Add tests to make sure the cart updates as expected.

client/my-sites/checkout/src/test/wp-checkout-order-summary.tsx

@@ -447,4 +447,57 @@ describe( 'WPCheckoutOrderSummary', () => {
 			} );
 		} );
 	} );
+
+	describe( 'MemoizedCheckoutSummaryFeaturedList', () => {
+		test( 'Should update on cart uupdate', async () => {
+			const firstProduct = convertProductSlugToResponseProduct( PRODUCT_AKISMET_FREE );
+			const firstProductFeatures = getAkismetProductFeatures(
+				firstProduct,
+				identity as translateType
+			);
+
+			const cartChanges = {
+				products: [ firstProduct ],
+				cart_generated_at_timestamp: 1737356248,
+			};
+
+			const { rerender } = render(
+				<QueryClientProvider client={ queryClient }>
+					<MyCheckoutSummary cartChanges={ cartChanges } />
+				</QueryClientProvider>
+			);
+
+			await waitFor( () => {
+				firstProductFeatures.map( ( feature ) => {
+					expect( screen.queryByText( feature ) ).toBeInTheDocument();
+				} );
+			} );
+
+			const secondProduct = convertProductSlugToResponseProduct( PRODUCT_JETPACK_BOOST );
+			const secondProductFeatures = getJetpackProductFeatures(
+				secondProduct,
+				identity as translateType
+			);
+
+			const cartChanges_2 = {
+				products: [ secondProduct ],
+				cart_generated_at_timestamp: 1737356249,
+			};
+
+			rerender(
+				<QueryClientProvider client={ queryClient }>
+					<MyCheckoutSummary cartChanges={ cartChanges_2 } />
+				</QueryClientProvider>
+			);
+
+			await waitFor( () => {
+				firstProductFeatures.map( ( feature ) => {
+					expect( screen.queryByText( feature ) ).not.toBeInTheDocument();
+				} );
+				secondProductFeatures.map( ( feature ) => {
+					expect( screen.queryByText( feature ) ).toBeInTheDocument();
+				} );
+			} );
+		} );
+	} );
 } );