Created tests for Game class

api/tests/lib/game.test.js

@@ -0,0 +1,54 @@
+const Game = require("../../classes/Game");
+
+
+describe("Game", () => {
+    let game;
+
+    beforeEach(() => {
+        game = new Game();
+    });
+
+    describe("Initialization", () => {
+        test("should initialise with an empty players array", () => {
+        expect(game.players).toEqual([]);
+        });
+
+        test("should initialise with a target number between 1 and 100", () => {
+        expect(game.targetNumber).toBeGreaterThanOrEqual(1);
+        expect(game.targetNumber).toBeLessThanOrEqual(100);
+        });
+    });
+
+    describe("generateRandomNumber", () => {
+        test("should return a number between 1 and 100", () => {
+        const randomNumber = game.generateRandomNumber();
+        expect(randomNumber).toBeGreaterThanOrEqual(1);
+        expect(randomNumber).toBeLessThanOrEqual(100);
+        });
+
+        test("should generate different numbers on subsequent calls", () => {
+        const randomNumber1 = game.generateRandomNumber();
+        const randomNumber2 = game.generateRandomNumber();
+        expect(randomNumber1).not.toEqual(randomNumber2); // Not always true, but generally should be.
+        });
+    });
+
+    describe("addPlayer", () => {
+        test("should add a player to the players array", () => {
+        const user = { id: 1, name: "John" };
+        game.addPlayer(user);
+        expect(game.players).toContain(user);
+        });
+
+        test("should correctly add multiple players", () => {
+        const user1 = { id: 1, name: "John" };
+        const user2 = { id: 2, name: "Jane" };
+
+        game.addPlayer(user1);
+        game.addPlayer(user2);
+
+        expect(game.players).toHaveLength(2);
+        expect(game.players).toEqual(expect.arrayContaining([user1, user2]));
+        });
+    });
+});