Testing a mobile application
Today's mobile application has become very important for the business. But cellular applications are not just another version of the desktop application. Cellular applications are different from desktop applications because cellular devices are different from desktop machines. Therefore, cellular applications need to be built and tested with this difference in consideration.

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The following are some of the things that need to be considered when testing the mobile app:

Test on different screen sizes: Mobile devices are available in various screen sizes. The mobile application must be able to adjust the layout according to the screen size of the device.
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The application screen that needs to be scrolled to view content or only use part of the device screen to display small content does not provide a good user experience. So, it is important that when you test the mobile application, you make sure to test it on different screen size.

Test on different device configurations: There are so many options available on the mobile market, starting from low up to high, so it becomes a real challenge to support your mobile application on each device. Practically, not every type of mobile application can be supported on any available devices.
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It is good to identify a series of minimum configurations needed to run applications on mobile devices. You can then make the application only available for devices that have configurations similar to this set or better than this.

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It is important to ensure that this application provides a decent user experience on cellular devices where it is claimed to be supported.

Performance test: cellular devices have limited processing and memory power compared to desktop machines. Cellular applications need to be optimized to have good performance with limited processing and memory power.
No one likes the slow cellular application where the response time of the application is not realistic delayed or the application becomes unresponsive because of the memory power or low processing power.

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It is good to know the average cellular device configuration for targeted users and make sure your application performs well on mobile devices from the configuration. This is confirmed by testing your mobile application for performance. So, this is a one-step that can be proven to be important for the success of your application.

Testing on different OS versions: OS updates are often available for cellular devices but not every device updates to the latest version at the same time.
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Some devices are updated as soon as the update option is available, some are updated after several delays and some continue to function on the OS version except forced updates.

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Apart from the public version released, some OS versions are also available for users to try in beta mode. The mobile application needs to work smoothly with the device all OS versions.

If maintaining an application for all of these OS versions become too many overhead, then drop support for some of the obsolescence that does not form the main part of your user base can be a good idea.

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But make sure you know what OS version of the application you will support and then test your application for them is an important step when testing your mobile application and it shouldn't be missed.

Testing for the upcoming OS version: new OS version with major changes in the development kit, design or library is quite often announced. It is important to understand how this change will have an impact on your mobile application. To support the new OS version, does your mobile application also need big changes? Does your mobile application still perform and not become slow with the upcoming OS version?
Also read : test automation tools

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