To verify mobile applications and programs, testers can use both real devices and emulators. The product testing process on real devices shows the actual behavior of the application used by end users.
Emulators are not real devices. Simply reproduce the main features of the mobile software. Emulators must be installed on a PC or on mobile devices. In addition, specialists can also use virtual device simulators. There are several differences between simulators and emulators.
How emulator based test simulators differ?
Development language. Simulators are created in high-level languages. Emulator - in the language of the assembly of a level of the machine.
Debugging. It can be quite difficult to use for debugging simulators and emulators are more suitable for this purpose.
Replacement of the original software. Software simulators have only partially and emulators can send completely.
The simulators are designed to test the external behavior of the product, while emulators - internal behavior.
The simulators are designed to simulate the internal state of the product, while the emulators simulate the external behavior.
Often, there are situations such that the use of emulators / simulators is more practical than testing on real devices. For example, the time comes, and there is not enough time to buy a real device or impossible to achieve in a short period of time. In this case, the emulators are emitted.
In addition, it is impossible to obtain all the mobile device models required for the test (especially when the budget is limited). Emulators help save time and money. Usually, they are free and use them, you have to download and run the emulator.
Emulators are more suitable for web testing because one does not have to deal with the URL of the application developed for launch. And for testers, it is easier to make screenshots of errors found in emulators.
But the main disadvantage of the evidence-based emulator is that emulators can not reproduce battery product problems. In addition, it is impossible to simulate several interrupts, Incoming notifications, messages, calls, etc.
It is quite difficult to mimic the performance capabilities of the product. Usually they are lower than those of the original software. But mobile devices have their own disadvantages.
What are the disadvantages of real devices?
The price of modern mobile devices is really high.
The number of mobile devices available (models and operating system version) is great. It is impossible to have a device of all types and models.
During unit tests, it is difficult to connect the actual devices with the IDE.
Sometimes the USB port that connects the actual device and the machine is not working properly. Therefore, test results will not be correct.
Despite all the advantages and disadvantages, the choice of the actual emulator or device, it must be based on a thorough analysis of the particulars of the product, deadlines, budget and available resources.
To do the mobile test, test office or websites effectively, these methods need to be adjusted for each company and each project. QATestLab is an independent software testing company located in Kiev, Ukraine. QATestLab tests products at each stage of the software development cycle.
Emulators are not real devices. Simply reproduce the main features of the mobile software. Emulators must be installed on a PC or on mobile devices. In addition, specialists can also use virtual device simulators. There are several differences between simulators and emulators.
How emulator based test simulators differ?
Development language. Simulators are created in high-level languages. Emulator - in the language of the assembly of a level of the machine.
Debugging. It can be quite difficult to use for debugging simulators and emulators are more suitable for this purpose.
Replacement of the original software. Software simulators have only partially and emulators can send completely.
The simulators are designed to test the external behavior of the product, while emulators - internal behavior.
The simulators are designed to simulate the internal state of the product, while the emulators simulate the external behavior.
Often, there are situations such that the use of emulators / simulators is more practical than testing on real devices. For example, the time comes, and there is not enough time to buy a real device or impossible to achieve in a short period of time. In this case, the emulators are emitted.
In addition, it is impossible to obtain all the mobile device models required for the test (especially when the budget is limited). Emulators help save time and money. Usually, they are free and use them, you have to download and run the emulator.
Emulators are more suitable for web testing because one does not have to deal with the URL of the application developed for launch. And for testers, it is easier to make screenshots of errors found in emulators.
But the main disadvantage of the evidence-based emulator is that emulators can not reproduce battery product problems. In addition, it is impossible to simulate several interrupts, Incoming notifications, messages, calls, etc.
It is quite difficult to mimic the performance capabilities of the product. Usually they are lower than those of the original software. But mobile devices have their own disadvantages.
What are the disadvantages of real devices?
The price of modern mobile devices is really high.
The number of mobile devices available (models and operating system version) is great. It is impossible to have a device of all types and models.
During unit tests, it is difficult to connect the actual devices with the IDE.
Sometimes the USB port that connects the actual device and the machine is not working properly. Therefore, test results will not be correct.
Despite all the advantages and disadvantages, the choice of the actual emulator or device, it must be based on a thorough analysis of the particulars of the product, deadlines, budget and available resources.
To do the mobile test, test office or websites effectively, these methods need to be adjusted for each company and each project. QATestLab is an independent software testing company located in Kiev, Ukraine. QATestLab tests products at each stage of the software development cycle.
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