Unit Testing of flask api using pytest

• First lets try to make our application i.e. Catalog API testable
• For this we will be using existing environmental variable FLASK_ENV Refer Here
• Install pytest pip install pytest and pip freeze > requirements.txt
• To test the flask application with pytest or any other unit tests Refer Here
• Refer Here for the changes made to create a first test which calls the api resource to create a new catalog type and verifies the response and count of catalog types before and after making post call.