schema:
  version: 1
  type: array
  uniqueItems: true
  items:
    properties:
      - foo:
         type: string
      - bar:
         type: string
tests:
  - valid: false
    description: Must be invalid if at least two items equal
    data:
      - foo: fooz
        bar: barz
      - bar: barz
        foo: fooz
  - valid: true
    description: Must be valid if all items are unique
    data:
      - foo: foo
        bar: bar1
      - bar: bar2
        foo: foo