day3.ts

/*Solution*/
type GiftWrapper<T,K,U> = {
    present: T;
    from: K;
    to: U;
  }
  
/*Tests*/
import { Expect, Equal } from 'type-testing';

type test_SantaToTrash_actual = GiftWrapper<'Car', 'Santa', 'Trash'>;

type test_SantaToTrash_expected = { present: 'Car', from: 'Santa', to: 'Trash' };
type test_SantaToTrash = Expect<Equal<
  test_SantaToTrash_actual,
  test_SantaToTrash_expected
>>;

type test_TrashToPrime_actual = GiftWrapper<'vscode', 'Trash', 'Prime'>;

type test_TrashToPrime_expected = { present: 'vscode', from: 'Trash', to: 'Prime' };
type test_TrashToPrime = Expect<Equal<
  test_TrashToPrime_actual,
  test_TrashToPrime_expected
>>;

type test_DanToEvan_actual = GiftWrapper<'javascript', 'Dan', 'Evan'>;

type test_DanToEvan_expected = { present: 'javascript', from: 'Dan', to: 'Evan' };
type test_DanToEvan = Expect<Equal<
  test_DanToEvan_actual,
  test_DanToEvan_expected
>>;