index.test.ts

import { expect, test } from "bun:test";
import { muddle } from ".";

function zero(a: Uint8Array): void {
  for (const i of a) a[i] = 0
}

function increment(a: Uint8Array): void {
  for (let i = 0; i < a.length; i++) a.set([i], i)
}

test("zero", () => {
  expect(muddle("Fox 4", { getRandomValues: zero }))
    .toBe('Aaa 0')
})

test("increment", () => {
  expect(muddle("Fox 46 Run", { getRandomValues: increment }))
    .toBe('Abc 34 Fgh')
})

test("Hex remains as hex", () => {
  expect(muddle("aaaaaaaa-zzzzzzzz", { getRandomValues: increment }))
    .toBe('abcdefab-ijklmnop')
})

test("increment, many letters, hex insensitive", () => {
  expect(muddle("aaaaaaaAAAAAAaaaaaaaaaaaaaaaAAAAAAaaaaaaaaaaaaaaaaaaaaa", { getRandomValues: increment, hexLetters: 'insensitive' }))
    .toBe('abcdefgHIJKLMnopqrstuvwxyzabCDEFGHijklmnopqrstuvwxyzabc')
})

test("boundaries", () => {
  expect(muddle("az, AZ, 09", { getRandomValues: zero }))
    .toBe('aa, AA, 00')
})

test("zero, case insensitive", () => {
  expect(muddle("[Fox 4]", { getRandomValues: zero, letterCase: 'insensitive' }))
    .toBe('[AAA 0]')
})

test("increment, case insensitive, hex insensitive", () => {
  expect(muddle("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", { getRandomValues: increment, letterCase: 'insensitive', hexLetters: 'insensitive' }))
    .toBe('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABC')
})