iterableAndIterators.test.js

describe('DAY 5: Iterable/Iterator', () => {

    it(`get the iterator function of a String`, () => {
        let string = 'hello';
        let theIteratorFunction;

        expect(theIteratorFunction).toBeInstanceOf(Object);
        expect(theIteratorFunction).toBeInstanceOf(Function);

    });

    it(`get the iterator object returned by the iterator function of a String`, () => {
        let string = 'hello';
        let theIteratorObject;

        expect(theIteratorObject).toBeInstanceOf(Object);

    });

    it(`get the string representation
        of the iterator object returned by the iterator function of a String`, () => {
        let string = 'hello';
        let theIteratorObjectCoercedToString;

        expect(theIteratorObjectCoercedToString).toBe('[object String Iterator]');

    });

    it(`get the next method returned by the iterator function of a String`, () => {
        let string = 'hello';
        let theIteratorNextMethod;

        expect(theIteratorNextMethod).toBeInstanceOf(Object);
        expect(theIteratorNextMethod).toBeInstanceOf(Function);

    });

    it(`get at least 1 value returned by the next method returned by the iterator function of a String`, () => {
        let string = 'hello';
        let theIteratorNextMethodValue;

        expect(theIteratorNextMethodValue).toBe('h');

    });

    it(`make your own test to get all values from a String using the iterable protocol`, () => {
        // I'm throwing and error to make it fail, remove it and add your code
        throw Error('do not cheat 3:) ');
    });
});