Now that we learned the workflow in a TestNG script, let’s update our ‘FirstTestNScript’ script to include two test cases that we mentioned in our last post.
First Test Case:Navigate to New Tours application and perform successful login.
Second Test Case:Navigate to New Tours application and perform successful registration. Click ‘Register’ link to go Register Page. Enter first name, last name, username, password, confirm password and click Submit to complete registration process.
This is how our test website looks like:
- First step is to create some test data for our first test case. It will require an username and password as test data. To accommodate this, we will update the ‘@DataProvider‘ method with a new name and we will also use two sets of test data (even though it’s same data). This will allow our test to execute twice with different set of data. Below is the code for the ‘@DataProvider‘ method.
//DataProvider method for login data @DataProvider public Object[][] loginDP() { //username = demo, passowrd = demo return new Object[][] {{"demo", "demo"}, {"demo", "demo"}}; } - Every selenium script starts with a driver initialization. We will initialize the WebDriver inside our class but outside of all methods.
Initialize WebDriver inside the Class - Next step is to set the system properties. System properties setting needs to be done before assigning the WebDriver to a browser driver. In our test, we will set the system properties inside ‘@BeforeTest‘ method as we are not changing the browser type. However you can set the property inside ‘@Test‘ method also. Below is the code for ‘@BeforeTest‘.
//Setting System Properties @BeforeTest public void beforeTest() { System.out.println("This is Before Test"); // Setting System properties System.setProperty("webdriver.chrome.driver", System.getProperty("user.dir") + "/Chrome/chromedriver"); } - After setting the property, next step is to assign the WebDriver to a browser driver. Since we are planning to use the same browser type for both of our tests, we will do the browser assigning part in ‘@BeforeMethod‘. Note that ‘@Before/AfterMethod‘ always execute before and after of every ‘@Test‘ method. Below is the code for ‘@BeforeMethod‘.
//Assign WebDriver @BeforeMethod public void beforeMethod() { System.out.println("This is Before Method"); // Assign WebDriver to ChromeDriver driver = new ChromeDriver(); //Maximize window driver.manage().window().maximize(); //Navigate to New Tours URL driver.get("http://newtours.demoaut.com"); } - Let’s create our first test case. We will use ‘@Test‘ method for our logic. For better understanding, we will update our ‘@Test‘ method with a new name and we will also use the new Data Provider. The ‘@Test‘ method will have new set of parameters. By default TestNG provides Integer type and String type parameters. Since our Data Provider has only String types, we will update the same in ‘@Test‘ method also.
@Test(dataProvider = "loginDP") public void firstTestCase(String username, String password) { System.out.println("This is our First Test Method"); //Enter username as demo driver.findElement(By.name("userName")).sendKeys(username); //Enter password as demo driver.findElement(By.name("password")).sendKeys(password); //Click Sign in button driver.findElement(By.name("login")).click(); //Assert if Sign Off is displayed after logging in Assert.assertTrue(driver.findElement(By.linkText("SIGN-OFF")).isDisplayed()); System.out.println("First Test Case Passed"); } - Once the test is completed, next step is to close the driver. As mentioned, ‘@AfterMethod‘ comes after the ‘@Test‘ method, so the best way is to update the ‘@AfterMethod‘ with the closing codes. Below is the code for ‘@AfterMethod‘ method.
@AfterMethod public void afterMethod() { System.out.println("This is After Method"); // Close and quit the driver to close the Browser driver.close(); driver.quit(); } - Now that we completed our first test case, let’s execute the script by doing a right click on ‘FirstTestNScript’ and click Run As -> 2.TestNG Test.
- As we complete our execution we will see following messages in the console.
First Test Case Passed - Now that our first test case is completed, let’s focus on our second test case. Second Test Case requires a different data set up. For that we will create a new Data Provider. Below is the code for a new ‘@DataProvider‘ method. We will name it as ‘registerDP’. Notice that we used only one set of data. This means the second test case will execute only once.
//DataProvider method for registering @DataProvider public Object[][] registerDP() { /*first name = fname, last name = lname, username = user, password = pwd, confirm password = pwd */ return new Object[][] {{ "fname","lname","user","pwd","pwd"}}; } - To create a new test case, we will have to create a new ‘@Test‘ method. As mentioned, the logic of a test case is always written in ‘@Test‘ method. Below is the code for a new ‘@Test‘ method. Notice that it has a name “secondTestCase” and it uses a new Data Provider “registerDP”. The parameters are also updated.
@Test(dataProvider = "registerDP") public void secondTestCase(String fname, String lname, String username, String pwd, String cpwd){ System.out.println("This is Second Test Method"); //Click Register link in Home page driver.findElement(By.linkText("REGISTER")).click(); //Enter first name as fname driver.findElement(By.name("firstName")).sendKeys(fname); //Enter last name as lname driver.findElement(By.name("lastName")).sendKeys(lname); //Enter username as user driver.findElement(By.name("email")).sendKeys(username); //Enter password as pwd driver.findElement(By.name("password")).sendKeys(pwd); //Enter confirm password as cpwd driver.findElement(By.name("confirmPassword")).sendKeys(cpwd); //Click Submit to complete registration process driver.findElement(By.name("register")).click(); System.out.println("Second Test Case Passed"); } - Now that our second ‘@Test‘ method is also complete, we can run our ‘FirstTestNScript’ script to execute both of our test cases. Notice that for second test case we don’t have to update ‘@Before/AfterMethod‘ as the same methods will be executed for both ‘@Test‘ methods. Below is the test results after execution is complete. Notice that first test case runs twice and second test case runs only once. This is because the Data Providers are defined in that manner.
Test Results - If we refresh the ‘test-output‘ folder, there will be many HTML reports. We can view them by doing a right click and Open With -> Web Browser.
- Complete code for this project is provided below. Unused annotations can be removed.
package com.selenium.testcase; import org.testng.annotations.Test; import org.testng.annotations.BeforeMethod; import org.testng.annotations.AfterMethod; import org.testng.annotations.DataProvider; import org.testng.annotations.BeforeClass; import org.openqa.selenium.By; import org.openqa.selenium.WebDriver; import org.openqa.selenium.chrome.ChromeDriver; import org.testng.Assert; import org.testng.annotations.AfterClass; import org.testng.annotations.BeforeTest; import org.testng.annotations.AfterTest; import org.testng.annotations.BeforeSuite; import org.testng.annotations.AfterSuite; public class FirstTestNScript { WebDriver driver; @Test(dataProvider = "loginDP") public void firstTestCase(String username, String password) { System.out.println("This is our First Test Method"); // Enter username as demo driver.findElement(By.name("userName")).sendKeys(username); // Enter password as demo driver.findElement(By.name("password")).sendKeys(password); // Click Sign in button driver.findElement(By.name("login")).click(); // Assert if Sign Off is displayed after logging in Assert.assertTrue(driver.findElement(By.linkText("SIGN-OFF")).isDisplayed()); System.out.println("First Test Case Passed"); } @Test(dataProvider = "registerDP") public void secondTestCase(String fname, String lname, String username, String pwd, String cpwd) { System.out.println("This is Second Test Method"); // Click Register link in Home page driver.findElement(By.linkText("REGISTER")).click(); // Enter first name as fname driver.findElement(By.name("firstName")).sendKeys(fname); // Enter last name as lname driver.findElement(By.name("lastName")).sendKeys(lname); // Enter username as user driver.findElement(By.name("email")).sendKeys(username); // Enter password as pwd driver.findElement(By.name("password")).sendKeys(pwd); // Enter confirm password as cpwd driver.findElement(By.name("confirmPassword")).sendKeys(cpwd); // Click Submit to complete registration process driver.findElement(By.name("register")).click(); System.out.println("Second Test Case Passed"); } // Assign WebDriver @BeforeMethod public void beforeMethod() { System.out.println("This is Before Method"); // Assign WebDriver to ChromeDriver driver = new ChromeDriver(); // Maximize window driver.manage().window().maximize(); // Navigate to New Tours URL driver.get("http://newtours.demoaut.com"); } @AfterMethod public void afterMethod() { System.out.println("This is After Method"); // Close and quit the driver to close the Browser driver.close(); driver.quit(); } // DataProvider method for login data @DataProvider public Object[][] loginDP() { // username = demo, passowrd = demo return new Object[][] { { "demo", "demo" }, { "demo", "demo" } }; } // DataProvider method for registering @DataProvider public Object[][] registerDP() { // first name = fname, last name = lname, username = user, password = // pwd, confirm password = pwd return new Object[][] { { "fname", "lname", "user", "pwd", "pwd" } }; } @BeforeClass public void beforeClass() { System.out.println("This is Before Class"); } @AfterClass public void afterClass() { System.out.println("This is After Class"); } // Setting System Properties @BeforeTest public void beforeTest() { System.out.println("This is Before Test"); // Setting System properties System.setProperty("webdriver.chrome.driver", System.getProperty("user.dir") + "/Chrome/chromedriver"); } @AfterTest public void afterTest() { System.out.println("This is After Test"); } @BeforeSuite public void beforeSuite() { System.out.println("This is Before Suite"); } @AfterSuite public void afterSuite() { System.out.println("This is After Suite"); } }
With this we came to end on TestNG scripting. In the next post we will focus on configuring our test case with the help of testing.xml. Please share your comments. Happy Learning!
Additional Information:
There are many ways to configure the ‘@Test‘ method. Like for instance we can decide on which order the tests need to be executed, similarly we can group our tests in the way we want. For example in our above ‘FirstTestNScript’ script, if we want to execute the second test case first and then execute the first test case, we can easily configure this by setting the priority inside ‘@Test‘ annotation. Below will be code if we are setting the priority.
@Test(dataProvider = "loginDP", priority=2)
public void firstTestCase(String username, String password) {
System.out.println("This is our First Test Method");
// Enter username as demo
driver.findElement(By.name("userName")).sendKeys(username);
// Enter password as demo
driver.findElement(By.name("password")).sendKeys(password);
// Click Sign in button
driver.findElement(By.name("login")).click();
// Assert if Sign Off is displayed after logging in
Assert.assertTrue(driver.findElement(By.linkText("SIGN-OFF")).isDisplayed());
System.out.println("First Test Case Passed");
}
@Test(dataProvider = "registerDP", priority=1)
public void secondTestCase(String fname, String lname, String username, String pwd, String cpwd) {
System.out.println("This is Second Test Method");
// Click Register link in Home page
driver.findElement(By.linkText("REGISTER")).click();
// Enter first name as fname
driver.findElement(By.name("firstName")).sendKeys(fname);
// Enter last name as lname
driver.findElement(By.name("lastName")).sendKeys(lname);
// Enter username as user
driver.findElement(By.name("email")).sendKeys(username);
// Enter password as pwd
driver.findElement(By.name("password")).sendKeys(pwd);
// Enter confirm password as cpwd
driver.findElement(By.name("confirmPassword")).sendKeys(cpwd);
// Click Submit to complete registration process
driver.findElement(By.name("register")).click();
System.out.println("Second Test Case Passed");
}
Similarly there are many other ways by which we can configure the ‘@Test‘ method. Visit the below link for more information: