import { TypeKind } from 'graphql';
import getFinalType from './getFinalType';

describe('getFinalType', () => {
  it('returns the correct type for SCALAR types', () => {
    expect(getFinalType({ name: 'foo', kind: TypeKind.SCALAR })).toEqual({
      name: 'foo',
      kind: TypeKind.SCALAR,
    });
  });
  it('returns the correct type for NON_NULL types', () => {
    expect(
      getFinalType({
        kind: TypeKind.NON_NULL,
        ofType: { name: 'foo', kind: TypeKind.SCALAR },
      })
    ).toEqual({
      name: 'foo',
      kind: TypeKind.SCALAR,
    });
  });
  it('returns the correct type for LIST types', () => {
    expect(
      getFinalType({
        kind: TypeKind.LIST,
        ofType: { name: 'foo', kind: TypeKind.SCALAR },
      })
    ).toEqual({
      name: 'foo',
      kind: TypeKind.SCALAR,
    });
  });
  it('returns the correct type for NON_NULL LIST types', () => {
    expect(
      getFinalType({
        kind: TypeKind.NON_NULL,
        ofType: {
          kind: TypeKind.LIST,
          ofType: { name: 'foo', kind: TypeKind.SCALAR },
        },
      })
    ).toEqual({ name: 'foo', kind: TypeKind.SCALAR });
  });
});