Create loyalty.test.js

tests/loyalty.test.js

@@ -0,0 +1,25 @@
+// tests/loyalty.test.js
+const Loyalty = require('../loyalty'); // Assuming you have a loyalty module
+
+describe('Loyalty Module', () => {
+    let loyalty;
+
+    beforeEach(() => {
+        loyalty = new Loyalty();
+    });
+
+    test('should add points correctly', () => {
+        loyalty.addPoints(100);
+        expect(loyalty.getPoints()).toBe(100);
+    });
+
+    test('should redeem points correctly', () => {
+        loyalty.addPoints(100);
+        loyalty.redeemPoints(50);
+        expect(loyalty.getPoints()).toBe(50);
+    });
+
+    test('should not allow redeeming more points than available', () => {
+        expect(() => loyalty.redeemPoints(50)).toThrow('Insufficient points');
+    });
+});