Spring Batch removeJobExecutions fails - spring-batch

Question

I'm trying to explore Spring batch with Spring Boot 2.3.3, and obviously the tests are very important
The batch doesnt' read / process / write anything, I've just created the skeleton.
On the tests side I've the following
#Autowired
private IntegrationTestsNeeds integrationTestsNeeds;
#Autowired
private JobLauncherTestUtils jobLauncherTestUtils;
#Autowired
private JobRepositoryTestUtils jobRepositoryTestUtils;
#AfterEach
void tearDown() throws InterruptedException {
jobRepositoryTestUtils.removeJobExecutions();
}
#Test
void testUpdateStatisticsBatch() throws Exception {
JobExecution jobExecution = jobLauncherTestUtils.launchJob();
ExitStatus exitStatus = jobExecution.getExitStatus();
Assertions.assertThat(exitStatus).isEqualTo(ExitStatus.COMPLETED);
}
The test pass but in the #AfterEach method I've the following error
org.springframework.dao.DataIntegrityViolationException: StatementCallback; SQL [delete from BATCH_STEP_EXECUTION];
Cannot delete or update a parent row: a foreign key constraint fails (`cvl`.`BATCH_STEP_EXECUTION_CONTEXT`, CONSTRAINT `STEP_EXEC_CTX_FK` FOREIGN KEY (`STEP_EXECUTION_ID`) REFERENCES `BATCH_STEP_EXECUTION` (`STEP_EXECUTION_ID`));
nested exception is java.sql.SQLIntegrityConstraintViolationException: Cannot delete or update a parent row: a foreign key constraint fails (`cvl`.`BATCH_STEP_EXECUTION_CONTEXT`, CONSTRAINT `STEP_EXEC_CTX_FK` FOREIGN KEY (`STEP_EXECUTION_ID`) REFERENCES `BATCH_STEP_EXECUTION` (`STEP_EXECUTION_ID`))
Which kind of error I'm doing?

Answer 1

I don't know why but the problem is solved using the transactionTemplate.
import org.springframework.transaction.support.TransactionTemplate
#Autowired
private TransactionTemplate transactionTemplate;
#AfterEach
void tearDown() {
transactionTemplate.execute(ts -> {
jobRepositoryTestUtils.removeJobExecutions();
return null;
});
}
Even though the jdbcTemplate is able to perform the delete statements, for some reason is not able to really delete the rows from the database.

Answer 2

I'm not able to reproduce the issue, here is an example that passes without the exception:
import javax.sql.DataSource;
import org.junit.After;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.batch.core.ExitStatus;
import org.springframework.batch.core.Job;
import org.springframework.batch.core.JobExecution;
import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing;
import org.springframework.batch.core.configuration.annotation.JobBuilderFactory;
import org.springframework.batch.core.configuration.annotation.StepBuilderFactory;
import org.springframework.batch.repeat.RepeatStatus;
import org.springframework.batch.test.JobLauncherTestUtils;
import org.springframework.batch.test.JobRepositoryTestUtils;
import org.springframework.batch.test.context.SpringBatchTest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;
#RunWith(SpringRunner.class)
#SpringBatchTest
#ContextConfiguration(classes = {MyJobTests.MyJobConfig.class})
public class MyJobTests {
#Autowired
private JobLauncherTestUtils jobLauncherTestUtils;
#Autowired
private JobRepositoryTestUtils jobRepositoryTestUtils;
#Test
public void testMyJob() throws Exception {
JobExecution jobExecution = jobLauncherTestUtils.launchJob();
ExitStatus exitStatus = jobExecution.getExitStatus();
Assert.assertEquals(ExitStatus.COMPLETED, exitStatus);
}
#After
public void tearDown() {
jobRepositoryTestUtils.removeJobExecutions();
}
#Configuration
#EnableBatchProcessing
public static class MyJobConfig {
#Bean
public Job job(JobBuilderFactory jobs, StepBuilderFactory steps) {
return jobs.get("job")
.start(steps.get("step")
.tasklet((contribution, chunkContext) -> {
System.out.println("hello world");
return RepeatStatus.FINISHED;
})
.build())
.build();
}
#Bean
public DataSource dataSource() {
return new EmbeddedDatabaseBuilder()
.setType(EmbeddedDatabaseType.H2)
.addScript("/org/springframework/batch/core/schema-drop-h2.sql")
.addScript("/org/springframework/batch/core/schema-h2.sql")
.build();
}
}
}
Spring Batch version 4.2.4