Can u tell me how to write test cases and what criteria should follow as a test engineer?

Test cases are made to ensure the software you have created doesnt have any errors or loopholes for viruses and hackers to exploit.





There are various ways in which an application may be tested. To start off you could write client specific test cases, i.e. unit testing. Think of yourself to be the end user and test application entering garbage or no data to test if the application is able to work around it.


Your next step would be trying to the use of it simultaneously,i.e load testing. To see if the application can support heavy traffic.