Junit4学习笔记--方法的执行顺序

package com.lt.Demo.TestDemo;

import java.util.Arrays;
import java.util.Collection;

import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

import static org.junit.Assert.*;

@RunWith(Parameterized.class)
public class CalculatorTest {
    private int param;
    private int result;

    @Parameters
    public static Collection data() {
        return Arrays.asList(new Object[][] { { 2, 4 }, { 0, 0 }, { -3, 9 }, });
    }
    
    Calculator calculator = new Calculator();

    public CalculatorTest(int param,int result) {
        this.param = param;
        this.result = result;
        System.out.println("构造函数被调用");
    }

    @BeforeClass
    public static void testBeforeClass() {
        System.out.println("BeforeClass");
    }

    
    @Before
    public void init() throws ArithmeticException {
        System.out.println("BeforeMethod");
        calculator.clear();
    }

    @Test
    public void testPlusSelf()
    {
        
        calculator.PlusSelf(param);
        assertEquals(result, calculator.getResult());
        System.out.println("testPlusSelf：use data");
        
    }
    
    @Test
    public void testAdd() {
        int a = 10;
        int b = 100;
        calculator.add(a, b);

        int expectAnswer = 110;
        System.out.println("testAdd：not use data");
        assertEquals(expectAnswer, calculator.getResult());
    }

    
    @After
    public void testAfter() {
        System.out.println("AfterMethod");
    }

    
    @AfterClass
    public static void testAfterClass() {
        System.out.println("AfterClass");
    }

    

}

BeforeClass
构造函数被调用
BeforeMethod
testPlusSelf：use data
AfterMethod
构造函数被调用
BeforeMethod
testAdd：not use data
AfterMethod
构造函数被调用
BeforeMethod
testPlusSelf：use data
AfterMethod
构造函数被调用
BeforeMethod
testAdd：not use data
AfterMethod
构造函数被调用
BeforeMethod
AfterMethod
构造函数被调用
BeforeMethod
testAdd：not use data
AfterMethod
AfterClass