Sinon stub example

sinon-stub-example.js

'use strict';

var R = require('ramda');
var sinon = require('sinon');

var log = {};
log.warning = R.bind(console.warn, console);

sinon.stub(log, 'warning');
var args = 'this is a test';
log.warning(args);

console.log('called once:', log.warning.calledOnce);
console.log('called with:', log.warning.calledWith(args));

log.warning.restore();
log.warning('restored');