kevinqdang/test/index.spec.js

An npm functional programming library project

var 
    expect = require('chai').expect,
    sinon = require('sinon'),
    lodown = require('../index'),
    customers = require('./fixtures/customers.json');

describe('lodown', function() {
    describe('each', function() {
        it('should iterate an Array, applying action to each element, index of the element, and the collection', function() {
            var action = sinon.spy();
            lodown.each(customers, action);
            expect(action.callCount).to.equal(customers.length);
            customers.forEach(function(customer, index){
               expect(action.calledWith(customer, index, customers)).to.be.true;
            });
        });
   
        it('should iterate an Object, applying action for each value, key of value, and Object', function() {
            var action = sinon.spy();
            var customer = customers[0];
            lodown.each(customer, action);
            expect(action.callCount).to.equal(Object.keys(customer).length);
            for(var key in customer) {
              expect(action.calledWith(customer[key], key, customer)).to.be.true;
            }
        });
    });
});