Challenge 04 -- Custom Unit Testing Framework

The Challenge

Implement your own basic unit testing framework from scratch, mimicking some functionality of unittest or pytest. Then, use it to test your CRUD application.
This will demonstrate your deep understanding of testing concepts and building tools from the ground up.

The UML Diagram

The Solution

Basic idea

have a general TestSuite that holds a list of method-objects of a child-class of TestCase-class to be tested
TestCase does an initialize and finalize at beginning and end to setup and release eventually relevant database configurations etc for each test individually (to thoroughly test whole setup)
TestTravelCrud class holds test_ prefixed versions of the original functions from TravelCrud class to test the behaviour

Tricky points

How to access the used queries after the cursor is deleted and memory reallocated given the use of the context manager for consistent transactioning?
- implemented a history mode into the context wrapper @BasicCRUD.db_operation

Note

Only implemented the test for 1 of the 7 travelCRUD classes to demonstrate the approach.

Files