import { describe, it, expect } from "vitest";
import { compress } from "./compress.ts";

describe("compress", () => {

  it(`["a", "a", "b", "b", "c", "c", "c"] => a2b2c3 => 6`, () => {
    const arr = ["a", "a", "b", "b", "c", "c", "c"];
    expect(compress(arr)).toBe(6);
  });

  it(`["a"] => a => 1`, () => {
    const arr = ["a"];
    expect(compress(arr)).toBe(1);
  });

  it(`["a","b","b","b","b","b","b","b","b","b","b","b","b"] => ab12 => 4`, () => {
    const arr = ["a", "b", "b", "b", "b", "b", "b", "b", "b", "b", "b", "b", "b"];
    expect(compress(arr)).toBe(4);
  });

  it(`["a","a","a","b","b","a","a"] => a3b2a2 => 6`, () => {
    const arr = ["a", "a", "a", "b", "b", "a", "a"];
    expect(compress(arr)).toBe(6);
  });

  it(`["a","a","a","a","a","b"] => a5b => 3`, () => {
    const arr = ["a", "a", "a", "a", "a", "b"];
    expect(compress(arr)).toBe(3);
  });

  it(`["a","a","a","b","b","b","c","c","c"] => a3b3c3 => 6`, () => {
    const arr = ["a", "a", "a", "b", "b", "b", "c", "c", "c"];
    expect(compress(arr)).toBe(6);
  });

});