import { fromUtf8 } from "./fromUtf8";

const utf8StringsToByteArrays: Record<string, Uint8Array> = {
  ABC: new Uint8Array(["A".charCodeAt(0), "B".charCodeAt(0), "C".charCodeAt(0)]),
  "🐎👱❤": new Uint8Array([240, 159, 144, 142, 240, 159, 145, 177, 226, 157, 164]),
  "☃💩": new Uint8Array([226, 152, 131, 240, 159, 146, 169]),
  "The rain in Spain falls mainly on the plain.": new Uint8Array([
    84,
    104,
    101,
    32,
    114,
    97,
    105,
    110,
    32,
    105,
    110,
    32,
    83,
    112,
    97,
    105,
    110,
    32,
    102,
    97,
    108,
    108,
    115,
    32,
    109,
    97,
    105,
    110,
    108,
    121,
    32,
    111,
    110,
    32,
    116,
    104,
    101,
    32,
    112,
    108,
    97,
    105,
    110,
    46,
  ]),
  "دست‌نوشته‌ها نمی‌سوزند": new Uint8Array([
    216,
    175,
    216,
    179,
    216,
    170,
    226,
    128,
    140,
    217,
    134,
    217,
    136,
    216,
    180,
    216,
    170,
    217,
    135,
    226,
    128,
    140,
    217,
    135,
    216,
    167,
    32,
    217,
    134,
    217,
    133,
    219,
    140,
    226,
    128,
    140,
    216,
    179,
    217,
    136,
    216,
    178,
    217,
    134,
    216,
    175,
  ]),
  "Рукописи не горят": new Uint8Array([
    208,
    160,
    209,
    131,
    208,
    186,
    208,
    190,
    208,
    191,
    208,
    184,
    209,
    129,
    208,
    184,
    32,
    208,
    189,
    208,
    181,
    32,
    208,
    179,
    208,
    190,
    209,
    128,
    209,
    143,
    209,
    130,
  ]),
};

describe("fromUtf8", () => {
  for (const string of Object.keys(utf8StringsToByteArrays)) {
    it(`should UTF-8 decode "${string}" to the correct value`, () => {
      expect(fromUtf8(string)).toEqual(utf8StringsToByteArrays[string]);
    });
  }

  it("should throw when given a number", () => {
    expect(() => fromUtf8(255 as any)).toThrow();
  });
});