Some QA specialists are absolutely sure that if the developers of software apps that run Microsoft Windows get a repetitive stress injury, it is not caused by writing the source code, but by repeatedly pressing the same key combinations when testing applications. After pressing the combination Alt + F, O for 5 thousand times, you can find your hands hardened more, than the armature filled with concrete. If you do not have a tool that provides access to various functions of your applications, it is usually necessary to follow a certain scenario to ensure that unit test coverage is sufficient. Testing programs in a manual manner with the help of scripts is a boring process that instantly annoys, greatly increasing the likelihood of human errors.
Do you know how to install a new software product on your PC? Can you guarantee that the setup will be successful?? Clever people use installation testing services to be sure that all installed functions or features work properly on their devices.
Automated unit testing allows you to reduce the amount of work done with the keyboard input and allows you to quickly check the status of the code. It is very unfortunate but there is no analogue of the Recorder program from 30 and 31 in 32-bit versions of Windows. If you did not work with older versions of Windows, then this needs to be explained to you as follows: Recorder recorded your manipulations with the mouse and keyboard to a file that could later be played back by simulating physical mouse and keyboard events. Currently, there are some third-party programs available that automate the application and provide other possibilities (for example, comparison of screens with checking of each pixel and maintenance of a test database), but it is still necessary to develop something more simple and friendly to programmers. So the idea of Tester was born.
Having conceived the test automation tool, the creator a little bit pondered what kind of features he would like to receive. First he decided to develop a utility like Recorder. At the time when 30-bit Windows were extremely popular, the man had a whole set of REC files to run his tests. However, Recorder had a big drawback: it did not support conditional tests. If during the test the person’s application reported an error, Recorder simply continued to work, playing back the recorded keyboard and mouse shortcuts and completely ignoring the strains of his program. Once, thanks to Recorder, he managed to destroy half of the OS: he tested his own WINFILE.EXE extension, and when it encountered an error, Recorder lost the file deletion command for the entire System directory. The creator’s new test automation tool was bound to support the if … then … else construction.