Simple ULID implementation for deno.

Example

See ulid_test.ts.

import { Generator, encode_base32 } from "./mod.ts";

//example output: 01GCJ4PN0TW96EHC5GMEPMYHTV
Deno.test("generator test", () => {
  const gen = new Generator();
  const ulid = gen.ulid_encoded();
  assertEquals(ulid?.length, 26);
  console.log(gen.ulid_encoded());
});

//example output: 00000001100000110010010001001011010101000001111101010111000101110001011111001111000000110000001101011010001100100101000011101110
Deno.test("generator(binary) test", () => {
  const gen = new Generator();
  const ulid = gen.ulid();
  assertEquals(ulid?.length, 128);
  console.log(gen.ulid());
});

//example output:
//01GCJ4PN11ATG9JGRRA6QVYQJD
//01GCJ4PN11ATG9JGRRA6QVYQJE
Deno.test("monotonicity test", () => {
  const gen = new Generator();

  //If the same millisecond is detected, this expects to generate 2 ulids that has the same timestamp, and the random part is incremented by 1 bit.
  console.log(gen.ulid_encoded());
  console.log(gen.ulid_encoded());
});

//example output:
//01GCJ4PN146T2KF4WKBHH59SF6
//01GCJ4PN143Q0JDGEHPSX567DA
Deno.test("another generator test", () => {
  const gen1 = new Generator();
  console.log(gen1.ulid_encoded());
  //should generate a whole new ulid.
  const gen2 = new Generator();
  console.log(gen2.ulid_encoded());
});

Deno.test("encoding test", () => {
  const binary =
    "00000001100000110010010000100111111110010000111000000101001111111001101000010011101101110111000010111010101010010011110110101110";
  assertEquals(encode_base32(binary), "01GCJ2FY8E0MZSM4XQE2XAJFDE");
});