import { test } from 'node:test';
import assert from 'node:assert/strict';
import { frameFileName, padWidth } from '../../YouleNexus/assets/framework/core/frame-file-name.ts';

test('padWidth: 9帧→1位，12帧→2位，100帧→3位', () => {
  assert.equal(padWidth(9), 1);
  assert.equal(padWidth(12), 2);
  assert.equal(padWidth(100), 3);
  assert.equal(padWidth(1), 1);
});

test('frameFileName: 1基+补零，字典序 = 帧序', () => {
  assert.equal(frameFileName('atlas-login/00014', 1, 12), 'atlas-login/00014_01.png');
  assert.equal(frameFileName('atlas-login/00014', 10, 12), 'atlas-login/00014_10.png');
  const names = [frameFileName('atlas-login/00014', 2, 12), frameFileName('atlas-login/00014', 10, 12)];
  assert.deepEqual([...names].sort(), ['atlas-login/00014_02.png', 'atlas-login/00014_10.png']);
});

test('frameFileName: FrameIndex=0 按 1 处理（旧引擎 2 个对象如此）', () => {
  assert.equal(frameFileName('atlas-login/00014', 0, 12), 'atlas-login/00014_01.png');
});

test('frameFileName: 单帧图(prefix 不带下划线)直接拼接 .png', () => {
  assert.equal(frameFileName('atlas-login/00019', 1, 1), 'atlas-login/00019.png');
});