok ).to.be.true;
            done();
        });
        JSC.check();
    });
};

describe( 'isArray', function () {
    JSC_it( 'should be compatible with Array.isArray() method', function ( el ) {
        return Array.isArray( el ) === isArray( el );
    }, [ JSC.any() ]);
});

Thanks for this helper. I'm new to JSCheck, and I'm glad it can be run by mocha. I wasn't able to get it to work as written. Here's what I ended up with using ES2015. One significant difference is that the claim is passed to the check function, so check will only run for this claim and not others.

function JSC_it ( name, predicate, signature ) {
  it(name, done => 
    JSC
      .on_result( result => ( expect(result.ok).to.be.true, done() ) )
      .check( JSC.claim( name, predicate, signature ) )
  );
};