Java tutorial
/** * Copyright 2011 Michael R. Lange <michael.r.lange@langmi.de>. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package de.langmi.spring.batch.examples.readers.file.flatfileitemreader; import java.util.HashMap; import java.util.Map; import static org.junit.Assert.*; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.batch.core.JobParameter; import org.springframework.batch.core.JobParameters; import org.springframework.batch.core.StepExecution; import org.springframework.batch.item.ItemStreamReader; import org.springframework.batch.test.MetaDataInstanceFactory; import org.springframework.batch.test.StepScopeTestExecutionListener; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.TestExecutionListeners; import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; import org.springframework.test.context.support.DependencyInjectionTestExecutionListener; import org.springframework.test.context.support.DirtiesContextTestExecutionListener; import org.springframework.test.context.transaction.TransactionalTestExecutionListener; /** * Tests the FlatFileItemReader from Spring Batch with Application Context with * StepScopeTestExecutionListener. * <br /> * By using StepScopeTestExecutionListener we need to provide the other "default" * listeners too. * * @author Michael R. Lange <michael.r.lange@langmi.de> * @see <a href="http://static.springsource.org/spring-batch/reference/html/testing.html#d0e7538">Spring Batch Testing</a> */ @ContextConfiguration({ "classpath*:spring/batch/job/readers/file/file-flatfileitemreader-job.xml", "classpath*:spring/batch/setup/**/*.xml" }) @TestExecutionListeners({ DependencyInjectionTestExecutionListener.class, DirtiesContextTestExecutionListener.class, StepScopeTestExecutionListener.class, TransactionalTestExecutionListener.class }) @RunWith(SpringJUnit4ClassRunner.class) public class FlatFileItemReaderContextStepScopeTest { /** Reader under test. */ @Autowired private ItemStreamReader<String> itemReaderStream; private StepExecution execution; private static final int EXPECTED_COUNT = 20; /** * Test should read succesfully. * * @throws Exception */ @Test public void testSuccessfulReading() throws Exception { // open manually itemReaderStream.open(execution.getExecutionContext()); // read try { int count = 0; while (itemReaderStream.read() != null) { count++; } assertEquals(EXPECTED_COUNT, count); } catch (Exception e) { throw e; } finally { itemReaderStream.close(); } } /** * Mandatory method for stepScope Test. * * @return * @see StepScopeTestExecutionListener */ public StepExecution getStepExection() { Map<String, JobParameter> jobParametersMap = new HashMap<String, JobParameter>(); jobParametersMap.put("time", new JobParameter(System.currentTimeMillis())); jobParametersMap.put("input.file", new JobParameter("file:src/test/resources/input/file/simple/input.txt")); execution = MetaDataInstanceFactory.createStepExecution(new JobParameters(jobParametersMap)); return execution; } }