[validate-examples] Empty model fails with "Expected type ' ' but found type object"

[mikeharder]

Repro

$ npx oav generate-examples widgets.json; npx oav validate-example widgets.json

If you remove description from PagedWidgetSuite, somehow validate-example doesn't throw an error.

Expected

No errors

Actual

Fails to match empty response in example, with empty model in 200 response in spec

$ npx oav validate-example widgets.json
{
  message: 'Validating "examples" and "x-ms-examples" in  widgets.json:\n',
  level: '\x1B[32minfo\x1B[39m'
}
Error reported:

{
  code: 'INVALID_TYPE',
  message: 'Expected type  but found type object',
  schemaUrl: 'widgets.json',
  exampleUrl: 'example.json',
  schemaPosition: { line: 22, column: 22 },
  schemaJsonPath: undefined,
  examplePosition: { line: 10, column: 16 },
  exampleJsonPath: '$response.200/body',
  severity: 0,
  source: 'response',
  operationId: 'Widgets_ListWidgets',
  level: '\x1B[31merror\x1B[39m'
}

Files

widgets.json

{
  "swagger": "2.0",
  "paths": {
    "/widgets": {
      "get": {
        "operationId": "Widgets_ListWidgets",
        "description": "List Widget resources",
        "parameters": [],
        "responses": {
          "200": {
            "description": "The request has succeeded.",
            "schema": {
              "$ref": "#/definitions/PagedWidgetSuite"
            }
          }
        }
      }
    },
    "/widgets2": {
      "get": {
        "operationId": "Widgets_ListWidgets2",
        "description": "List Widget resources",
        "parameters": [],
        "responses": {
          "200": {
            "description": "The request has succeeded.",
            "schema": {
              "$ref": "#/definitions/PagedWidgetSuite2"
            }
          }
        }
      }
    }
  },
  "definitions": {
    "PagedWidgetSuite": {
      "type": "object",
      "description": "Paged collection of WidgetSuite items"
    },
    "PagedWidgetSuite2": {
      "type": "object",
      "description": "Paged collection of WidgetSuite items",
      "properties": {
        "nextLink": {
          "type": "string",
          "format": "uri",
          "description": "The link to the next page of items"
        }
      },
      "required": [
        "nextLink"
      ]
    }
  }
}