Basic given when then test helper
npm install given-when-then-jsjavascript
var given = require('given-when-then-js');
var expect = require('chai').expect;
//alternativley with ES6 via transpilers
//import given from 'given-when-then-js';
//import { expect } from 'chai';
it('runs in the most basic form', () => {
given(1)
.when(value => 2)
.then(value => value == 2);
});
it('should do a basic flow', () => {
var givenValue = 1;
var whenValue = 2;
given(givenValue, "given a basic value")
.when(value => {
expect(value).to.equal(givenValue);
/perform action and return result/
return whenValue;
}, "given value should be passed to when")
.then(value => {
/check if the result matches the expected result/
expect(value).to.equal(whenValue);
}, "when value should be passed to then");
});
``