Chai Custom Matcher

chai_custom_matcher.js

/*
Chai - Add CustomMatchers

usage: 
var CustomMatchers = require('./support/friendly_news_path_matcher');
chai.use(CustomMatchers);

expect('/materia/FooBar').to.be.a.friendlyNewsPath();
*/

'use strict';

var CustomMatchers = function sinonChai(chai) {
  chai.Assertion.addMethod('friendlyNewsPath', function () {
    var obj = this._obj;

    var expectedMessage    = 'expected #{this} to seems like "/materia/:editorial/:slug"';
    var notExpectedMessage = 'expected #{this} to not seems like "/materia/:editorial/:slug"';

    var paths = obj.split('/');
    var assertion = paths.length === 3 && paths[0] === '' && paths[1] === 'materia' && paths[2].match(/^.{1,}/);

    this.assert(assertion, expectedMessage, notExpectedMessage, '/materia/:editorial/:slug', obj);
  });
};

module.exports = CustomMatchers;