Create automated tests for customvariables.py and globalvariablesmanager.py

[leo-viana]

Goal

Create tests for customvariables and globalvariablesmanager

Description

Automated tests allows us to assess the functionality, reliability, and performance of pythonrest. They would assist us in detecting bugs more easily when creating new features for our API.

Classes to be changed

All of the test classes that will be created on this task must be on this folder The tests should follow a pattern of:

• Name: If, for example, the test class will test the functions of a class named SQLService.py, the test name should be SQLServiceTests.py
• Folder Structure: The test classes should follow a structure similar to the Project structure, for example the ExceptionHandlerController.py class is located on the path src/a_Presentation/b_Custom of a generated API, so the test class should be on the path src/g_Tests/a_Presentation/b_Custom of a generated API.Create automated tests for