Validating nested items in array elements types

[dawidgdanski]

Hey,

I encountered one problem I haven't found solution for when using the openapi-core:

I developed the schema with an array property:

...
errors:
   type: array
          items:
            $ref: '#/components/schemas/ErrorReference'
...

I wrote the tests to verify that the errors array does contain the ErrorReference objects by comparing examplary dictionary against the schema I defined using registered schemas accessible in Spec.components.schemas.

When adding nested items entry under the existing items:

...
errors:
   type: array
          items:
               items:
                  $ref: '#/components/schemas/ErrorReference'
...

then what I expected was that the upper-level items would be inferred with the array type, the lower-level items with ErrorReference type (so that we would have the array of arrays of ErrorReferences) and the validation would fail due to the incorrect type found in while validating examplary object dictionary against the schema.

The tests still pass and regardless of how many nested items entries are added.

Is it a bug/missing functionality in the validation or am I not using the library correctly to validate nested arrays types?

Many thanks for the response.

[p1c2u]

@dawidgdanski thank you for the report.
It's missing functionality which will be added with new validator.