How to Best Use Selenium to Automate Application Testing


Selenium is a software testing tool used in the software development process to automate testing tasks. It is an open source tool that helps in automating web applications and its usage has been steadily increasing over time due to its various benefits. Selenium is used to automate UI-related tasks. This tool works well with all major browsers present in the market. Tests are written using Selenium IDE, Eclipse, WebDriver or any other IDE of your choice.

Tests can be created for a single item or multiple items as needed. This article will give you a clear idea on how to best use Selenium to automate application testing and how it can be used to increase productivity.

Test early

Test automation is a crucial part of the software development process. This saves money, increases productivity and improves quality. When regression test cases can be automated early in the project lifecycle, several benefits can be gained from this approach:

  • Earlier test case coverage: Because automation code is typically written as part of the application code, it is often more accurate and faster than manual testing. Therefore, more complex scenarios that would have been difficult to automate (manually) are covered earlier in the lifecycle.
  • Improved efficiency: Automation code is usually reused in similar projects. Since most test cases can be executed without any human intervention, less time is spent on executing manual tests compared to executing manual test cases.
  • Reduced Effort: Performing regression testing manually requires a lot of effort and time and should therefore be avoided if possible. Automating these tests allows testers to perform other activities that add value to the product, such as exploratory testing or validating defects reported by customers.
  • Reduced costs: Manual testers are expensive, so it makes sense to use them for exploratory testing or other activities that require human intelligence rather than just running automated scripts.

Use the BDD framework

Although you can use Selenium without a test framework, it is better to use one. Most frameworks support BDD (Behaviour Driven Development). BDD follows a test pyramid model where there are far more low-level unit tests than high-level end-to-end tests. A good BDD framework provides an infrastructure to run these tests and report their results.

Tests should be coded using a BDD (behavior driven development) framework so that the tests describe what an application should do instead of how it works under the hood. This makes it easier for developers who don’t have in-depth knowledge of the technology under test to understand what changes will break existing functionality and requires fewer resources to fix bugs.

  • The BDD framework is easy to understand.
  • The BDD framework is easy to maintain.
  • The BDD framework is easy to read and understand by other people because the scenarios are written in plain language.
  • The BDD framework reduces the cost of maintaining test scripts.
  • The BDD framework can be used for both web and non-web applications.
  • Tests created with a BDD tool can also be understood by non-technical users, making it more ideal for acceptance testing of any application.
  • As it follows the Given-When-Then pattern, it can be easily integrated with any existing testing framework such as JUnit, TestNG Junit, etc.
  • More importantly, the end goal of BDD is to make tests more readable by non-technical users such as business analysts and product owners, which means they will be able to better examine your code.

Take screenshots on failure

Selenium is the most popular tool used to automate web application testing. Selenium can be used to record and playback a sequence of user actions on a web application, which is useful for regression testing. Selenium also supports functional testing, where actual results are compared to expected results.

You can also use Selenium to perform more sophisticated testing by automatically taking screenshots in the event of a crash. Selenium has built-in features that allow you to do this.

Early test design through automation

Selenium is a powerful tool and has the potential to save you a lot of time when it comes to automating your QA process. However, it’s not always easy to know how best to use it to get the maximum return on investment.

As a general rule, you should always design your tests before attempting to automate them. This includes deciding what your goals are and what test data you need to achieve them; if you automate first, there is a risk that some of your scripts will turn out to be redundant or won’t cover all the required areas of your application. If this happens, you’ll have to go back and modify previous tests to complete the sequel, which can be both difficult and time-consuming.

Identify what to automate

The advantage of automation testing is that it provides long-term assurance that your application is stable and bug-free. It also lets you change the app or its environment without having to manually test each time, making it easier for your development team to quickly release new features. However, test automation can be difficult if you don’t know what to test and how.

The best way to know what should be automated and what shouldn’t is to use a risk-based approach. This means that you first identify the risks in your application and then focus on automating the tests that will mitigate those risks.

Automation of frequent and predictable test cases

Automating the most frequent and predictable test cases is a well-known test automation technique. But how exactly can we do it?

First, we need to understand what frequent and predictable mean. Frequency means “the number of times the test case is executed each day”. Predictability means “how long you need to wait for this test case to fail”. These two properties are very different. For example, a test that only runs once a month might be very frequent if the application rarely fails in the meantime, but that’s not at all predictable.

Frequent and predictable test cases are easy to automate. The problem is that these aren’t necessarily the most important tests from an end-user perspective.

The next step is to define the most important test cases from the end-user’s point of view, determining which ones help him achieve his business goals and succeed in his job (and therefore lead to promotions). ). Essentially we make a list of all business critical features/scenarios and find a way to automate them (manually or with automated tests) as they are likely to run more frequently than other scenarios as they cannot be completed without going through many of these scenarios.

Creating high-quality test data

Selenium is an automated testing tool that can be used to automate browser-based testing. When it comes to developing test data or creating test cases, we don’t know much about Selenium.

Test data for Selenium refers to the data that will be provided to Selenium browser automation code to perform the test. This means we need to generate real-world data where the user performs some operation using some data and checks it against some expected results.

The best way to do this is to use test data generators. A test data generator is software used by a team to create high quality test data for testing any application, website or system. Using a test data generator helps in creating better test cases and provides better coverage of the target application.

Test data generators are used by many companies to simplify their testing process and increase their productivity.

Choosing the Right Selenium Test Automation Platform

Test automation tools are becoming more advanced, software testing is a hot field and job market. In addition, your business must save time and money. You need to know how to choose the right Selenium test automation platform for your needs.

You might think that if you have a great software development team, you don’t need such extensive automation. Not so fast!

The modern development process requires continuous integration and delivery of new features. If you’re working with a small team or even a single developer, you can’t afford to have bugs in your app because fixing them will take too long.

So what should you keep in mind?

1) Scalability

Do you want to test for one product or hundreds of products? Do you need support for legacy applications? Do you plan to use the same test suite for different platforms? A good Selenium test automation platform should be able to handle anything from a desktop application to an application for mobile devices with different screen sizes and operating systems.

2) Performance

How many tests can your software run in a specified period? How much memory does this require? What if the test server has limited resources? Can the test platform monitor its performance? etc

Selenium test automation platforms like Lambdatest allow you to write functional and automated tests. Cross-browser testing tools like LambdaTest will run your tests on over 3000 environments, including all major browsers on the appropriate operating systems, and report detailed results and screenshots right to your screen.

You can run the same test suite in different browsers to make sure your website works as expected. You don’t need to install any software, so you can be sure that your test system is free from any trace of corporate IT policy. Your test results will be stored in a central location, allowing you to easily find and compare results with other browsers.


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