====test====
When I send a request to an operation
And this operation returns a text/html string
Then I should get back the response as a string
====spec====
openapi: "3.0.1"
paths:
  /:
    get:
      responses:
        200:
          content:
            text/html:
              schema:
                type: string
                example: pong
====server====
mock -p 4010 ${document}
====command====
curl -i http://localhost:4010/ -H 'accept: text/html'
====expect====
HTTP/1.1 200 OK
content-type: text/html

pong