Accept empty array.

[yasuzuki]

Current Behaviour

When generating a schema with a response with an empty array, the item property is marked as nullable.

responses:
  '200':
    content:
      application/json:
        schema:
          type: array
          items:
            type: object
            properties:
              id:
                type: integer
              ...
            nullable: true

Desired Behaviour

Should generate schema of typed as an array with the unknown property rather than nullable for the array itself.
Unknown property is expressed as properties: {} based on OAS 3.0.

reference: https://swagger.io/docs/specification/data-models/data-types/#array

When combined with other RSpec examples has a response with an array filled with any items, then generated schema should be merged correctly.

Thank you for this beautiful gem!

[exoego]

Looks like this test case passes on the current master branch without the changes on this PR.
I am afraid that the changes are not covered or probably I do not get the intention of this test.

[exoego]

I think it would be clearer if the behavior change is covered in the fixture files (JSON/YAML).

          items:
            type: object
            properties:
              id:
                type: integer
              ...
            nullable: true

===>


          items:
            type: object
            properties:
              id:
                type: integer
              ...

[exoego]

@yasuzuki Thanks for proposing this change.
I've tweaked tests in #70 and merged.
Closing as resolved.

[yasuzuki]

@exoego Thank you for taking over our work!