camo/test/util.test.js

A class-based ES6 ODM for Mongo-like databases.

'use strict';

const expect = require('chai').expect;
const deepTraverse = require('../lib/util').deepTraverse;

describe('Util', function() {

    describe('deepTraverse()', function() {
        it('should iterate over all keys nested in an object', function(done) {
            let object = { 'a': [{ 'b': { 'c': 3 } }] };

            let keysSeen = [];
            let valsSeen = [];
            let parentsSeen = [];

            deepTraverse(object, function(key, value, parent) {
                keysSeen.push(key);
                valsSeen.push(value);
                parentsSeen.push(parent);
            });

            expect(keysSeen).to.have.length(4);
            expect(keysSeen).to.include('a');
            expect(keysSeen).to.include('0');
            expect(keysSeen).to.include('b');
            expect(keysSeen).to.include('c');
            expect(valsSeen).to.have.length(4);
            expect(parentsSeen).to.have.length(4);
            expect(keysSeen[0]).to.be.equal('a');
            expect(parentsSeen[1]).to.be.equal(object.a);

            done();
        });
    });
});