Why You Need to Care About Automated Functional Testing in 2019
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The document discusses the importance of automated functional testing for software products, emphasizing its role in verifying that all documented requirements are met. Functional testing aims to ensure usability, error checking, and feature validation through both manual and automated approaches. It notes the significance of addressing both functional and non-functional testing throughout the development cycle to identify and resolve issues timely.
Why You Need to Care About Automated Functional Testing in 2019
- 2. Why You Need To Care About Automated Functional Testing In 2019? www.lambdatest.com
- 3. What is Functional Testing? Functional Testing is a form of testing performed for estimating the quality of a software product by verifying the features provided by the application with respect to client-requirement documentation. Functional Testing is one measure to make sure whether all the documented requirements have been met & implemented as a part of the final product.
- 4. Importance of Functional Testing As discussed earlier, a tester acquainted with functional testing has to validate the software product from all angles and make sure that the requirements are well documented. Also, different requirement specification documents should be met in the product/application under test.
- 5. Importance of Functional Testing Unlike other forms of testing like unit testing where tests are performed on ‘particular blocks’ or ‘pieces’, functional testing is done on the integrated product. The kind of issues that are discovered post integration testing may be quite different from other forms of testing.
- 6. Some of the core objectives of Functional testing are mentioned below: ● Usability testing: Using manual testing/automation testing/mix of both, testing is done to make sure that there are no usability issues with the product. The user should be able to seamlessly navigate between different screens. ● Error Checking: In order to increase ‘test coverage’, all the boundary & error scenarios are tested thoroughly as a part of Functional testing. ● Compare ‘output’ with ‘expected outcomes’: By supplying relevant test data, all the major functions in the product/application are tested. Understanding The Difference Between Functional Testing & Non-Functional Testing
- 7. Objectives: Functional testing is performed to check whether ‘requirements mentioned in SRS, BRS, CRS, etc.’ are translated into ‘equivalent features/functionalities’. Test Methodology: Functional testing can be performed using manual testing and automated functional testing approach or mix of both, but ‘manual testing’ is a must since testers have to make sure that all the necessary functionalities are implemented. Which comes first: Functional testing is normally performed before Non-functional tests are executed as ‘necessary features’ should be ready before non-functional tests can be performed. Top level differences between Functional & Non-Functional testing
- 8. Functional Testing With Example Imagine that you are building a ‘B2C e-commerce’ application that does the following ● User Sign-up & sign-in ● List the products (in different categories) from the back-end inventory ● Facilitates buying of products via different online payment options
- 9. Functional Testing With Example Screen testing: Allow a new user to sign-up using the sign-up page. A ‘returning’ user should be able to log-in using existing credentials and ‘Forgot Password’ feature should be in place in case the user does not remember the password. Performing the functional testing of example scenario, the team should test the ‘Sign-up & Sign-In’ page with different user/password combinations and record the output.
- 10. Functional Testing With Example Feature testing: Based on the target market, the product team & development team would have identified the ‘potential browsers & devices’ on which the application should be fully- functional with respect to cross browser compatibility. To validate this scenario we perform ‘browser compatibility testing’ where the application is tested on a combination of different devices , Operating Systems and Browsers.
- 11. Functional Testing With Example Testing fallback mechanisms: Let us understand this from cross browser testing point of perspective. In case your application caters to the target market where lot of people use older versions of browsers, your development team should make sure all the requirements are translated into implementation.
- 12. Role of Automation in Functional Testing As Functional testing involves verification of the functionalities implemented in the product, the test team has to make sure that every ‘feature’ is tested. This also includes covering error scenarios and boundary conditions. Manual testing has its own set of limitations since you may need a bigger test team if your product has huge number of features.
- 13. Though automation testing has a huge number of advantages, the product team should make a decision on features that should be tested using ‘manual testing’ & ‘automation functional testing’. There are certain scenarios where manual testing will have an upper-hand; hence your test team needs to figure out the role of automation in verification of product features & functionalities. Points to ‘Ponder’ before venturing into ‘Automated Functional Testing’
- 14. ‘Functional testing’ Is Same As ‘System testing’ Functional testing is one form of System testing or should we say a sub- part of system testing. Though, functional testing is done to test the basic functionalities in the product/application, stress testing is more rigorous in nature. If you are building a hardware product, it also involves certification testing, compliance testing, etc. These tests are not included as a part of Functional testing. Myths Associated With Functional testing
- 15. End-to-end testing is a form of testing where the ‘product’ or ‘application under test’ is tested from all angles from start to finish. In simple words, it is testing approach performed from a user’s perspective. Referring to the earlier example of B2C e-commerce application, while browsing the products on the site/app, there is a possibility that user may face throttling internet connectivity. ‘End-to-End testing’ Is A Part Of ‘Functional testing’
- 16. Automated Functional testing definitely has lot of advantages over manual testing, the primary advantage being better test coverage and savings in terms of time & cost. However, there are many challenges for automated website testing. In test scenarios that cannot be automated or where automation might not be cost-effective i.e. these test scenarios normally require manual intervention or require manual observation. Aim For A 100% Automated Functional testing
- 17. Achieving the right mix of manual & automated cross browser functional testing is extremely critical and testing your product/web application against combinations of (Browsers + Operating Systems + Devices) has become more important than before. Using the cloud infrastructure of LambdaTest, you can put your site/web application under test under different scenarios. Cross Browser Functional Testing Using LambdaTest
- 18. Functional testing should always be performed in the product development cycle to ensure that all the necessary/basic functionalities are working fine in the product. It should be done at an early stage of development so that bugs are logged at the right time, before they snowball into ‘release blockers’. www.lambdatest.com CONCLUSION
- 19. HAPPY TESTING!!