This project demonstrates a full Test-Driven Development (TDD) and Continuous Integration/Continuous Deployment (CI/CD) pipeline with a simple API. The API has the following characteristics:

• GET /tasks: Retrieve a list of all tasks.
• GET /tasks/<task_id>: Retrieve a specific task by its unique identifier.
• POST /tasks: Create a new task.
• PUT /tasks/<task_id>: Update an existing task by its unique identifier.
• DELETE /tasks/<task_id>: Delete a task by its unique identifier.

The API has a single data model, Task, with the following fields:

• id (integer): A unique identifier for the task.
• title (string): A short description of the task.
• description (string): A detailed description of the task (optional).
• due_date (datetime): The date and time by which the task must be completed (optional).
• completed (boolean): Whether the task has been completed or not. Defaults to False.

The API implements the following business logic:

1. Create a task : Validate the input, generate a unique identifier, and store the task.
2. List tasks : Retrieve all tasks stored in the system.
3. Get a task : Retrieve a task by its unique identifier.
4. Update a task : Validate the input, update the task with new data, and store the updated task.
5. Delete a task : Remove a task by its unique identifier.

You can run the API locally by installing the required dependencies and running the application:

pip install -r requirements.txt
python app.py

To run the tests, use the following command:

pytest tests