Software testing helps in verifying the robustness and accuracy of the developed software program. There are two broad categories of software testing. They are Manual Testing and Automation.
Manual includes the software without the use of any software or written scripts. The different stages in manual include unit, system, integration, etc. Automatedis about using the script to test the developed software. Automation is widely used to test the application in the external environment.
is also classified as Functional and Non-Functional. Functional helps to ensure that it meets all the specification of the developed software. Non-Functional is related to software performance issues like load, stress, etc.
Black Box testing:
The meaning of Black is something which is dark or hidden. It is about testing the applications without having any knowledge of the interior. In this testing, the tester gives input and observes the output without having any idea of how the data is processed. The primary benefit of this testing is that you do not need to share the code. Designing the test scenario is difficult. However, there is one more benefit of this testing that the testing can be done even by semi-skilled testers.
White Box Testing:
In the White Box Testing, the tester is familiar with the internal structure of the software. He needs to do detail investigation of the structure of the code. The tester works on the internal code of the program and tries to find out the code not behaving appropriately. It helps in finding the suitable date for the test code. The tester finds the appropriate data after going through the logic. It requires skilled testers with proper knowledge. The testing team needs to maintain specialized tools like code analyzers, debugging tools.
Grey Box Testing
Grey Box Testing is the process of the testing an application with the limited knowledge of the internal working of the developed software. The difference between black box and Grey Box is that tester has access to documents and database of the tested applications. This helps in selecting the right stream of data. This type of test is done from the user perspective. The test depends upon functional specifications.
Once the software is developed, it is distributed among few customers to know about error or glitches that the software may face during working in the real-time environment. It is cost effective and improves product quality. That’s why it is also called external user acceptance is done by the real users of the software working in the real environment. It doesn’t require high skilled testers and lab simulation.