paratest

parameterize your javascript tests

what if you never had to write a describe block again? what would you do with all the extra time saved?

usage

require paratest in your spec file and give it an array of tests to run

const paratest = require('paratest');
const compute = require('../src/compute');
 
const tests = [
  {
    subject: compute.sum,
    cases: [
      {
        name: "works",
        args: [1, 2],
        result: 3
      }, {
        name: "works with floats",
        args: [1.0, 2],
        result: 3.0
      }
    ]
  }, {
    subject: compute.mult,
    cases: [
      {
        name: "works",
        args: [1, 2],
        result: 2
      }, {
        name: "works with floats",
        args: [1.0, 2],
        result: 2.0
      }
    ]
  }
];
 
paratest("compute", tests);

compatibility

jasmine and jest work out of the box. to use mocha w/ chai, simply pass in a function as the third argument to paratest that does the assertion of your choice.

const expect = require('chai').expect;
 
...
 
paratest(
  "compute",
  tests,
  (expected, actual) => expect(actual).to.deep.equal(expected)
);