Selenium – Use Assertions to Verify the Test Output

In Software Testing we need to verify the output of test case against a predefined set of Test Data. Selenium provides various Selenese commands to achieve this.  Let us try to explore some of the situations we come across in Test Automation.

  1. Verify whether an object is visible (such as a button, link, etc)
  2. Verify whether a checkbox is checked or unchecked.
  3. Check if an object is present on the screen
  4. Check if an Editbox is editable (i.e. we can key in values into edit box)
  5. Check if a particular value is selected in the dropdown box

Selenium provides several different APIs for automating the Assertions.

I have created a sample web site and uploaded to Google docs.  Download link

Download the sample web site and unzip into a folder.  I will be using the same web site in my sample Selenium code.

Following are some of the Selenium assertions:

  1. assertAlertPresent – checks whether an alert is present
  2. assertAllButtons – compares the buttons present on the screen with the provided values in the test
  3. assertAllLinks – compares all the links present on the screen with the one’s given in the test
  4. assertChecked – verifies whether the particular checkbox is checked
  5. assertEditable – verifies the Edit box whether it is possible to key in values into the edit box
  6. assertSelectedValue – compares the given value with the selected value in the specified dropdown

Let us try to use these assertions in the Selenium Test by recording a test.  After recording we will export them into JUnit format and compare them to the recorded test in the table format in Selenium IDE.


In the above picture we can see the exact commands used in the Selenium IDE for assertions whereas in the below code which is exported in JUnit format from the Selenium IDE, only assertTrue and assertEquals are present.  Here, other selenium methods such as selenium.getSelectedLabel("city"), selenium.isTextPresent("Name of the Customer"), and selenium.getAlert() are used for assertions.

package com.selftechy.assertions;

 * Author - Seetaram Hegde
import com.thoughtworks.selenium.*;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.Assert;

public class SeleniumAssertions extends SeleneseTestCase {
	public void setUp() throws Exception {
		selenium = new DefaultSelenium("localhost", 4444, "*chrome", "");

	public void testAssertions() throws Exception {
		//change the below directory path to the one where you have unzipped the sample website files"file:///F:/Helios-Workspace/Sample%20Website/CreateAccount.htm");
		selenium.type("FirstName", "seetaram");
		selenium.type("Lname", "hegde");
		selenium.type("street", "HSR Layout");"male");"kannada");"english");"hindi");"Save");
		assertEquals("New Account Created", selenium.getAlert());"link=Click to View Customer Information");
		assertTrue(selenium.isTextPresent("Below table contains the information about the Customer's transactions"));
		assertTrue(selenium.isTextPresent("Name of the Customer"));"link=Go to Account Creation Screen");
		assertEquals("Bangalore", selenium.getSelectedLabel("city"));

	public void tearDown() throws Exception {

Use the following Selenium APIs for assertions:

  1. selenium.isTextPresent() – To verify whether the specified text is present
  2. selenium.getAlert() – To close the Javascript alert
  3. selenium.getSelectedLabel() – To get the selected label (dropdown option) from the dropdown
  4. selenium.chooseOkOnNextConfirmation() – To click the OK button on the Javascript alert
  5. selenium.chooseCancelOnNextConfirmation() – To click the Cancel button on the Javascript alert
  6. selenium.doubleClick(“Locator”) – double click an object
  7. selenium.isChecked("locator") – Verify whether a checkbox is checked or not
  8. selenium.isEditable("locator") – Verify whether an Editbox is editable or not
  9. selenium.isElementPresent("locator") – This is a very much useful Selenium method.  Whenever there is a need to wait for some time to load the page then we can use this API in conjunction with Thread.sleep()
  10. selenium.isVisible() – To verify whether the object is visible

There are some more Selenium APIs available but above are the one’s which are most regularly used.

Comments 15

  • Hi seetaram,

    I read thru ur blog. Its was really useful for me to start with Selenium automation. In this particular blog you have mentioned about the ‘Selenium APIs for assertions’. But all these have changed for the web driver i think.

    Could you pls list the assertions to be used while using web driver.


  • Hi,

    This blog is worth and really helpful. I appriciate and anticipate still more articles on Selenium.

    Thanks & Regards,

  • Hi Seetharam,
    Your blog is good and useful.Can you give an example for assertAllButtons
    Also is there any way to validate the options from a dropdown with a given set of values?

  • Also i am not able to use assertAllButtons ? do i need to import any extra jar to make use of this?

  • hai when i run the above code with junit am getting an error in the main funtion which is below the annoatation @test can u please help me..

  • Thanks seetaram,
    can please convert this into phpunit

    • You can definitely do that. I had to work on a POC where the client wanted us to develop the scripts in PHP. Using PHPUnit, use PHP Webdriver I do not remember exactly from where I have downloaded (remember like it was Git) and there you need to run the selenium server unlike java client for web driver where you need not to run any server

  • Hi Seetaram,

    Being at begineers level I have few queries

    1)assertEquals(“New Account Created”, selenium.getAlert()); > Here does this mean ‘if’ there is a alert popup it was closed or this is the syntax?
    2)assertTrue(selenium.isTextPresent(“Name of the Customer”));
    Can this be used for method call if Ye and how.Any other example for method call will be appreciated.

  • Hi Seetha Ram, God Bless you and your family. You are doing a wonderful job for us. Thanks for a very much detail explanation.

  • Hi,
    what senelium verify method to use when I search person in popup window and if there are more than one hit, test should be aborted. i.e. searching John Smith gives many names

  • Hi seetaRam
    Thanks for the information I need a code on if we are writing test cases on gmail and validation of username and password..

  • Hi,

    suppose if the page has page not found error then i have to mark it as fail and if the page doesnt have that error then i should mark it as fail.If i have to check it buy using assert how can i do

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.