backend:deck.ts

This commit involves one preperatory commit : adding wild color to CardColors

Added deck generation function to initialize the deck according to given constraints

The function generates cards and push them the deck array generating cards of each color and also wild cards

Also have checked the deck composition with jest tests

Fixes :#1

backend/tests/deck.test.ts

@@ -1,9 +1,45 @@
-import { shuffle, makeCard } from '../uno-game-engine/deck';
+import {
+    getShuffledCardDeck,
+    makeCard,
+    shuffle,
+} from '../uno-game-engine/deck';
 describe('testing deck.ts', () => {
     test('makeCard', () => {
         const card = makeCard('number', 'blue', '3');
         expect(card.color).toBe('blue');
     });
+    test('getShuffledDeck', () => {
+        const deck = getShuffledCardDeck();
+        console.log(deck);
+    });
+});
+test('validateDeckComposition', () => {
+    const deck = getShuffledCardDeck();
+
+    const colorCount = { red: 0, yellow: 0, green: 0, blue: 0 };
+    const wildCount = { wild: 0 };
+    let totalCards = 0;
+
+    for (const card of deck) {
+        if (card.color in colorCount) {
+            colorCount[card.color]++;
+        } else if (card.color === 'wild') {
+            wildCount.wild++;
+        }
+        totalCards++;
+    }
+
+    // Verify total number of cards
+    expect(totalCards).toBe(108);
+
+    // Verify number of cards of each color
+    expect(colorCount.red).toBe(25);
+    expect(colorCount.yellow).toBe(25);
+    expect(colorCount.green).toBe(25);
+    expect(colorCount.blue).toBe(25);
+
+    // Verify number of wild cards
+    expect(wildCount.wild).toBe(8);
 });
 describe('shuffle function', () => {
     test('should change order of elements', () => {

backend/uno-game-engine/deck.ts

@@ -15,6 +15,7 @@ const values: CardValue[] = [
     'reverse',
     'draw2',
 ];
+
 const specialCards: CardValue[] = ['colchange', 'draw4'];
 const sameCardCount = [];
 /**