Selenium provides an API for various events that occur when our scripts are executed like click, switch to a window, navigation, onException, etc. and these can be registered using WebDriverEventListener interface or EventFiringWebDriver class. These events play a pivotal role in analyzing results and in debugging issues (if any).
EventFiringWebDriver class takes care of all events that are occurred while the execution of your script. EventFiringWebDriver class can be bind to more than one listener but all event listeners should be registered with the EventFiringWebDriver class so that it can be notified.
EventFiringWebDriver eventFiring =new EventFiringWebDriver(driver);
FirstEventCapture firstListener =new FirstEventCapture(); //FirstEventCapture implements WebDriverEventListener
SecondEventCapture secondListener =new SecondEventCapture(); //SecondEventCapture implements WebDriverEventListener
eventFiring.register(firstListener);
eventFiring.register(secondListener);
Check this link to know details about all the methods in WebDriverEventListener Interface: https://selenium.dev/selenium/docs/api/java/org/openqa/selenium/support/events/WebDriverEventListener.html
Note* WebDriver listener (WebDriverEventListener) is doing a similar job like TestNG listeners i.e. of logging/reporting things but both work on different events. WebDriverEventListener works on different automation events like click, navigation, etc. whereas TestNG works on different test's related events like onStart(), beforeStart(), etc.
selenium testautomation automationtesting eventListener
At times, we see some weird behavior in your testNG execution and feel that the information displayed is insufficient and would like to see more details. At other times, the output on the console is too verbose and we may want to only see the errors. This is where a verbose attribute can help you- it is used to define the amount of logging to be performed on the console. The verbosity level is 0 to 10, where 10 is most detailed. Once you set it to 10, you'll see that console output will contain information regarding the tests, methods, and listeners, etc. <suite name="Suite" thread-count="5" verbose="10"> Note* You can specify -1 and this will put TestNG in debug mode. The default level is 0. Alternatively, you can set the verbose level through attribute in "maven-surefire-plugin" in pom.xml, as shown in the image. #testNG #automationTesting #verbose # #testAutomation
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