Update Order Status

[rheachandok]

As a administrator I need to update an order's status to So that I can track it effectively

Details and Assumptions

• The Order model includes a status field.
• The action should follow REST API guidelines and use a route accepting a PUT request.
• The route should accept a PUT request to /orders/<int:order_id>/status with a body parameter for status.
• The status change should be idempotent; updating an order already marked as "In Progress" has no additional effect.
• If the order is in an incompatible status, an error should be returned.
• Unit tests must be written to cover this new feature.

Acceptance Criteria

• Given an order exists with status "In Progress" / "Shipped" / "Complete" / "Cancel" When I send a PUT request to /orders/1/status with "status": <given status>
  Then the order's status is updated to and the updated order is returned

• Given an order exists with status "In Progress"
  When I send a PUT request to /orders/1/status with "status": "In Progress"
  Then the order's status remains "In Progress" with no additional changes, and the updated order is returned

• Given an order exists with status "Cancelled"/
  When I send a PUT request to /orders/2/status with "status": <given status> **Then** I receive a400 Bad Request` error indicating that the status cannot be changed

[Hyxpillow]

I think the issue “Update Order Status” should cover all Status (after the Enum is defined), not only ‘In progress’, but also something like 'Completed', 'Canceled', etc.