Get Text of a WebElement

Question

I'm learning selenium and writing automation script for this website.

I'm trying to get value of the error message, I identified Error Message WebElement using xpath:

".//*[@id='ajax_loginform']/p[@class='response']"

I tried using the getText() and getAttribute("innerhtml") functions but both return null.

I am sure that the Error Message is identified because TestNG told me that.

By the way when I use following xpath:

".//*[@id='ajax_loginform']/p[contains(text(), 'ERROR')]"

the Error Message is not identified.

Here is my java test code:

public class LoginVerification {

private WebDriver driver;
private String baseURL = "http://store.demoqa.com/";

@DataProvider(name = "Login Data")
public static Object[][] loginData(){

    return new Object[][]{{"admin", "password"}, {"tester", "password"}};
}

@BeforeTest
public void configure(){
    driver = new FirefoxDriver();
    driver.get(baseURL);
}

//Verify that user cannot login with invalid account
@Test(dataProvider = "Login Data")
public void verifyUserCannotLoginWithInvalidAccount(String username, String password){
    //Click on My account link
    WebElement myAccountLink = driver.findElement(By.xpath(".//*[@id='account']/a"));
    myAccountLink.click();

    //input username, password
    WebElement usernameTextbox = driver.findElement(By.id("log"));
    usernameTextbox.sendKeys(username);

    WebElement passwordTextbox = driver.findElement(By.id("pwd"));
    passwordTextbox.sendKeys(password);

    //click login button
    WebElement loginButton = driver.findElement(By.id("login"));
    loginButton.click();

    //verify that "ERROR: Invalid login credentials." display
    WebElement errorMessage = driver.findElement(By.xpath(".//*[@id='ajax_loginform']/p[@class='response']"));
    String innerHTML = errorMessage.getAttribute("innerhtml");
    System.out.println(innerHTML);
    System.out.println(errorMessage.getText());
    Assert.assertEquals(errorMessage.getText(), "ERROR: Invalid login credentials.");
}

@AfterTest
public void cleanUp(){
    //driver.quit();
}
}

Here is my project.

Answer 1

Your Xpath for the error appears incorrect. and should be

//*[@id="ajax_loginform"]/p[1]/strong

You will notice in the HTML the "Error" is within tags and not the

itself

<strong>ERROR</strong>

Your Assert will need to be updated accordingly

Assert.assertEquals(errorMessage.getText(), "ERROR", "Expected error message not returned, instead returned" + errorMessage.getText();

You can then add an additional assert to the remaining text if required. I have also added in an error message as this will be invaluable for debugging as your project expands and is generally good practice.

Answer 2

Use Explicit wait, Comment all your code after loginButton.click(); and add following 2 lines.

WebDriverWait wait = new WebDriverWait(driver,30);
wait.until(ExpectedConditions.textToBePresentInElementLocated(By.xpath(".//*[@id='ajax_loginform']/p[1]"), "ERROR: Invalid login credentials."));

Explicit wait will wait until your text condition appears, if your text does not appear within 30 sec it will throw an error

Answer 3

I solved the first problem by using explicitly Wait.

//wait until error message display
    expliciticWait.until(
            ExpectedConditions.visibilityOfElementLocated(
                    By.xpath(".//*[@id='ajax_loginform']/p[@class='response']")));

    //verify that "ERROR: Invalid login credentials." display
    WebElement errorMessage = driver.findElement(By.xpath(".//*[@id='ajax_loginform']/p[@class='response']"));
    String innerHTML = errorMessage.getAttribute("innerhtml");
    System.out.println(innerHTML);
    System.out.println(errorMessage.getText());
    Assert.assertEquals(errorMessage.getText(), "ERROR: Invalid login credentials.");

But the second problem is when I identify error message using following XPath expression still not solved.

".//*[@id='ajax_loginform']/p[contains(text(), 'ERROR']"

I would like to use this XPath expression because the web updates.

Answer 4

Can you try using the PageName method in following code:

public static void PageName() throws InterruptedException {
    String actualTitle = "Change Password";
    String title =Driver.dr.findElement(Xpath).getText();
    if (title.equals(actualTitle)) {
        System.out.println("Title is Matched");
    } else {
        System.out.println("Title is Mismatched.");
    }
    Thread.sleep(2000);
}

Answer 5

public class LoginVerification {

    private WebDriver driver;
    public WebDriverWait wait;
    private String baseURL = "http://store.demoqa.com/";

    @DataProvider(name = "Login Data")
    public static Object[][] loginData(){

        return new Object[][]{{"admin", "password"}, {"tester", "password"}};
    }

    @BeforeTest
    public void configure(){
        System.setProperty("webdriver.chrome.driver","./chromedriver.exe");
        driver = new ChromeDriver();
        driver.get(baseURL);
    }

    //Verify that user cannot login with invalid account
    @Test(dataProvider = "Login Data")
    public void verifyUserCannotLoginWithInvalidAccount(String username, String password){
        //Click on My account link
        WebElement myAccountLink = driver.findElement(By.xpath(".//*[@id='account']/a"));
        myAccountLink.click();

        //input username, password
        WebElement usernameTextbox = driver.findElement(By.id("log"));
        usernameTextbox.sendKeys(username);

        WebElement passwordTextbox = driver.findElement(By.id("pwd"));
        passwordTextbox.sendKeys(password);

        WebElement checkbox =driver.findElement(By.name("rememberme"));
        boolean checkClick = checkbox.isSelected();
        if(!checkClick==true){

            checkbox.click();
            System.out.println("Clicked the checkbox");

        }else if(!checkClick==false){

            checkbox.click();
            System.out.println("Unclicked the checkbox");
        }else{
            System.out.println("No checkbox");

        }

        //click login button
        WebElement loginButton = driver.findElement(By.id("login"));
        loginButton.click();

        //verify that "ERROR: Invalid login credentials." display
        wait = new  WebDriverWait(driver,30);
        wait.until(ExpectedConditions.visibilityOfAllElementsLocatedBy(By.xpath(".//*[@id='ajax_loginform']/p[1]")));

        WebElement errorMessage = driver.findElement(By.xpath("//*[@id='ajax_loginform']/p"));
        /* String innerHTML = errorMessage.getText();
    System.out.println(innerHTML);*/
        if(username.equalsIgnoreCase("admin")){
            System.out.println(errorMessage.getText());
            Assert.assertEquals(errorMessage.getText(),"ERROR: The password you entered for the username admin is incorrect. Lost your password?","Invalid credential");
        }

        if(username.equalsIgnoreCase("tester")){
            System.out.println(errorMessage.getText());
            Assert.assertEquals(errorMessage.getText(),"ERROR: The password you entered for the username tester is incorrect. Lost your password?","Invalid credential");

        }
    }

    @AfterTest
    public void cleanUp(){
        driver.quit();
    }
}