Performed functional and non-functional testing of the final version of libdomain. Functional testing includes system-unit testing (checking individual modules of the source program code for compliance with the requirements and documentation) and integration testing (checking the joint operation of software modules). Non-functional testing consisted of checking documentation. 

   Based on the results of the work, a testing protocol was drawn up. The defects and shortcomings found are minor and will be eliminated in future updates.