lonely-integer.test.ts

import { Input, lonelyInteger, Output } from "../lonely-integer";

type Cases = [Input, Output][];

describe("Lonely Integer", () => {
  const cases: Cases = [
    [[1], 1],
    [[1, 1, 2], 2],
    [[0, 0, 1, 2, 1], 2],
    [[4, 9, 95, 93, 57, 4, 57, 93, 9], 95],
    [
      [
        34, 95, 34, 64, 45, 95, 16, 80, 80, 75, 3, 25, 75, 25, 31, 3, 64, 16,
        31,
      ],
      45,
    ],
    [
      [
        15, 60, 74, 1, 94, 93, 28, 48, 70, 98, 45, 94, 42, 45, 48, 1, 72, 9, 24,
        93, 41, 70, 60, 28, 11, 20, 72, 35, 11, 98, 31, 74, 31, 41, 9, 42, 20,
        35, 24,
      ],
      15,
    ],
    [
      [
        18, 49, 15, 30, 56, 20, 49, 67, 82, 69, 84, 63, 93, 87, 66, 17, 38, 32,
        17, 32, 94, 66, 67, 63, 48, 64, 84, 82, 87, 18, 79, 64, 79, 15, 71, 94,
        59, 5, 22, 59, 4, 98, 81, 4, 98, 73, 69, 88, 30, 81, 48, 56, 71, 20, 93,
        22, 73, 5, 88,
      ],
      38,
    ],
    [
      [
        59, 88, 14, 8, 85, 1, 94, 74, 57, 96, 39, 2, 47, 43, 35, 17, 53, 52, 92,
        31, 99, 48, 94, 30, 92, 60, 32, 45, 88, 13, 39, 50, 22, 65, 89, 46, 65,
        76, 57, 67, 99, 35, 76, 46, 85, 82, 45, 62, 53, 80, 74, 22, 31, 52, 82,
        13, 41, 96, 2, 1, 80, 62, 4, 20, 50, 89, 59, 67, 60, 8, 41, 14, 47, 48,
        17, 4, 43, 30, 32,
      ],
      20,
    ],
  ];

  test.each(cases)(
    "for given array of integers %j output should be %d",
    (firstArg, expectedResult) => {
      const result = lonelyInteger(firstArg);
      expect(result).toEqual(expectedResult);
    }
  );
});