java私有方法单元测试
使用junit5，类的代码为
package com.sysush.tool;
public class Tool1 {
private void helloworld() {
System.out.println("hello world");
}
private int add(Integer a, Integer b) {
return a + b;
}
}
测试代码为：
import org.junit.jupiter.api.Test;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
public class Tool1Test {
private Tool1 tool = new Tool1();
@Test
public void noPara() throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {
Method privateMethod = tool.getClass().getDeclaredMethod("helloworld");
privateMethod.setAccessible(true);
privateMethod.invoke(tool);
}
@Test
public void para() throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {
Method privateMethod = tool.getClass().getDeclaredMethod("add", Integer.class, Integer.class);
privateMethod.setAccessible(true);
Object a = privateMethod.invoke(tool, 1, 2);
System.out.println(a);
}
}