TestNG 中的 IInvokedMethodListener 和 IMethodInterceptor 有什么区别?
Whats the differences between IInvokedMethodListener and IMethodInterceptor in TestNG?
java中拦截器和监听器的基本区别是什么?如果我同时添加两者,哪个会先被调用?
1) IMethodInterceptor 允许用户修改要执行的方法(或测试)列表。
2) IInvokedMethodListener 允许用户执行某些操作before/after 一个方法已经被执行。清理或设置之类的东西。
3) 首先调用 IMethodInterceptor,这样如果用户希望修改要执行的方法列表,那么用户可以更改它并将其传递给 TestRunner。
请看下面的示例代码:
package practise;
import org.testng.IInvokedMethod;
import org.testng.IInvokedMethodListener2;
import org.testng.ITestContext;
import org.testng.ITestResult;
public class InvokedMethodListener implements IInvokedMethodListener2
{
@Override
public void afterInvocation(IInvokedMethod arg0, ITestResult arg1)
{
System.out.println(Thread.currentThread().getStackTrace()[0].getMethodName());
}
@Override
public void beforeInvocation(IInvokedMethod arg0, ITestResult arg1)
{
System.out.println(Thread.currentThread().getStackTrace()[0].getMethodName());
}
@Override
public void afterInvocation(IInvokedMethod arg0, ITestResult arg1, ITestContext arg2)
{
System.out.println(Thread.currentThread().getStackTrace()[1].getMethodName());
}
@Override
public void beforeInvocation(IInvokedMethod arg0, ITestResult arg1, ITestContext arg2)
{
System.out.println(Thread.currentThread().getStackTrace()[1].getMethodName());
}
}
package practise;
import java.util.List;
import org.testng.IMethodInstance;
import org.testng.IMethodInterceptor;
import org.testng.ITestContext;
public class MethodInterceptor implements IMethodInterceptor
{
@Override
public List<IMethodInstance> intercept(List<IMethodInstance> arg0, ITestContext arg1)
{
System.out.println(Thread.currentThread().getStackTrace()[1].getMethodName());
return arg0;
}
}
package practise;
import org.testng.annotations.Listeners;
@Listeners(value={MethodInterceptor.class,InvokedMethodListener.class})
public class Test
{
@org.testng.annotations.Test
public void first()
{
System.out.println(Thread.currentThread().getStackTrace()[1].getMethodName());
}
@org.testng.annotations.Test
public void second()
{
System.out.println(Thread.currentThread().getStackTrace()[1].getMethodName());
}
}
java中拦截器和监听器的基本区别是什么?如果我同时添加两者,哪个会先被调用?
1) IMethodInterceptor 允许用户修改要执行的方法(或测试)列表。 2) IInvokedMethodListener 允许用户执行某些操作before/after 一个方法已经被执行。清理或设置之类的东西。 3) 首先调用 IMethodInterceptor,这样如果用户希望修改要执行的方法列表,那么用户可以更改它并将其传递给 TestRunner。 请看下面的示例代码:
package practise;
import org.testng.IInvokedMethod;
import org.testng.IInvokedMethodListener2;
import org.testng.ITestContext;
import org.testng.ITestResult;
public class InvokedMethodListener implements IInvokedMethodListener2
{
@Override
public void afterInvocation(IInvokedMethod arg0, ITestResult arg1)
{
System.out.println(Thread.currentThread().getStackTrace()[0].getMethodName());
}
@Override
public void beforeInvocation(IInvokedMethod arg0, ITestResult arg1)
{
System.out.println(Thread.currentThread().getStackTrace()[0].getMethodName());
}
@Override
public void afterInvocation(IInvokedMethod arg0, ITestResult arg1, ITestContext arg2)
{
System.out.println(Thread.currentThread().getStackTrace()[1].getMethodName());
}
@Override
public void beforeInvocation(IInvokedMethod arg0, ITestResult arg1, ITestContext arg2)
{
System.out.println(Thread.currentThread().getStackTrace()[1].getMethodName());
}
}
package practise;
import java.util.List;
import org.testng.IMethodInstance;
import org.testng.IMethodInterceptor;
import org.testng.ITestContext;
public class MethodInterceptor implements IMethodInterceptor
{
@Override
public List<IMethodInstance> intercept(List<IMethodInstance> arg0, ITestContext arg1)
{
System.out.println(Thread.currentThread().getStackTrace()[1].getMethodName());
return arg0;
}
}
package practise;
import org.testng.annotations.Listeners;
@Listeners(value={MethodInterceptor.class,InvokedMethodListener.class})
public class Test
{
@org.testng.annotations.Test
public void first()
{
System.out.println(Thread.currentThread().getStackTrace()[1].getMethodName());
}
@org.testng.annotations.Test
public void second()
{
System.out.println(Thread.currentThread().getStackTrace()[1].getMethodName());
}
}