Trying to generate extent report by putting the listener at suite level but the report only displays the last test case ran in the report

[DipikaMishra13]

Trying to generate extent report by putting the listener at suite level but the report only displays the last test case ran in the report

[DipikaMishra13]

package CustomTestListener;
import com.aventstack.extentreports.ExtentReports;
import com.aventstack.extentreports.ExtentTest;
import com.aventstack.extentreports.reporter.ExtentHtmlReporter;
import com.aventstack.extentreports.reporter.configuration.ChartLocation;
import com.aventstack.extentreports.reporter.configuration.Theme;
import org.testng.ITestContext;
import org.testng.ITestListener;
import org.testng.ITestResult;
import org.testng.annotations.AfterSuite;
import org.testng.annotations.BeforeSuite;

import java.io.PrintWriter;
import java.io.StringWriter;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;

/**

• Created by ID850378 on 17/07/2017.
  */
  public class CustomTestListener implements ITestListener {

  private static String dateTimeFormat = "yyyy-MM-dd_kk-mm";
  private static String executionReportsHome = "target";
  private static String FILE_NAME = "Report_%s.html";
  private static ExtentReports extent;
  private static ExtentHtmlReporter htmlReporter;
  private static ExtentTest currentTest;

  private String getDateString(){
  Date now = Calendar.getInstance().getTime();
  SimpleDateFormat format = new SimpleDateFormat(dateTimeFormat);
  return format.format(now);
  }

  public void onStart(ITestContext iTestContext) {

   //	making sure paths are in place
   FILE_NAME = String.format(FILE_NAME, "Dipika");
  
   //	configuring the extent reporter
  
   htmlReporter = new ExtentHtmlReporter(executionReportsHome+"/"+FILE_NAME);
  
  
   htmlReporter.config().setDocumentTitle("ExtentReports - Created by TestNG Listener");
   htmlReporter.config().setReportName("ExtentReports - Created by TestNG Listener");
   htmlReporter.config().setTestViewChartLocation(ChartLocation.TOP);
   htmlReporter.config().setChartVisibilityOnOpen(true);
   htmlReporter.config().setTheme(Theme.STANDARD);
  
  
   extent = new ExtentReports();
   extent.attachReporter(htmlReporter);
   extent.setReportUsesManualConfiguration(true);
  

  }

  private void assignCategories(ITestResult iTestResult){

   ArrayList<String> labels = new ArrayList<String>();
  String className = iTestResult.getTestClass().getRealClass().getName();
   //String methodName = iTestResult.getMethod().getMethodName();
   String[] groupName = iTestResult.getMethod().getGroups();
  
   //labels.addAll(Arrays.asList(className.split("\\.")));
   labels.addAll(Arrays.asList(className));
   labels.addAll(Arrays.asList(groupName));
  

  //labels.addAll(Arrays.asList(methodName.split("\.")));

   for (String label : labels) {
       currentTest.assignCategory(label.toLowerCase());
       //currentTest.assignAuthor(label.toLowerCase());
  
   }
  

  }

@BeforeSuite
public void onTestStart(ITestResult iTestResult) {

    try {
        String testName = iTestResult.getMethod().getMethodName();
        String[] test = iTestResult.getMethod().getGroups();
        currentTest = extent.createTest(testName);

        assignCategories(iTestResult);
    } catch (Exception e) {
        e.printStackTrace();
    }

}

public void onTestSuccess(ITestResult iTestResult) {
    currentTest.pass("<strong>TEST PASSED!!!!!!!</strong>");
    currentTest.getClass().getPackage();
    currentTest.getModel().getDescription();
}

public void onTestFailure(ITestResult iTestResult) {

    try {
        String testName = iTestResult.getMethod().getMethodName();
        String screenshotName = testName+".jpg";
        if(null != iTestResult.getThrowable()){
            currentTest.fail( iTestResult.getThrowable().getMessage() );
            //currentTest.fail(iTestResult.getThrowable().getStackTrace().toString());
            currentTest.fail( iTestResult.toString());
            Throwable exception = iTestResult.getThrowable();
            if(exception!=null)
            {
                StringWriter sw = new StringWriter();
                PrintWriter pw = new PrintWriter(sw);
                exception.printStackTrace(pw);
                currentTest.fail(sw.toString());
            }

        }else {
            currentTest.fail("Could not get cause!!!");
        }
        currentTest.addScreenCaptureFromPath(screenshotName);

    } catch (Exception e) {
        e.printStackTrace();
    }

}

public void onTestSkipped(ITestResult iTestResult) {
    try {
        if(null == iTestResult.getThrowable()){
            currentTest.skip("<strong>TEST SKIPPED!!!!!!!</strong>");
        }else {
            currentTest.skip(iTestResult.getThrowable().getMessage());
        }

    } catch (Exception e) {
        e.printStackTrace();
    }
}

public void onTestFailedButWithinSuccessPercentage(ITestResult iTestResult) {
    try {
        onTestFailure(iTestResult);

    } catch (Exception e) {
        e.printStackTrace();
    }
}

@AfterSuite
public void onFinish(ITestContext iTestContext) {
try {
htmlReporter.flush();
htmlReporter.stop();
extent.flush();
} catch (Exception e) {
e.printStackTrace();
}
}
}

[DipikaMishra13]

[foursyth]

Did you see the examples section already for ITestListener?

http://extentreports.com/docs/versions/3/java/

It should work as-is and you can customize it to output the info you have in the code