chore: added test case to check if skus are stored in localstorage

src/payment/checkout/Checkout.test.jsx

@@ -103,6 +103,16 @@ describe('<Checkout />', () => {
       expect(store.getActions().pop()).toEqual(submitPayment({ method: 'paypal' }));
     });
 
+    it('should call submitPayment and store skus in localStorage when handleSubmitPayPal is called', async () => {
+      const paypalButton = await screen.findByTestId('PayPalButton');
+      fireEvent.click(paypalButton);
+
+      expect(store.getActions().pop()).toEqual(submitPayment({ method: 'paypal' }));
+      // Check if skus are stored in localStorage
+      const storedSkus = JSON.parse(localStorage.getItem('skus'));
+      expect(storedSkus.length).toBeGreaterThan(0);
+    });
+
     // Apple Pay temporarily disabled per REV-927 - https://github.com/openedx/frontend-app-payment/pull/256
 
     it('submits and tracks the payment form', () => {

src/setupTest.js

@@ -18,3 +18,20 @@ mergeConfig({
   APPLE_PAY_MERCHANT_CAPABILITIES: process.env.APPLE_PAY_MERCHANT_CAPABILITIES && process.env.APPLE_PAY_MERCHANT_CAPABILITIES.split(','),
   WAFFLE_FLAGS: {},
 });
+
+const localStorageMock = jest.fn(() => {
+  let store = {};
+  return {
+    getItem: (key) => (store[key] || null),
+    setItem: (key, value) => {
+      store[key] = value.toString();
+    },
+    clear: () => {
+      store = {};
+    },
+    removeItem: (key) => {
+      delete store[key];
+    },
+  };
+})();
+Object.defineProperty(window, 'localStorage', { value: localStorageMock });