最近要在框架中添加case失败时,要自动截图,主要又两种方式,思想都是在抛异常的时候,捕获到异常,并作页面截图处理。今天坐下总结。
一、第一种方式,重写onException方法
只针对webdriver的异常截图,该方法由于只针对webdriver抛的异常时才能截图,有一定的限制
a.继承AbstractWebDriverEventListener类,重写onException方法,
public void onException(java.lang.Throwable throwable,
WebDriver driver){
Throwable cause = throwable.getCause(); /* String cause = throwable.getClass().getName(); ScreenshotException ec = new ScreenshotException(cause); */
System.out.println(throwable.getClass().getName());
System.out.println("onException=" + cause);
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd-hh-mm-ss");
String dateString = formatter.format(currentTime);
File scrFile = ((TakesScreenshot) driver).getScreenshotAs(OutputType.FILE);
try {
File screenshot = new File("D:/ddd/"
+ dateString + ".png");
FileUtils.copyFile(scrFile,screenshot);
} catch (IOException e) {
e.printStackTrace();
}
}
b.测试类,要用EventFiringWebDriver ,并注册MyListen
public static void main(String args[]) {
String key = "webdriver.chrome.driver";
String value = "D:/BaiduYunDownload/selenium/chromedriver.exe";
System.setProperty(key, value);
WebDriver dr = new ChromeDriver();
EventFiringWebDriver event = new EventFiringWebDriver(dr);
MyListen ml = new MyListen();
event.register(ml);
dr = event;
dr.get("http://www.baidu.com");
dr.findElement(By.id("kw1")).sendKeys("test");
//System.out.println(5/0);
Assert.assertEquals("haha", event.findElement(By.id("su")).getAttribute("value"));
event.quit();
}
二、第二种方式:使用testNG的TestListenerAdapter
a.先建一个类继承TestListenerAdapter,并重写onTestFailure方法
package com.screenshot.exception;
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import org.apache.commons.io.FileUtils;
import org.apache.velocity.runtime.log.LogManager;
import org.openqa.selenium.OutputType;
import org.openqa.selenium.TakesScreenshot;
import org.openqa.selenium.WebDriver;
import org.testng.ITestResult;
import org.testng.TestListenerAdapter;
import com.screenshot.singleton.TestBase;
/**
* @author QiaoJiaofei
* @version 创建时间:2015年8月24日 下午6:33:44
* 类说明
*/
public class UseTestNg extends TestListenerAdapter{
@Override
public synchronized void onTestFailure(ITestResult result) {
Object currentClass = result.getInstance();
WebDriver webDriver = ((TestUsNg) currentClass).getDriver();
if (webDriver != null)
{
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd-hh-mm-ss");
String dateString = formatter.format(currentTime);
File scrFile = ((TakesScreenshot) webDriver).getScreenshotAs(OutputType.FILE);
try {
File screenshot = new File("D:/ddd/"
+ dateString + ".png");
FileUtils.copyFile(scrFile,screenshot);
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
b.创建测试类,注意需要在测试类中写getDriver()方法
package com.screenshot.exception;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.testng.annotations.Test;
/**
* @author QiaoJiaofei
* @version 创建时间:2015年8月24日 下午6:43:44
* 类说明
*/
public class TestUsNg {
private WebDriver dr;
public WebDriver getDriver() {
return dr;
}
@Test
public void f() {
String key = "webdriver.chrome.driver";
String value = "D:/BaiduYunDownload/selenium/chromedriver.exe";
System.setProperty(key, value);
dr = new ChromeDriver();
System.out.println(5/0);
}
}
C.在testng的xml文件中添加监听
<listeners>
<listener class-name="com.screenshot.exception.UseTestNg" />
</listeners>
D.测试类继承该类,每个子类前面要加:@Listeners({com.gm.base.MyListener.class})
三、如何将生成的图片连接到reportNG中,将下面的代码放入上面相应重写的方法中,图片路径与上述代码中生成的图片结合一起。
String imgName = "";//图片路径
Reporter.log("<a href=./img/" + imgName + " target=_blank>Failed Screen Shot</a>", true);
题外:使用Robot主动截图,这种可以在自己想截图的时候调用该方法即可截当前界面
package com.screenshot.book;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;
import org.testng.annotations.Test;
/**
* @author QiaoJiaofei
* @version 创建时间:2015年8月26日 下午7:40:34
* 类说明
*/
public class TestRobot {
@Test
public void takeScreenShotMethod(){
try{
Thread.sleep(3000);
BufferedImage image = new Robot().createScreenCapture(new Rectangle(Toolkit.getDefaultToolkit().getScreenSize()));
ImageIO.write(image, "jpg", new File("D:/ddd/screenshot.jpg"));
}
catch(Exception e){
e.printStackTrace();
}
}
}
备注:
使用junit自动截图,可以使用Rule,由于我用的是testNG,所以没有调试junit的方法。详细参考:http://stackoverflow.com/questions/20995722/when-does-onexception-get-triggered-in-webdrivereventlistener
@Rule
public TestRule testWatcher = new TestWatcher() {
@Override
public void succeeded(Description test){
for (LogEntry log : driver.manage().logs().get(LogType.DRIVER).getAll()) {
System.out.println("Level:" + log.getLevel().getName());
System.out.println("Message:" + log.getMessage());
System.out.println("Time:" + log.getTimestamp());
System.out.println("-----------------------------------------------");
}
System.out.println();
@Override
public void failed(Throwable t, Description test) {
String testName = test.getClassName();
String subTestName = test.getMethodName();
String screenShotName = String.format("%s\\%s", testName, screenShotName);
if (driver instanceof TakesScreenshot) {
File tempFile = ((TakesScreenshot) driver).getScreenshotAs(OutputType.FILE);
try {
System.out.println(">>>>>>>>>>LOGS: " + yourDirForImages + "\\" + screenShotName + ".png");
FileUtils.copyFile(tempFile, new File(String.format("%s.png", screenShotName)));
} catch (IOException e) {
e.printStackTrace();
}
}
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