No unit testing exists for any of the helper functions

[Aypak]

Observed behavior

No unit tests exist for any of the functions contained in the scripts. This implies that testing needs to be done manually whenever a change is made, which can be both time consuming and prone to human error.

Suggested Solution

The functions in all of these scripts perform CRUD operations on the following models:

• Facility
• FacilityUser
• Lesson
• Exam (Quiz)
• ContentNode
• ChannelMetaData

Using pytest and associated libraries, created unit tests for each of the functions in helpers.py.
The tests should reside in the test directory and must be runnable using pytest.
The tests should follow the style of test_facilityuser. This means that they are grouped into separate files and classes depending which type of model is being tested.