// APP
import { ArrayCollection } from './ArrayCollection';
import { Collection } from './Collection';

describe('Services: ArrayCollection', () => {

    describe('Numeric', () => {
        let collection: Collection<number>;
        beforeEach(() => {
            collection = new ArrayCollection<number>([1, 2, 3]);
        });
        it('should instantiate correctly', () => {
            expect(collection.source).toEqual([1, 2, 3]);
            expect(collection.length).toBe(3);
            expect(collection.total).toBe(3);
        });

        it('should add an item', () => {
            collection.addItem(4);
            expect(collection.toArray()).toEqual([1, 2, 3, 4]);
        });

        it('should add items', () => {
            collection.addItems([4, 5]);
            expect(collection.toArray()).toEqual([1, 2, 3, 4, 5]);
        });

        xit('should remove items', () => {
            collection.removeItem(3);
            expect(collection.toArray()).toEqual([1, 2]);
        });

        it('should output as an array', () => {
            expect(collection.toArray()).toEqual([1, 2, 3]);
        });

    });

    describe('Objects', () => {
        let collection: Collection<any>;
        let source:Array<any> = [
            { id: 1 },
            { id: 2 },
            { id: 3 }
        ];
        beforeEach(() => {
            collection = new ArrayCollection<any>(source);
        });
        it('should instantiate correctly', () => {
            expect(collection.source).toEqual(source);
            expect(collection.length).toBe(3);
            expect(collection.total).toBe(3);
        });

        it('should add an item', () => {
            collection.addItem({ id: 4 });
            expect(collection.length).toBe(4);
        });

        xit('should add items', () => {
            collection.addItems([{ id: 4 }, { id: 5 }]);
            expect(collection.length).toBe(5);
        });

        xit('should remove items', () => {
            collection.removeItem({id: 3});
            expect(collection.length).toBe(2);
        });

        it('should output as an array', () => {
            expect(collection.toArray()).toEqual(source);
        });

    });
});