theZieger / utilitiesjs

describe('utilities.toObject', function() {

    describe('failing tests', function() {

        it("should fail because the arr parameter is not an Array", function() {

            expect(utilities.toObject.bind(null, {})).toThrowError(TypeError);

        });

        it("should fail because the mapBy not of type String and not falsy", function() {

            expect(utilities.toObject.bind(null, [], {})).toThrowError(TypeError);

        });

    });

    describe('array of primitives toObject', function() {

        // test example from README.md

        var states = ['Sachsen', 'Sachsen-Anhalt', 'Berlin', 'Hamburg'];

        var statesObject = utilities.toObject(states);

        // end test example from README.md

        it("should be able to access object by index", function() {

            expect(statesObject[0]).toEqual('Sachsen');

        });

        it("should have 4 keys", function() {

            expect(Object.keys(statesObject).length).toEqual(4);

        });

    });

    describe('array of objects toObject', function() {

        // test example from README.md

        var news = [

            {

                id: 12001,

                headline: 'Tiger goes limp',

                subHeadline: 'Pulls out after 9 holes'

            },{

                id: 666,

                headline: 'Croc has beef with cow',

                subHeadline: ''

            },{

                id: 1337,

                headline: 'Germans wurst at penalties',

                subHeadline: 'New stats prove England are better from the spot'

            }

        ];

        var newsObject = utilities.toObject(news, 'id');

        // end test example from README.md

        it("should be able to access object by ID", function() {

            expect(newsObject[1337].headline).toEqual('Germans wurst at penalties');

        });

        it("should have 3 keys", function() {

            expect(Object.keys(newsObject).length).toEqual(3);

        });

    });

});