MyBatis-Plus mock单元测试用例，走到自带Service的方法报错

当前使用版本(必须填写清楚，否则不予处理)

当前使用mybatis-plus-boot-starter 版本3.0.1

该问题是怎么引起的？(最新版上已修复的会直接close掉)

使用mock进行单元测试 。使用的是Service CRUD 封装IService里面的方法报错。

重现步骤

AbcdServiceImpl继承了ServiceImpl

//简单的单元测试类 @RunWith(MockitoJUnitRunner.class) public class AbcdServiceImplTest{ @InjectMocks AbcdServiceImplServiceImpl abcdStdroleService;

@Test
public void syncStdrole() {
    when(abcdStdroleService.remove(new QueryWrapper<>())).thenReturn(true);  //这里执行自带的remove方法的时候报错。

} }

报错信息

java.lang.NullPointerException at com.baomidou.mybatisplus.extension.service.impl.ServiceImpl.remove(ServiceImpl.java:206) at com.xxxx.service.service.impl.AbcdStdroleServiceImplTest.syncStdroleAbcdServiceImplTest.java:49) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.mockito.internal.runners.DefaultInternalRunner$1.run(DefaultInternalRunner.java:79) at org.mockito.internal.runners.DefaultInternalRunner.run(DefaultInternalRunner.java:85) at org.mockito.internal.runners.StrictRunner.run(StrictRunner.java:39) at org.mockito.junit.MockitoJUnitRunner.run(MockitoJUnitRunner.java:163) at org.junit.runner.JUnitCore.run(JUnitCore.java:137) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68) at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33) at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230) at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)

Comment From: miemieYaho

自己排查

Comment From: 404951246

我也遇到了，麻烦问一下你是怎么解决的呢 @1140920375