[
  { "method"   : "put"
  , "path"     : "/document_head"
  , "status"   : 201
  , "response" : "{ \"ok\": true }"
  }
, { "method"   : "put"
  , "status"   : 201
  , "path"     : "/document_head/foobaz"
  , "body"     : "{\"foo\":\"baz\"}"
  , "response" : "{\"ok\":true,\"id\":\"foobaz\",\"rev\":\"1-611488\"}"
  }
, { "path"     : "/document_head/foobaz"
  , "method"   : "head"
  , "headers"  : { "statusCode" : 200 }
  }
, { "method"   : "delete"
  , "path"     : "/document_head"
  , "response" : "{ \"ok\": true }"
  }
]