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16 Oct 2020
Jermaine Trotman

Mobile App Testing - A Complete Guide

Mobile App Testing - Significance

Types of Mobile App Testing

  • Usability testing - Mobile app usability testing makes sure that the app user interface and experience is easy to understand and use which improves user satisfaction.
  • Compatibility testing - A mobile app has to be compatible with multiple mobile devices, operating systems, browsers, screen sizes. Compatibility testing makes sure that the app runs perfectly on different environments, specified in the requirement document.
  • User Interface and Experience testing - UI/UX testing is for making the menu, buttons, navigation flow, and many other UI/UX elements at par with the user expectations.
  • Low-level resource testing - issues related to device memory usage, auto-deletion of cache memory and temp files, and local database management comes under low-level resource testing.
  • Performance testing - Testing mobile app performance for the required mobile networks and making sure that the app doesn't crash in several scenarios. Also, analysing the device battery consumption while using the app and monitoring the mobile API usage bottlenecks.
  • Operational testing - Testing the backup and recovery plan in case the battery goes down or ensuring no data loss while updating the mobile app from app stores.
  • Installation testing - It includes validating the app by installing and uninstalling it on several different mobile devices.
  • Security testing - Testing the application to ensure that the user data is safe from phishing or any other cyber attacks.

Mobile App Testing Process

Step 1. Outlining the process

Step 2. Select the type of test you want to run

  • You frequently run a particular type of use cases. It is reasonable to automate the routine tests that you run on a regular basis to check the basic functionality of the mobile app. In the long run, it will pay off the time spent on creating an automated test for such repetitive tasks, as it will save you time and eliminate potential errors that are caused by repetition. 
  • Your test has a predictable outcome. For every conditional testing, test automation is a perfect pick. For example, conditions like ‘if the user taps a button, a new window will open’ has a clearly defined outcome, and there are very little efforts required from the tester’s side to consistently monitor the outcome.
  • You’re testing the app’s compatibility with an array of hardware devices. You will be required to do a lot of testing if you want your app to run smoothly on a variety of mobile devices. Manually conducting all of these tests is challenging. Hence, it is better to use automated tests for device fragmentation.

Step 3. Prepare test cases for different functionalities

  • Requirement-based testing where the performance and reliability of required app features is tested.
  • Business case-based testing the assessment of the app is done based on the business perspective.
  • Unit testing
  • System testing
  • Integration testing
  • UI/UX testing
  • Regression testing
  • Acceptance or beta testing
  • Stress testing
  • Security testing
  • Performance testing
  • Volume testing
  • Reliability testing
  • Load testing
  • Localisation testing
  • Compliance testing

Step 4. Manual Testing

Step 5. Automated Testing

  • Consider the tool that supports various platforms: Your app can be built for iOS or Android or both. You will be required to run tests for different programming languages (.NET, C#, etc.) to test your app. You would not want your testing tool to restrain you with a couple of programming languages. Thus, you should select the mobile app testing tool that allows you to test on a wide range of platforms, even if you are not required to test on those platforms at the moment.
  • The tool that has rich features: Features like recording tests and playback will make mobile app testing easy and convenient for the testers. Also, do remember to manually write automated tests.
  • Reusable and change-resistant: Tool that allows your testers to run reusable and easy-to-maintain tests should be preferred by you, as they will save you a lot of time running new tests in the future.

Step 6. Usability and Beta Testing

Step 7. Performance Mobile App Testing

Step 8. Security and Compliance App Testing


Jermaine Trotman

Jermaine Trotman is the co-founder of Nimble AppGenie, a company renowned for its bespoke mobile app development and web development in e-wallet app development and fintech development.

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