====test====
When I send a request to an operation
And the operation has a required path segment
And in the request I sent that segment is missing
I should get a 404 response back
And the payload of the response should be in application/problem+json content-type
====spec====
swagger: '2.0'
paths:
  /pet/a/{b}:
    get:
      parameters:
        - in: path
          name: b
          required: true
          type: number
      responses:
        '200':
          description: ok
          schema:
            type: string
====server====
mock -p 4010 ${document}
====command====
curl -sIXGET http://127.0.0.1:4010/pet/a
====expect====
HTTP/1.1 404 Not Found
content-type: application/problem+json