# -*- coding: utf-8 -*-
"""最小验证：wait_for_function(expression, arg=...) 在 file:// 页面是否抛异常。"""
import io
import sys
import traceback

sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8')
from playwright.sync_api import sync_playwright

DEMO = 'file:///D:/code/crm-backend-matt/.scratch/opportunity-e2e/demo/index.html'

with sync_playwright() as p:
    browser = p.chromium.launch(headless=True)
    page = browser.new_page()
    page.goto(DEMO)
    page.wait_for_timeout(1500)

    # 1) 不带 arg
    try:
        page.wait_for_function("() => document.getElementById('subBox') !== null", timeout=2000)
        print('no-arg: OK')
    except Exception as e:
        print('no-arg FAIL:', type(e).__name__, str(e)[:120])

    # 2) 带 arg（与 wait_sub_has 相同形态）
    try:
        page.wait_for_function("text => document.getElementById('subBox').textContent.includes(text)",
                              arg='xxx-不存在', timeout=2000)
        print('with-arg: OK(不应出现)')
    except Exception as e:
        print('with-arg 异常类型:', type(e).__name__)
        traceback.print_exc(limit=2)

    # 3) arg 为中文
    try:
        page.wait_for_function("text => !document.getElementById('subBox').textContent.includes(text)",
                              arg='中文参数', timeout=2000)
        print('cn-arg not-in: OK')
    except Exception as e:
        print('cn-arg 异常:', type(e).__name__, str(e)[:200])

    browser.close()