janaxs / blackjack

"use strict";

/* global describe it */

const assert = require("assert");

const CardDeck = require("../../src/cardDeck/cardDeck");

/**

 * Compare two integers.

 */

function compareInteger(a, b) {

    return a - b;

}

/**

 * Testsuite

 */

describe("Check CardDeck", function() {

    describe("use default card deck", function() {

        it("should be 104 cards", function() {

            let deck = new CardDeck();

            let numberOfCards = deck.getNumberOfCards();

            assert.equal(numberOfCards, 104);

        });

        it("id should be between 0 and 103", function() {

            let deck = new CardDeck();

            let cards = deck.showAllCardsById();

            assert.equal(cards.length, 104);

            assert.equal(cards[0], 0);

            assert.equal(cards[51], 51);

            assert.equal(cards[52], 0);

            assert.equal(cards[103], 51);

        });

        it("shuffle it", function() {

            let deck = new CardDeck();

            let numberOfCards;

            deck.shuffle();

            numberOfCards = deck.getNumberOfCards();

            assert.equal(numberOfCards, 104);

        });

        it("get all cards, one by one", function() {

            let deck = new CardDeck();

            let allCards = deck.showAllCardsById();

            let cardId;

            let shuffledCards = [];

            let equal;

            deck.shuffle();

            while ((cardId = deck.getCard()) !== undefined) {

                shuffledCards.push(cardId);

            }

            allCards.sort(compareInteger);

            shuffledCards.sort(compareInteger);

            equal = shuffledCards.length == allCards.length &&

                shuffledCards.every((element, index) => {

                    return element === allCards[index];

                });

            assert.equal(equal, true);

        });

    });

});