function chunkyMonkey(values, size) {
    let matrix = [];
    if (size >= values.length) {
        matrix.push(values);
    } else {
        for (let i = 0; i < values.length; i += size) {
            let subarr = values.slice(i, i + size);
            console.log("subarr>>>", i, size, values.length, subarr);
            matrix.push(subarr);
        }        
    }
    return matrix;
}

/**
* Test Suite 
*/
describe('chunkyMonkey()', () => {
    it('returns a 2d array containing one subarray with all values if values length is smaller than size', () => {
        const values = ["a"];
        const size = 2;
        const result = chunkyMonkey(values, size);
        console.log("result: ", result);
        expect(result).toEqual([["a"]]);
    });
    it('returns a 2d array containing one subarray with all values if values length is equal to size', () => {
        const values = ["a", "b"];
        const size = 2;
        const result = chunkyMonkey(values, size);
        console.log("result: ", result);
        expect(result).toEqual([["a", "b"]]);
    });
    it('returns a 2d array containing 2 subarrays of size n if values length is equal to 2n', () => {
        const values = ["a", "b", "c", "d"];
        const size = 2;
        const result = chunkyMonkey(values, size);
        console.log("result: ", result);
        expect(result).toEqual([["a", "b"], ["c", "d"]]);
    });

    it('returns a 2d array containing one subarray of size n followed by a subarray of remainder if values length is less than 2n', () => {
        const values = [0, 1, 2, 3, 4, 5];
        const size = 4;
        const result = chunkyMonkey(values, size);
        console.log("result: ", result);
        expect(result).toEqual([[0, 1, 2, 3], [4, 5]]);
    });
    it('returns a 2d array containing x subarrays of size n followed if values contains exaclty x*n elements', () => {
        const values = [0, 1, 2, 3, 4, 5];
        const size = 2;
        const result = chunkyMonkey(values, size);
        console.log("result: ", result);
        expect(result).toEqual([[0, 1], [2, 3], [4, 5]]);
    });
    it('returns a 2d array containing x-1 subarrays of size n followed by a subarray of remainder if values contains less than x*n elements', () => {
        const values = [0, 1, 2, 3, 4];
        const size = 2;
        const result = chunkyMonkey(values, size);
        console.log("result: ", result);
        expect(result).toEqual([[0, 1], [2, 3], [4]]);
    });
});