The Test Automation Pyramid is a theoretical framework that serves as a guide for developers and quality assurance professionals. They use this testing methodology to deliver superior software products. The core idea is to provide instantaneous feedback to ensure that any modifications made to the code don’t disturb the existing functionalities.

It saves the developer’s time in ascertaining whether any modifications made cause disruptions in the program. Simultaneously, it contributes to constructing a more trustworthy test suite.

Broadly speaking, this pyramid, also acknowledged as the testing pyramid. It provides instructions for the sort of tests to be encompassed in an automated test collection. Furthermore, it specifies the arrangement and frequency at which these tests should be carried out.

How is the Testing Automation Pyramid Advantageous Teams?

The test automation pyramid helps in having code that is simple, trustworthy, and free from bugs. Under this method, team writes tests before developing any operating code.

The testing pyramid facilitates agile teams to deliver products to the market more rapidly. They do so by having quicker feedback, enhanced quality, and reduced expenses.

Farmore, the pyramid’s facilitates agile teams to manage their time more effectively. The team attain superior results by starting with the simplest tests, specifically unit testing. Agile teams prioritize their tests based on each test type’s associated risks.

As you understood the benefits, it is important to note that conducting test automation pyramid manually can result in excessive time, monetary, and energy expenditure. So choose automated tools and get effective testing and faster feedback at all pyramid levels.

Various Layers of the Test Automation Pyramid:

There are three key levels through which this testing pyramid operates; these are:

  • Unit Tests
  • Integration Tests
  • End-to-End Tests

Level 1 – Unit Tests

Acting as the pyramid’s foundation, unit tests assess individual elements or functionalities. Under this test, SDET roles is to authenticate their performance under isolated circumstances. 

Running various scenarios in unit tests is critical. As the largest subset, these tests are designed to execute swiftly.

The total number of unit tests continue to grow as new features get added. Developers get instant feedback on the performance of individual features. Naturally, a swift unit test suite motivates developers to operate it as frequently as they can.

Recommended Guidelines for Unit Testing

  • Only evaluate codes that are capable of failure.
  • Your unit tests should be repeatable and capable of expansion
  • Engage applicable testing data
  • Go for simple tests methods
  • Choose tests that have readability.
  • Each test should only explore one scenario
  • Automate your unit tests
  • Establish tests that don’t depend on others
  • Employ a disciplined protocol for naming your test cases

Level 2 – Integration Tests

While unit tests analyze small chunks of a codebase, integration tests under test automation pyramid evaluate how these code sections interact with other sections that make up the whole software. 

Integration tests form the test pyramid’s second layer. This tests are not required to run as frequently as unit tests. They are primarily used to certify the interaction of code pieces with external components, such as databases or external services (APIs). 

The software should effectively communicate and retrieve appropriate information for it to function correctly.  Do keep in mind that integration tests run slower than unit tests and need a pre-production environment for their execution.

Recommended Guidelines for Integration Testing

  • Develop a comprehensive plan for testing
  • Undertake tests in manageable groups
  • Don’t ignore integration trials after unit testing
  • Make sure to choose automatic integration testing
  • Incorporate both affirmative and negative trials
  • Your unit and integration test groups should be distinct
  • Integrate testing as a phase in your CI/CD procedure.

Level 3 – End-to-End Tests

End-to-end tests form the apex of the testing pyramid. It ensures the application’s entire functionality, by testing the software from start to finish. 

During these tests, SDET roles is to see from the user’s perspective and simulate their interaction with the software. Keep in mind, that these tests can be brittle as they need to test numerous user scenarios.

Recommended Guidelines for End-to-End Testing

  • Initiate codeless test automation to do the testing process fast
  • Assign priority to your tests
  • Automate your end-to-end testing
  • Make sure you have appropriate testing data
  • Always conduct evaluations from the end-user’s outlook.

Tools, and Libraries for Test Automation Pyramid

The test automation pyramid framework relies on various tools and libraries to enable effective testing at each layer. At the base unit testing level, developers can use JUnit and Mockito to simplify writing isolated component tests.

During API testing, they can use Postman help to validate integration between components by interacting with APIs and asserting responses. Developers may also use Selenium and Cypress to automate browser and mobile app tests during UI testing to check functionality and behavior. 

Throughout the pyramid, additional tools add reporting to enhance test insights, and CI/CD platforms like Jenkins integrate testing into delivery pipelines.

Keep Points to Remember During Test Automation Pyramid

  • Ascertain which test cases should be automated after defining the extent of the automated tests. 
  • Rank your tests depending on risks, as it significantly expedites the process.
  • Incorporate tests in your deployment pipeline for fast product delivery.
  • Choose the best tool for automating the tests. Go for tools all-in-one tools for unit testing, integration testing, and end-to-end testing.
  • Always strive for neatly written test code.
  • Create test cases using diverse test data.
  • Avoid duplicated tests to increase test effectiveness and save time.

Conclusion

So, the test automation pyramid is essentially a structure that categorizes various test types and dictates how frequently they should occur. With this knowledge of the test pyramid, you can evaluate if your development team has built a solid pyramid within your codebase. If you can’t, it’s advisable to contact expert test automation companies.