5cf2fe009b
* Use lombok, reformat, and optimize the code * Fix merge conflicts and some sonar issues Co-authored-by: va1m <va1m@email.com>
100 lines
3.5 KiB
Java
100 lines
3.5 KiB
Java
/*
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* The MIT License
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* Copyright © 2014-2021 Ilkka Seppälä
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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package com.iluwatar.business.delegate;
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import org.junit.jupiter.api.BeforeEach;
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import org.junit.jupiter.api.Test;
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import static org.mockito.Mockito.spy;
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import static org.mockito.Mockito.times;
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import static org.mockito.Mockito.verify;
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/**
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* The Business Delegate pattern adds an abstraction layer between the presentation and business
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* tiers. By using the pattern we gain loose coupling between the tiers. The Business Delegate
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* encapsulates knowledge about how to locate, connect to, and interact with the business objects
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* that make up the application.
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*
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* <p>Some of the services the Business Delegate uses are instantiated directly, and some can be
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* retrieved through service lookups. The Business Delegate itself may contain business logic too
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* potentially tying together multiple service calls, exception handling, retrying etc.
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*/
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class BusinessDelegateTest {
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private EjbService ejbService;
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private JmsService jmsService;
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private BusinessDelegate businessDelegate;
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/**
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* This method sets up the instance variables of this test class. It is executed before the
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* execution of every test.
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*/
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@BeforeEach
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public void setup() {
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ejbService = spy(new EjbService());
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jmsService = spy(new JmsService());
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BusinessLookup businessLookup = spy(new BusinessLookup());
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businessLookup.setEjbService(ejbService);
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businessLookup.setJmsService(jmsService);
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businessDelegate = spy(new BusinessDelegate());
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businessDelegate.setLookupService(businessLookup);
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}
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/**
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* In this example the client ({@link Client}) utilizes a business delegate (
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* {@link BusinessDelegate}) to execute a task. The Business Delegate then selects the appropriate
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* service and makes the service call.
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*/
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@Test
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void testBusinessDelegate() {
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// setup a client object
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var client = new Client(businessDelegate);
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// set the service type
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businessDelegate.setServiceType(ServiceType.EJB);
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// action
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client.doTask();
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// verifying that the businessDelegate was used by client during doTask() method.
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verify(businessDelegate).doTask();
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verify(ejbService).doProcessing();
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// set the service type
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businessDelegate.setServiceType(ServiceType.JMS);
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// action
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client.doTask();
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// verifying that the businessDelegate was used by client during doTask() method.
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verify(businessDelegate, times(2)).doTask();
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verify(jmsService).doProcessing();
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}
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}
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