Unit Testing

• Goal of unit testing is to identify as many defects as possible in early stages
• Unit Testing: We test a unit of code with all possibilities
• Unit Tests are supposed to be executed after every change by any member of the team to the code.

Unit Testing Frameworks

• Python Standard library has a unittest module
• Popular framework: pytest which is an external package.
  • Setup
• Metric: Code Coverage

Lets build a application which is library application

• Create a new folder
• activate virtual environment
• Install pytest packages

pip install pytest pytest-cov

• create a requirements.txt file
• configure testing in vscode as discussed in the classs
• Exercise: Write unit tests for inventory (json, yaml)