1.截圖類:java
public class ScreenShot { public WebDriver driver; public ScreenShot(WebDriver driver) { this.driver = driver; } private void takeScreenshot(String screenPath) { try { File scrFile = ((TakesScreenshot) driver) .getScreenshotAs(OutputType.FILE); FileUtils.copyFile(scrFile, new File(screenPath)); } catch (IOException e) { System.out.println("Screen shot error: " + screenPath); } } public void takeScreenshot() { String screenName = String.valueOf(new Date().getTime()) + ".jpg"; File dir = new File("test-output/snapshot"); if (!dir.exists()) dir.mkdirs(); String screenPath = dir.getAbsolutePath() + "/" + screenName; this.takeScreenshot(screenPath); } }
2.咱們能夠用testng的一個監聽器來監聽錯誤時截圖:多線程
public class DotTestListener extends TestListenerAdapter { @Override public void onTestFailure(ITestResult tr) { } }
3.也就是說咱們只須要在onTestFailure方法裏面調用ScreenShot類裏面的takeScreenshot方法便可,可是咱們注意到ScreenShot類裏須要傳一個driver進去。ide
如今問題來了,對於driver的處理,各式各樣,有的用到了單子模式,即把driver當成一個全局的靜態變量,在哪均可以用,因此ScreenShot類裏能夠訪問獲得driver對象,但這樣也就有一個問題,即全局只有一個driver,若是想多線程運行時,啓多個driver實例時,用這種方式就作不到了,因而出現了另一種處理方式,即每個類或者每個測試方法是,啓一個新的driver對象,這樣,driver對象就不是全局的了,就是類對象屬性了,好比:測試
public class TestBase { public WebDriver driver; public WebDriver getDriver() { return driver; } @BeforeClass public void setUp(){ driver = new FirefoxDriver(); driver.manage().window().maximize(); driver.navigate().to("http://www.baidu.com"); } @AfterClass public void tearDown(){ driver.close(); driver.quit(); } }
public class Test10 extends TestBase{ @Test public void testInput(){ System.out.println(5/0); } }
那如何把這個類對象的driver屬性給傳到onTestFailure方法裏去?ui
public class DotTestListener extends TestListenerAdapter { @Override public void onTestFailure(ITestResult tr) { try { TestBase tb = (TestBase) tr.getInstance(); WebDriver driver = tb.getDriver(); System.out.println(driver.getTitle()); } catch (SecurityException e) { e.printStackTrace(); } catch (IllegalArgumentException e) { e.printStackTrace(); } } }
最後再加上監聽便可:this
@Listeners({ DotTestListener.class }) public class Test10 extends TestBase{ @Test public void testInput(){ System.out.println(5/0); } }