Question

在范围报告中测试用例失败时获取java.lang.ClassCastException。我有一个TestListener类，它在一个程序包中实现onpass，onfailure，onskipp方法声明，在一个程序包中具有Test类，并且在第三个程序包的基类下声明Webdriver，这样做是为了提高可读性。

现在，每当一个测试用例失败时，控制就会转到失败，我们已经实现了屏幕截图功能，这就是我的代码失败的地方。

onfailure方法-

 public void onTestFailure(ITestResult iTestResult) {
    System.out.println("I am in onTestFailure method " +  getTestMethodName(iTestResult) + " failed");

    //Get driver from BaseTest and assign to local webdriver variable.
    Object testClass = iTestResult.getInstance();

    WebDriver webDriver = ((BaseClass) testClass).getDriver();

    //Take base64Screenshot screenshot.
    String base64Screenshot = "data:image/png;base64,"+((TakesScreenshot)webDriver).
          getScreenshotAs(OutputType.BASE64);


    //Extentreports log and screenshot operations for failed tests.
    ExtentTestManager.getTest().log(LogStatus.FAIL,"Test case failed",
           ExtentTestManager.getTest().addBase64ScreenShot(base64Screenshot));
    //ExtentTestManager.getTest().log(LogStatus.FAIL, "Test case failed as:"+iTestResult.getThrowable());
}

基类：

 public WebDriver getDriver()
 {
if (driver == null)
{
 System.setProperty("webdriver path here"); 
  driver= new ChromeDriver();
  return driver;
}
else
{
  return driver;
}
}

错误日志-

java.lang.ClassCastException: VWAutomationTest.TestVWLoginPage cannot be cast to Utility.BaseClass
at Listeners.TestListener.onTestFailure(TestListener.java:77)
at org.testng.internal.TestListenerHelper.runTestListeners(TestListenerHelper.java:67)
at org.testng.internal.Invoker.runTestListeners(Invoker.java:1388)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1041)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)
at org.testng.TestRunner.privateRun(TestRunner.java:648)
at org.testng.TestRunner.run(TestRunner.java:505)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:455)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:450)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:415)
at org.testng.SuiteRunner.run(SuiteRunner.java:364)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:84)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1208)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1137)
at org.testng.TestNG.runSuites(TestNG.java:1049)
at org.testng.TestNG.run(TestNG.java:1017)
at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:114)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)

Answer 1

我想出了答案，

我正在做的错误是我没有在我的Test类和Testlistener以及VWAutomationTest.TestVWLoginpage中扩展Baseclass，我在调用baseclass的对象，因此出现错误。为了使其工作，我只是扩展了基类，即

public class TestVWLoginPage extends Utility.BaseClass

其他所有内容都保持不变。

TestNG：在范围报告中测试用例失败时获取java.lang.ClassCastException

1 个答案: