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java-design-patterns/microservices-client-side-ui-composition/src/test/java/com/iluwatar/clientsideuicomposition/ClientSideCompositionTest.java
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Java

/*
* This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
*
* The MIT License
* Copyright © 2014-2022 Ilkka Seppälä
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.iluwatar.clientsideuicomposition;
import org.junit.jupiter.api.Test;
import java.util.HashMap;
import java.util.Map;
import static org.junit.jupiter.api.Assertions.assertTrue;
/**
* ClientSideCompositionTest contains unit tests to validate dynamic route registration and UI composition.
*/
class ClientSideCompositionTest {
/**
* Tests dynamic registration of frontend components and dynamic composition of UI.
*/
@Test
void testClientSideUIComposition() {
// Create API Gateway and dynamically register frontend components
ApiGateway apiGateway = new ApiGateway();
apiGateway.registerRoute("/products", new ProductFrontend());
apiGateway.registerRoute("/cart", new CartFrontend());
// Create the Client-Side Integrator
ClientSideIntegrator integrator = new ClientSideIntegrator(apiGateway);
// Dynamically pass parameters for data fetching
Map<String, String> productParams = new HashMap<>();
productParams.put("category", "electronics");
// Compose UI for products and cart with dynamic params
integrator.composeUi("/products", productParams);
Map<String, String> cartParams = new HashMap<>();
cartParams.put("userId", "user123");
integrator.composeUi("/cart", cartParams);
// Validate the dynamically fetched data
String productData = apiGateway.handleRequest("/products", productParams);
String cartData = apiGateway.handleRequest("/cart", cartParams);
assertTrue(productData.contains("Product List for category 'electronics'"));
assertTrue(cartData.contains("Shopping Cart for user 'user123'"));
}
}