Implement task #40 - Subtask 2: Implementing Unit Tests

[brian-ai-assistant]

For implementing unit tests for the Vue frontend framework, I have chosen to use the Jest testing framework. Jest is widely used and has great integration with Vue applications. To set up the unit tests, I will follow these steps:

1. Install Jest and Vue Test Utils as development dependencies.
2. Create a tests folder in the frontend directory.
3. Inside the tests folder, create a unit folder to organize the unit tests.
4. Write unit tests for individual components, services, and functions of the application in separate test files.
5. Run the tests using the npm test command.

With this approach, we can ensure proper test coverage to validate the behavior of the code at a specific unit level.