from pathlib import Path
ROOT=Path(__file__).resolve().parents[1]

def test_version():
    assert (ROOT/"VERSION").read_text(encoding="utf-8").strip()=="4.6.17"

def test_project_package_download_is_capability_url():
    py=(ROOT/"routes/project_package.py").read_text(encoding="utf-8")
    block=py[py.index("async def download_project_package"):py.index("async def get_project_package_history")]
    assert "resolve_request_user" not in block
    assert "PROJECT_PACKAGE_TOKENS.get(token)" in block
    assert "PROJECT_PACKAGE_TTL_SECONDS" in block
    assert '"Cache-Control":"private, no-store, max-age=0"' in block

def test_same_origin_download_probes_before_native_save():
    js=(ROOT/"static/js/app.js").read_text(encoding="utf-8")
    assert '"Range":"bytes=0-0"' in js
    assert "正在验证下载文件" in js
    assert "triggerBrowserSave(sourceUrl,filename)" in js

def test_project_download_button_explains_browser_handoff():
    js=(ROOT/"static/js/project-package.js").read_text(encoding="utf-8")
    assert "正在交给浏览器" in js
    assert "已交给浏览器下载" in js