Data provider in TestNG

 package muttu.test;  
 import org.testng.annotations.DataProvider;  
 import org.testng.annotations.Test;  
 public class DataProviderDemo {  
      @DataProvider(name = "LoginDeatls")  
      public Object[][] getUserDetails() {  
           return new Object[][] { { "uName1", "pwd1" }, { "uName2", "pwd2" } };  
      }  
      @Test(dataProvider = "LoginDeatls")  
      public void Login(String name, String password) {  
           System.out.println(name);  
           System.out.println(password);  
      }  
 }  

Run failed test cases in Java

Create a class that fails test case

 package testNG;  
 import org.testng.Assert;  
 import org.testng.annotations.Test;  
 public class TestFailClass {  
      @Test(retryAnalyzer=MyRetry.class)  
      public void failMethod(){  
           System.out.println("FAILED CLASS");  
           Assert.assertTrue(false);  
      }  
 }  

Create a class that re-runs the failed test cases

 package testNG;  
 import java.util.ArrayList;  
 import java.util.List;  
 import org.testng.TestNG;  
 public class RunFailed {  
      public static void main(String[] args) {  
           TestNG testRunner = new TestNG();  
           List<String> failedXmls = new ArrayList<String>();  
           //Enter the full path for the 'test-faailed.xml' file  
           failedXmls.add("C:/Users/Mutturaj.h/workspace/hulagabal/test-output/testng-failed.xml");  
           testRunner.setTestSuites(failedXmls);  
           testRunner.run();  
      }  
 }  

Retry failed test cases TestNG in Java

Create test cases which fails

 package testNG;  
 import org.testng.Assert;  
 import org.testng.annotations.Test;  
 public class TestFailClass {  
      @Test(retryAnalyzer=MyRetry.class)  
      public void failMethod(){  
           Assert.fail("Test failed");  
      }  
 }  

Create a retry class which implements IRetryAnalyzer interface like below which tries for 3 times

 package testNG;  
 import org.testng.IRetryAnalyzer;  
 import org.testng.ITestResult;  
 public class MyRetry implements IRetryAnalyzer {  
      private int retryCount = 0;  
      private static final int maxRetryCount = 3;  
      public boolean retry(ITestResult result) {  
           if (retryCount < maxRetryCount) {  
                retryCount++;  
                return true;  
           }  
           return false;  
      }  
 }  

Select an Item from the drop-down in selenium webdriver

 package learning;  
 import java.util.concurrent.TimeUnit;  
 import org.openqa.selenium.By;  
 import org.openqa.selenium.WebDriver;  
 import org.openqa.selenium.chrome.ChromeDriver;  
 import org.openqa.selenium.support.ui.Select;  
 public class Dropdown {  
      public static void main(String[] args) {  
           System.setProperty("webdriver.chrome.driver", "C:\\chromedriver.exe");  
           WebDriver driver = new ChromeDriver();  
           driver.manage().window().maximize();  
           driver.manage().deleteAllCookies();  
           driver.manage().timeouts().pageLoadTimeout(40, TimeUnit.SECONDS);  
           driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);  
           driver.get("https://html.com/attributes/select-size/?utm_source=network%20recirc&utm_medium=Bibblio");  
           //Select dropdown by Select class  
           Select select = new Select(driver.findElement(By.xpath("//select")));  
           //select required item from the above dropdown  
           select.selectByValue("Lesser");  
      }  
 }  

Dealing with modal dialog in selenium Webdriver

 package test.test;  
 import java.util.concurrent.TimeUnit;  
 import org.openqa.selenium.By;  
 import org.openqa.selenium.JavascriptExecutor;  
 import org.openqa.selenium.WebDriver;  
 import org.openqa.selenium.WebElement;  
 import org.openqa.selenium.chrome.ChromeDriver;  
 public class ModelDialog {  
      public static void main(String[] args) throws InterruptedException {  
           System.setProperty("webdriver.chrome.driver",  
                     "C:\\Users\\Mutturaj\\Downloads\\chromedriver_win32\\chromedriver.exe");  
           WebDriver driver = new ChromeDriver();  
           driver.manage().window().maximize();  
           driver.manage().deleteAllCookies();  
           driver.manage().timeouts().pageLoadTimeout(40, TimeUnit.SECONDS);  
           driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);  
           driver.get("https://html.com/input-type-file/");  
           WebElement element = driver.findElement(By.xpath("//*[@id='fileupload']"));  
           JavascriptExecutor jse = (JavascriptExecutor) driver;  
           jse.executeScript("arguments[0].scrollIntoView()", element);  
           element.sendKeys("C:/Users/Mutturaj/Downloads/chromedriver_win32/chromedriver.exe");  
           System.out.println("File Uploaded");  
           // activeElement() method clicks the modal dialog  
           driver.switchTo().activeElement();  
           // Click on the button, here in out case we click on the 'Don't allow'  
           // button  
           driver.findElement(By.linkText("Don't Allow")).click();  
           driver.findElement(By.xpath("//input[@type='submit' and @value='submit']")).click();  
           System.out.println("Submitted");  
      }  
 }  

Handling Alert in selenium

 import java.util.concurrent.TimeUnit;  
 import org.openqa.selenium.Alert;  
 import org.openqa.selenium.By;  
 import org.openqa.selenium.WebDriver;  
 import org.openqa.selenium.chrome.ChromeDriver;  
 public class AlertPopup {  
      public static void main(String[] args) {  
           System.setProperty("webdriver.chrome.driver",  
                     "C:\\Users\\Mutturaj\\Downloads\\chromedriver_win32\\chromedriver.exe");  
           WebDriver driver = new ChromeDriver();  
           driver.manage().window().maximize();  
           driver.manage().deleteAllCookies();  
           driver.manage().timeouts().pageLoadTimeout(40, TimeUnit.SECONDS);  
           driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);  
           driver.get("https://mail.rediff.com/cgi-bin/login.cgi");  
           driver.findElement(By.name("proceed")).click();  
           Alert alert = driver.switchTo().alert();  
           System.out.println(alert.getText());  
           alert.accept();  

           // other importent methods  
           /*  
            * alert.getText() alert.dismiss(); alert.sendKeys("text");  
            */  
      }  
 }  

Implicit wait in Selenium

 package learning;  
 import java.util.concurrent.TimeUnit;  
 import org.openqa.selenium.By;  
 import org.openqa.selenium.WebDriver;  
 import org.openqa.selenium.WebElement;  
 import org.openqa.selenium.chrome.ChromeDriver;  
 import org.openqa.selenium.interactions.Actions;  
 import org.openqa.selenium.support.ui.ExpectedConditions;  
 import org.openqa.selenium.support.ui.WebDriverWait;  
 public class MoveMouse {  
      public static void main(String[] args) throws Exception {  
           System.setProperty("webdriver.chrome.driver", "C:\\chromedriver.exe");  
           WebDriver driver = new ChromeDriver();  
           driver.manage().window().maximize();  
           driver.manage().deleteAllCookies();  
           driver.manage().timeouts().pageLoadTimeout(40, TimeUnit.SECONDS);  
           driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);  
           driver.get("https://www.spicejet.com");  
           Actions actions = new Actions(driver);  
           actions.moveToElement(driver.findElement(By.linkText("ADD-ONS"))).build().perform();  
           Thread.sleep(3000);  
           waitForVisa(driver,driver.findElement(By.linkText("Dubai Visa Services")),20);  
           driver.close();  
      }  
//Implicit wait method
      public static void waitForVisa(WebDriver driver, WebElement element,int timeout){  
           new WebDriverWait(driver,timeout).until(ExpectedConditions.elementToBeClickable(element));  
           element.click();            
      }  
 }  

Take screenshots in selenium

 package utility;  
 import java.io.File;  
 import java.io.IOException;  
 import java.text.SimpleDateFormat;  
 import java.util.Calendar;  
 import java.util.concurrent.TimeUnit;  
 import org.apache.commons.io.FileUtils;  
 import org.openqa.selenium.OutputType;  
 import org.openqa.selenium.TakesScreenshot;  
 import org.openqa.selenium.WebDriver;  
 import org.openqa.selenium.chrome.ChromeDriver;  
 public class TakeScreenshot1 {  
      //Takes screenshot method  
      public static void takepics(WebDriver driver,String filePath) throws IOException{  
           File file=((TakesScreenshot) driver).getScreenshotAs(OutputType.FILE);  
           File destFile=new File(filePath);  
           FileUtils.copyFile(file, destFile);  
      }  
      public static void main(String[] args) throws IOException {  
           System.setProperty("webdriver.chrome.driver",  
                     "C:/Users/Mutturaj.h/Desktop/Soft/chromedriver_win32/chromedriver.exe");  
           //Time Stamp  
           String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(Calendar.getInstance().getTime());  
           //File path where screenshot is saved  
           String filePath="C:/Users/Mutturaj.h/workspace/Test/Screenshots/muttu"+""+ timeStamp+".png";  
           WebDriver driver = new ChromeDriver();  
           driver.manage().window().maximize();  
           driver.manage().deleteAllCookies();  
           driver.manage().timeouts().pageLoadTimeout(40, TimeUnit.SECONDS);  
           driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);  
           driver.get("https://www.amazon.in/");  
           // takepics() method is called after page loaded  
           TakeScreenshot1.takepics(driver,filePath);  
      }  
 }  

Retrieve data from excel , data provider and TestNG

 import java.io.File;  
 import java.io.FileInputStream;  
 import java.io.IOException;  
 import org.apache.poi.hssf.usermodel.HSSFWorkbook;  
 import org.apache.poi.ss.usermodel.Row;  
 import org.apache.poi.ss.usermodel.Sheet;  
 import org.apache.poi.ss.usermodel.Workbook;  
 import org.apache.poi.xssf.usermodel.XSSFWorkbook;  
 import org.testng.annotations.DataProvider;  
 public class PoiEx {  
      static Object[][] names = null;  
      static String filePath = "C:\\Users\\Mutturaj\\Desktop";  
      public static Object[][] readExcel(String filePath, String filename, String sheetName) throws IOException {  
           File file = new File(filePath + "\\" + filename);  
           FileInputStream fileInputStream = new FileInputStream(file);  
           Workbook workbook = null;  
           String fileextensionname = filename.substring(filename.indexOf("."));  
           if (fileextensionname.equals(".xlsx")) {  
                workbook = new XSSFWorkbook(fileInputStream);  
           } else if (fileextensionname.equals(".xls")) {  
                workbook = new HSSFWorkbook(fileInputStream);  
           }  
           // Get sheet by name  
           Sheet sheet = workbook.getSheet(sheetName);  
           // Count rows in the sheet  
           int rowCount = sheet.getLastRowNum();  
           int colCount = 2;  
           names = new Object[rowCount + 1][colCount];  
           for (int i = 0; i < rowCount + 1; i++) {  
                Row row = sheet.getRow(i);  
                int lastCellNumber = row.getLastCellNum();  
                for (int j = 0; j < lastCellNumber; j++) {  
                     names[i][j] = (row.getCell(j).getStringCellValue());  
                }  
           }  
           return names;  
      }  
      @DataProvider(name = "array")  
      public Object[][] nana() throws IOException {  
           Object[][] array = PoiEx.readExcel(filePath, "muttu.xlsx", "muttu");  
           return array;  
      }  
      
 }  

 import org.testng.annotations.AfterMethod;  
 import org.testng.annotations.AfterTest;  
 import org.testng.annotations.BeforeMethod;  
 import org.testng.annotations.BeforeTest;  
 import org.testng.annotations.Test;  
 public class NGTest1 {  
      @BeforeTest()  
      public void loadFile() {  
           System.out.println("File open....");  
      }  
      @BeforeMethod  
      public void openBrowser() {  
           System.out.println("Browser opened************");  
      }  
      @AfterMethod  
      public void closeBrowser() {  
           System.out.println("**************Close browser");  
      }  
      @Test(priority = 1, dataProvider = "array", dataProviderClass = PoiEx.class)  
      public void add(String first, String second) {  
           System.out.println(first);  
           System.out.println(second);  
      }  
      @Test(priority = 2)  
      public void substract() {  
           System.out.println("Substraction");  
      }  
      @Test(priority = 3)  
      public void Multiply() {  
           System.out.println("Multiply");  
      }  
      @Test(priority = 4)  
      public void Divide() {  
           System.out.println("Divide");  
      }  
      @AfterTest  
      public void closeFile() {  
           System.out.println("File closed.....");  
      }  
 }