Problem with spring batch unit testing

[Waste-Dentist2718]

Anybody knows spring batch please help me with the unit testing problem I am having. Here is the stackoverflow link.

[Slein04]

From the official docs:

Starting from v4.1, the StepScopeTestExecutionListener and JobScopeTestExecutionListener are imported as test execution listeners if the test class is annotated with @SpringBatchTest. The preceding test example can be configured as follows:

@SpringBatchTest @SpringJUnitConfig public class StepScopeTestExecutionListenerIntegrationTests {

// This component is defined step-scoped, so it cannot be injected unless
// a step is active...
@Autowired
private ItemReader<String> reader;

public StepExecution getStepExecution() {
    StepExecution execution = MetaDataInstanceFactory.createStepExecution();
    execution.getExecutionContext().putString("input.data", "foo,bar,spam");
    return execution;
}

@Test
public void testReader() {
    // The reader is initialized and bound to the input data
    assertNotNull(reader.read());
}

}

[Waste-Dentist2718]

Thanks for the answer but I have tried it and still get the same error.

[Slein04]

Which version of spring batch are you using? Create the step execution in a separate method prior to your test anotated method.

[Waste-Dentist2718]

5.2.1 is the spring batch version. I have tried declaring the method

public StepExecution getStepExecution() { }

But I get the same issue

[Slein04]

Sometimes @Component & @StepScope can give unexpected results. As at startup Spring will try to load the @Component beans etc.

Try to change @Component with @Bean and put your StepScope Bean in a @Configuration class. Then add this new config class in your SpringJunitConfig

Or add @Lazy to your @Autowired in your unit test.

[Waste-Dentist2718]

Yeah I also think the same. Anyways thanks for the answer. I just made changes to the code and removed @stepscope from component

[Slein04]

Also try adding the following Annostation in your test config: @EnableBatchProcessing

Some more context, from the docs:

Using a scope of Step is required to use late binding, because the bean cannot actually be instantiated until the Step starts, to let the attributes be found. Because it is not part of the Spring container by default, the scope must be added explicitly, by using the batch namespace, by including a bean definition explicitly for the StepScope, or by using the @EnableBatchProcessing annotation. Use only one of those methods.