import { expect, test } from "bun:test";
import { encodeDevicesql } from "../src/pdb/strings.ts";

test("empty encodes to 0x03", () => {
    expect(Array.from(encodeDevicesql(""))).toEqual([0x03]);
});

test("short ascii uses short form", () => {
    const out = encodeDevicesql("ABC");
    // length = 3+1 = 4; (4<<1)|1 = 9
    expect(out[0]).toBe(9);
    expect(Array.from(out.slice(1))).toEqual([0x41, 0x42, 0x43]);
});

test("non-ascii uses utf-16 form", () => {
    const out = encodeDevicesql("é");
    expect(out[0]).toBe(0x90);
    // total_length = utf16 bytes (2) + 4 = 6
    expect(out[1]).toBe(6);
    expect(out[2]).toBe(0);
    expect(out[3]).toBe(0);
    expect(out[4]).toBe(0xe9);
    expect(out[5]).toBe(0x00);
});