Eclipse安装TestNG

• 在线安装
  Help -> Install New Software -> Add
  输入Name：testNG，Location：http://beust.com/eclipse

  导入需要的jar包：

	jcommander-1.72.jar 	
	testng-7.0.0.jar

• 测试是否安装成功：参考https://www.cnblogs.com/baixiaozheng/p/4989856.html
  新建一个Java类：

package com.automation.testsuite;

public class Sum {
	private int num1;
	private int num2;
	private int mysum;
	
	public int add(int num1,int num2){
		mysum = num1+num2;
		return mysum;
	}
}

新建一个TestNG Class

package com.automation.testsuite;

import static org.testng.Assert.assertEquals;

import org.testng.annotations.Test;

public class NewTest {
	
	private Sum sum = new Sum();
	  @Test
	  public void f() {
		  
		  int mysum = sum.add(1, 2);
			assertEquals(3,mysum,"Right");
			
	  }
}

运行NewTest类，选择使用Run As -> TestNG Test
发现报错：

An internal error occurred during: "Launching XXX"，
后面类似org.testng.eclipse.maven.MavenTestNGLaunchConfigurationProvider.
getVMArgsFromPom(MavenTestNGLaunchConfigurationProvider.java:74)

解决方法：
参考：
https://www.e-learn.cn/index.php/content/wangluowenzhang/72487
https://stackoverflow.com/questions/34050615/testng-an-internal-error-occurred-during-launching

卸载Maven：
Help -> Install new software… -> What is already installed? ->Select the TestNG M2E software and click uninstall

重新运行，发现报错：
[RemoteTestNG] detected TestNG version 7.0.0 java.lang.NoSuchMethodError: org.testng.remote.AbstractRemoteTestNG.addListener(Lorg/testng/ISuiteListener;)V at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:111) at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251) at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)

原因：版本不一致，Eclipse在线安装的testng和导入的jar包版本不一致

解决：
在线安装了就无需再另外导入jar包，所以去掉以上两个jar包即可。
去掉后报错的话，鼠标放在报错代码上点击add Testng library

运行成功