如何将模拟注入私有方法? [英] how to inject mock into private method?

问题描述

当我访问公共方法时，模拟对象运行良好.但是当我访问私有方法时，它不起作用.

the mock object is working fine when i access public methods. but it s not working when i access private method.

我的模拟课程:

@component
public class Test{

public List<String> list(){
 // some function}
}

我的主班:

@component
public class Test2{
private string method(String method){
//here where i have to use mock object
//some function
}
}

我的测试案例:

public class JunitTestCases{

@Mock
Test test;

@Autowired
@InjectMocks
Test2 test2
public void Oncall{
Test2 test=new Test2();
Method method=Test2.class.getDeclaredMethod("method",String.class);
method.setAccessible(true);
method.invoke(test, "data");}
}

我遇到以下错误.

java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.TestCases.method(TestClass.java:198)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException
at com.MainClass.validate(MainClass.java:149)
... 21 more

有什么建议吗?我该如何运作?

any suggestion? how can i make it work?

推荐答案

在调用方法中，您使用 string.class [paramter] 而不是 Class [ ] [parameterArray].

in the invoke method your using string.class[paramter] instead of Class[][parameterArray].

无需为Test2.class创建另一个对象，您已经使用过的@injectMocks只需在invoke方法中使用变量即可..

public class JunitTestCases{

@Mock
Test test;

@InjectMocks
Test2 test2;

@Test
public void Oncall{

     MockitoAnnotations.initMocks(this);
      Class<?>[] params = new Class<?>[]{String.class};
      Method method=Test2.class.getDeclaredMethod("method",params);
       method.setAccessible(true);
       method.invoke(test2, "data");

    }
}

这篇关于如何将模拟注入私有方法?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！