unit-test-Backend-API-Schemas

• Clear Description: This MR adds unit tests for Pydantic schema validation to ensure invalid data is rejected at the schema layer before reaching business logic.

What’s Covered

• User, Patient, Doctor, Consultation, Medicine, and Medical Camp schemas
• Field constraints, regex checks, enums, and type validation
• Custom validator behavior (where applicable)
• Positive and negative test cases for all models

Testing Approach

• Separate test files per schema module
• Assert valid payloads pass without errors
• Assert invalid payloads raise pydantic.ValidationError

This improves data integrity and strengthens the overall reliability of the API.

• Checklist: A checklist of completed tasks, such as:
  • Code follows project API guidelines (if applicable).
  • Tests are included and passing.
  • Documentation is updated (if applicable).
  • Code adheres to project coding standards.
• Related Issue(s): Link to any relevant issues using Closes #22 .