Verify a field is not present?

[hjohn]

I'm trying to check if a field is not present, but none of these work:

 JsonAssertion.assertThat("{}").field("targetId").isEmpty();
 JsonAssertion.assertThat("{}").field("targetId").isNull();

They just result in:

 com.jayway.jsonpath.PathNotFoundException: No results for path: $['targetId']

Is there a way?

[marcingrzejszczak]

You can't test such things with JSON path. We could do it via code, however we wanted to maintain feature parity with JSON Path as such. Pull requests are welcome though