{
  "$schema": "../../test-schema.json",
  "registry": {
    "http://example.com/": {
      "additionalProperties": {
        "definitions": {
          "$id": { "type": "string" },
          "foo": { "bar": "baz" }
        }
      }
    }
  },
  "tests": [
    {
      "ref": "http://example.com/#/additionalProperties/definitions/foo",
      "target": { "bar": "baz" }
    }
  ]
}