Question

我在mapper下方，我使用服务通过代码获取实体

对于单元测试，我嘲笑了这些服务，但是它显示错误java.lang.NullPointerException

@Mapper(uses = { LevelMaturityService.class, SatisfactionLevelService.class })
public interface EvaluationMapper extends EntityMapper<EvaluationDTO, Evaluation> {
@Mapping(source = "levelMaturity.code", target = "levelMaturity", qualifiedByName = { "levelMaturityService", "getLevelMaturityByCode" } )
@Mapping(source = "satisfactionLevel.code", target = "satisfactionLevel", qualifiedByName = { "satisfactionLevelService", "getSatisfactionLevelByCode" })
Evaluation toEntity(EvaluationDTO evaluationDTO);
}

public class EvaluationMapperTest {

private EvaluationMapper evaluationMapper = InstanceMapperConstant.EVALUATION_INSTANCE;

@Mock
private LevelMaturityService levelMaturityService;

@Mock
private SatisfactionLevelService satisfactionLevelService;

private static EvaluationInit evaluationInit;

@BeforeClass
public static void setUp() throws Exception {
    evaluationInit = new EvaluationInit();
}

@Test
public void givenEvaluationDTO_thenReturnEvaluation() {
    EvaluationDTO evaluationDTO = evaluationInit.buildEvaluationDTOWithId();
    when(levelMaturityService.getOne(evaluationDTO.getLevelMaturity().getCode())).thenReturn(Mockito.any(LevelMaturity.class)); // error
    when(satisfactionLevelService.getOne(evaluationDTO.getSatisfactionLevel().getCode())).thenReturn(Mockito.any(SatisfactionLevel.class));
    Evaluation evaluation = evaluationMapper.toEntity(evaluationDTO);
    assertEquals(evaluationDTO.getBusinessValueGroup(), evaluation.getBusinessValueGroup());
}

}

java.lang.NullPointerException在 com.softilys.soyouz.service.mapper.EvaluationMapperTest.givenEvaluationDTO_thenReturnEvaluation（EvaluationMapperTest.java:46）在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）处 sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:62）在 sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）在java.lang.reflect.Method.invoke（Method.java:498）在 org.junit.runners.model.FrameworkMethod $ 1.runReflectiveCall（FrameworkMethod.java:50）在 org.junit.internal.runners.model.ReflectiveCallable.run（ReflectiveCallable.java:12）在 org.junit.runners.model.FrameworkMethod.invokeExplosively（FrameworkMethod.java:47）在 org.junit.internal.runners.statements.InvokeMethod.evaluate（InvokeMethod.java:17）在org.junit.runners.ParentRunner.runLeaf（ParentRunner.java:325）处 org.junit.runners.BlockJUnit4ClassRunner.runChild（BlockJUnit4ClassRunner.java:78）在 org.junit.runners.BlockJUnit4ClassRunner.runChild（BlockJUnit4ClassRunner.java:57）在org.junit.runners.ParentRunner处$ 3.run（ParentRunner.java:290）在 org.junit.runners.ParentRunner $ 1.schedule（ParentRunner.java:71）在 org.junit.runners.ParentRunner.runChildren（ParentRunner.java:288）在 org.junit.runners.ParentRunner.access $ 000（ParentRunner.java:58）在 org.junit.runners.ParentRunner $ 2.evaluate（ParentRunner.java:268）在 org.junit.internal.runners.statements.RunBefores.evaluate（RunBefores.java:26）在org.junit.runners.ParentRunner.run（ParentRunner.java:363）处 org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run（JUnit4TestReference.java:89）在 org.eclipse.jdt.internal.junit.runner.TestExecution.run（TestExecution.java:41）在 org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests（RemoteTestRunner.java:541）在 org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests（RemoteTestRunner.java:763）在 org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run（RemoteTestRunner.java:463）在 org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main（RemoteTestRunner.java:209）

Answer 1

evaluationDTO.getLevelMaturity().getCode()

由于您从未分配任何值，因此会抛出NullPointerException。

在evaluationDTO中设置值。它只是初始化为空。

JUnit-模拟服务嵌套映射器

1 个答案: