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Add AbstractTaskletStepBuilder testcode
This commit includes tests for the copy constructor of AbstractTaskletStepBuilder and for the faultTolerant method, specifically after taskExecutor has been set.
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package org.springframework.batch.test;
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/*
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* Copyright 2020-2022 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import static org.junit.Assert.assertEquals;
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import static org.mockito.Mockito.mock;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.Field;
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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 org.springframework.batch.core.repository.JobRepository;
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import org.springframework.batch.core.step.builder.AbstractTaskletStepBuilder;
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import org.springframework.batch.core.step.builder.SimpleStepBuilder;
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import org.springframework.batch.core.step.builder.StepBuilderHelper;
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import org.springframework.batch.item.ItemProcessor;
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import org.springframework.batch.item.ItemReader;
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import org.springframework.batch.item.ItemWriter;
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import org.springframework.batch.test.context.SpringBatchTest;
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import org.springframework.core.task.SimpleAsyncTaskExecutor;
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import org.springframework.core.task.TaskExecutor;
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import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
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/**
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* Test cases for verifying the {@link AbstractTaskletStepBuilder} and faultTolerant() functionality.
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*
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* @author Ilpyo Yang
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*/
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@SpringBatchTest
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@SpringJUnitConfig
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public class AbstractTaskletStepBuilderTests {
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private final JobRepository jobRepository = mock(JobRepository.class);
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private final int chunkSize = 10;
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private final ItemReader itemReader = mock(ItemReader.class);
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private final ItemProcessor itemProcessor = mock(ItemProcessor.class);
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private final ItemWriter itemWriter = mock(ItemWriter.class);
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private final SimpleAsyncTaskExecutor taskExecutor = new SimpleAsyncTaskExecutor();
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SimpleStepBuilder simpleStepBuilder;
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private <T> T accessPrivateField(Object o, String fieldName) throws ReflectiveOperationException {
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Field field = o.getClass().getDeclaredField(fieldName);
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field.setAccessible(true);
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return (T) field.get(o);
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}
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private <T> T accessSuperClassPrivateField(Object o, String fieldName) throws ReflectiveOperationException {
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Field field = o.getClass().getSuperclass().getDeclaredField(fieldName);
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field.setAccessible(true);
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return (T) field.get(o);
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}
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@BeforeEach
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void set(){
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StepBuilderHelper stepBuilderHelper = new StepBuilderHelper("test", jobRepository) {
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@Override
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protected StepBuilderHelper self() {
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return null;
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}
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};
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simpleStepBuilder = new SimpleStepBuilder(stepBuilderHelper);
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simpleStepBuilder.chunk(chunkSize);
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simpleStepBuilder.reader(itemReader);
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simpleStepBuilder.processor(itemProcessor);
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simpleStepBuilder.writer(itemWriter);
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}
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@Test
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void copyConstractorTest() throws ReflectiveOperationException {
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Constructor<SimpleStepBuilder> constructor = SimpleStepBuilder.class.getDeclaredConstructor(SimpleStepBuilder.class);
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constructor.setAccessible(true);
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SimpleStepBuilder copySimpleStepBuilder = constructor.newInstance(simpleStepBuilder);
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int copyChunkSize = accessPrivateField(copySimpleStepBuilder, "chunkSize");
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ItemReader copyItemReader = accessPrivateField(copySimpleStepBuilder, "reader");
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ItemProcessor copyItemProcessor = accessPrivateField(copySimpleStepBuilder, "processor");
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ItemWriter copyItemWriter = accessPrivateField(copySimpleStepBuilder, "writer");
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assertEquals(chunkSize, copyChunkSize);
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assertEquals(itemReader, copyItemReader);
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assertEquals(itemProcessor, copyItemProcessor);
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assertEquals(itemWriter, copyItemWriter);
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}
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@Test
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void faultTolerantMethodTest() throws ReflectiveOperationException {
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simpleStepBuilder.taskExecutor(taskExecutor); // The task executor is set before faultTolerant()
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simpleStepBuilder.faultTolerant();
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int afterChunkSize = accessPrivateField(simpleStepBuilder, "chunkSize");
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ItemReader afterItemReader = accessPrivateField(simpleStepBuilder, "reader");
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ItemProcessor afterItemProcessor = accessPrivateField(simpleStepBuilder, "processor");
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ItemWriter afterItemWriter = accessPrivateField(simpleStepBuilder, "writer");
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TaskExecutor afterTaskExecutor = accessSuperClassPrivateField(simpleStepBuilder, "taskExecutor");
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assertEquals(chunkSize, afterChunkSize);
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assertEquals(itemReader, afterItemReader);
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assertEquals(itemProcessor, afterItemProcessor);
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assertEquals(itemWriter, afterItemWriter);
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assertEquals(taskExecutor, afterTaskExecutor);
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}
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}

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