openapi: 3.0.4
info:
  title: "Swagger Test"
  version: "1.0.0"
servers:
  - url: https://api.example.com/v1
components:
  schemas:
    User:
      type: object
      properties:
        id:
          type: integer
          readOnly: true
          x-primitive-extension: test
          x-primitive-objectExtension:
            prop:
              test: test,
              nested:
                test: test,
                nested:
                  test: test
      x-object-extension: 1
      x-object-objectExtension:
        prop:
          test: test,
          nested:
            test: test,
            nested:
              test: test