[BUG] error and description are missing in some errors with attr update - PUT/v2/entities/<id>/attrs/<attr_name>

[iariasleon]

With the attribute update request - PUT/v2/entities//attrs/<attr_name> . Some errors do not show the error field and the description field.

If entity does not exists

Request:

          PUT http://<host>:<port>/v2/entities/xcvxcvxc/attrs/timestamp
           Fiware-Service: happy_path
           Fiware-ServicePath: /test
           Content-Type: application/json 
           {"value": 23}

Response:

         404 Not Found 
         Content-Length: 0 

Expected:

Status: 404 Not Found

{
    "error": "NoFound",
    "description": "No context element found"
}

If entity exists but attribute does not exists

Create Request:

          POST http://<host>:<port>/v2/entities
           Fiware-Service: happy_path
           Fiware-ServicePath: /test
           Content-Type: application/json 
           {"id": "room_2", "temperature","value": 47}

Update Request:

          PUT http://<host>:<port>/v2/entities/room_2/attrs/dfgdfgdf
           Fiware-Service: happy_path
           Fiware-ServicePath: /test
           Content-Type: application/json 
           {"value": 23}

Response:

         472 Unknown 
         Content-Length: 0 

Expected:

Status: 404 Not Found

{
    "error": "NoFound",
    "description": "No context element found"
}

[fgalan]

According to PR #2298 (which contains a .test) this issues seems to be fixed. Please @iariasleon have a look and close in that case.

[iariasleon]

LGTM

http code: 404 - Not Found
headers:
   date: Fri, 17 Jun 2016 11:42:41 GMT
   fiware-correlator: 993c3012-3480-11e6-a18c-005056a20feb
   connection: Keep-Alive
   content-type: application/json
   content-length: 61
payload: {"error":"NotFound","description":"No context element found"}