- description: Passing null value for nullable type
  url: /v1/graphql
  status: 200
  response:
    data:
      author: []
  query:
    variables:
      limit: null
    query: |
      query author($limit: Int) {
        author(limit: $limit) {
          id
          name
        }
      }

- description: Passing null value for non-nullable type with default value
  url: /v1/graphql
  status: 200
  response:
    data:
      author: []
  query:
    variables:
      limit: null
    query: |
      query author($limit: Int! = 1) {
        author(limit: $limit) {
          id
          name
        }
      }

- description: Passing null value for non nullable type
  url: /v1/graphql
  status: 200
  response:
    errors:
    - extensions:
        path: $.selectionSet.update_author.args.where.id._eq
        code: validation-failed
      message: unexpected null value for type "Int"
  query:
    variables:
      author_id: null
    query: |
      mutation update_author($author_id: Int!) {
        update_author(where: {id: {_eq: $author_id}}, _set: {name: ""}) {
          returning {
            id
            name
          }
        }
      }