Architecture

The entire architecture can be broken down into 3 components:

• TestNG listeners
• Messaging System
• Receiving system

TestNG listeners

If you have used TestNG or implemented Extent/Allure reporting with TestNG then you already are aware of the listener classes. In short TestNG listener always extends org.testng.ITestNGListener and TestNG provides us below listener types:

• IExecutionListener
  

• IAnnotationTransformer
  

• ISuiteListener
  

• ITestListener
  

• IConfigurationListener
  

• IMethodInterceptor
  

• IInvokedMethodListener
  

• IHookable
  

• IReporter
  

Some of the methods which we have used from ITestListener are as follows:

• onStart is invoked after the test class is instantiated and before any configuration method is called.

• onTestSuccess is invoked on success of a test.

• onTestFailure is invoked on failure of a test.

• onTestSkipped is invoked whenever a test is skipped.

• onTestFailedButWithinSuccessPercentage is invoked each time a method fails but is within the success percentage requested.

  onFinish is invoked after all the tests have run and all their Configuration methods have been called.