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How to use beforeConfiguration method of org.testng.Interface IConfigurationListener class

Best Testng code snippet using org.testng.Interface IConfigurationListener.beforeConfiguration

Source:CarinaListenerChain.java

...26import com.nordstrom.automation.testng.ListenerChain;27public class CarinaListenerChain extends ListenerChain {28    private static final Logger LOGGER = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());29    // The IConfigurationListener interface has two methods with the same meaning:30    // 1. void beforeConfiguration(ITestResult tr)31    // 2. void beforeConfiguration(ITestResult tr, ITestNGMethod tm)32    //33    // The only difference is that the version with two arguments also passes the actual test method34    // for which a configuration method is going to be invoked, but the first version don't.35    //36    // The Zebrunner agent expects the second version of the method to be invoked.37    // This is basically necessary to correlate a test method with corresponding to it @BeforeMethod and @AfterMethod methods.38    //39    // The problem is that Nordstrom's ListenerChain class doesn't decorate this method.40    // As a result, the Zebrunner agent misses invocations of @BeforeMethod and @AfterMethod methods.41    @Override42    public void beforeConfiguration(ITestResult tr, ITestNGMethod tm) {43        try {44            Field configListenersField = this.getClass().getSuperclass().getDeclaredField("configListeners");45            configListenersField.setAccessible(true);46            List<IConfigurationListener> listeners = (List<IConfigurationListener>) configListenersField.get(this);47            invokeListeners(tr, tm, listeners);48        } catch (NoSuchFieldException | IllegalAccessException e) {49            LOGGER.error("Could not invoke configuration listeners.", e);50        }51    }52    private void invokeListeners(ITestResult tr, ITestNGMethod tm, List<IConfigurationListener> listeners) {53        synchronized (listeners) {54            for (IConfigurationListener configListener : Lists.reverse(listeners)) {55                configListener.beforeConfiguration(tr, tm);56            }57        }58    }59}

Source:TestNGConfigurationListener.java

...41     * Invoked before a configuration method is invoked. 42     * 43     * Note: This method is only invoked for TestNG 6.2 or higher.44     */45    void beforeConfiguration(ITestResult tr);46}...

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