Feb 22, 2023 5 min read
Verifications in automation testing
Verification in automation testing is important. We can check by comparing the expected and actual results in the form of text, links, pictures, screenshots, values, messages, and pop-ups. We will analyze the most used and simple verification methods for JavaScript frameworks in this article.
What is verification in software testing?
Verification is a process of determining if the software is designed and developed as per the requirements that we have.
When the task of automating testing arises, you can make a bunch of clicks and enter information in all the fields, but to be sure that there are no bugs, you need to add test verification. You can also enhance your understanding of automated regression testing by reading our article.
Why do we use verification in automation testing?
Verification in software testing means verifying not only the functions but also what was shown to the user. That is, whether the user will see an error message if something goes wrong, or whether the displayed question is correct. You can read our article about test automation frameworks to gain insights into the latest advancements and best practices in automated testing.
Verification methods
Types of verification methods
assert
,expect
, andshould
.Verification by Assert
assert
andassert.ok()
methods in Node.js andasserts
that are provided by Chai framework.assert
statement. These will be included in the error messages should your assertion not pass. However, if you need to see the expected statement and the actual statement in the terminal, this style will not show both results, unlikeexpect
.Example of Chai assert:
Verification by Expect
expect
methods in the Chai framework and also in Webdriver IO or Playwright (based on the Jest framework).Example of Chai expect:
expect
allows you to include arbitrary messages to prepend to any failed assertions that might occur.Some examples of wdio expect:
Verification by Should
should
methods in Chai framework and in Cypress.should
style in by Chai allows for the same Chainable assertions as theexpect
interface, however it extends each object with ashould
property to start your Chain. This style has some issues when used with Internet Explorer, so be aware of browser compatibility.Example of Chai should:
assert
andexpect
interfaces do not modify Object.prototype, whereasshould
does. So they are a better choice in an environment where you cannot or do not want to change Object.prototype..should()
is executed, it is transformed into certain methods of Chai or Chai-jQuery or Sinon-Chai.Example of Cypress should:
Let's summarize!
In general, three types of checks are used: assert, expect, and should. We can combine different methods in one test. Which methods to use also strongly depends on the requirements of the customer and the specifics of the application. Talk to our team for comprehensive automation testing services tailored to your needs. We're here to discuss your requirements and provide you with the best solutions to enhance the efficiency and effectiveness of your software testing processes.
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Frequently Asked Questions
What is verification in automation testing?
Verification in automation testing refers to the process of checking that a product, system, or component meets specified requirements. It ensures that the software being developed is as per the specifications and requirements defined.
How does verification differ from validation in testing?
Verification ensures that the system (or component) is being built correctly, whereas validation ensures that the right system (or component) is being built. Verification focuses on processes, activities, and conditions, while validation focuses on the final product's functionality.
Why are verifications important in automated testing?
Verifications are crucial because they confirm that the code behaves as expected. Without proper verifications, there might be defects in the software which could remain unnoticed.
Is it possible to conduct automation testing without verifications?
While it's possible, it's not advisable. Without verifications, automation tests would lack purpose. They would execute actions on the software but wouldn't confirm the correctness of the results.
How frequently should verifications be performed during automation testing?
Verifications should be integrated into every test case. Every time an action is performed or a function is invoked in the software, a verification should be in place to confirm that the expected outcome is achieved.