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

def test_version():
    assert (ROOT/"VERSION").read_text(encoding="utf-8").strip()=="4.6.15"

def test_frontend_sends_multitask_trace_headers():
    js=(ROOT/"static"/"js"/"app.js").read_text(encoding="utf-8")
    assert 'X-Multitask-Request-ID' in js
    assert 'X-Multitask-Task-ID' in js
    assert 'parallel-child-session' in js

def test_frontend_shows_wall_serial_and_speedup():
    js=(ROOT/"static"/"js"/"app.js").read_text(encoding="utf-8")
    assert 'data-parallel-wall' in js
    assert 'data-parallel-serial' in js
    assert '并行加速约' in js
    assert 'Promise.all(promises)' in js

def test_backend_logs_multitask_start_end():
    chat=(ROOT/"routes"/"chat.py").read_text(encoding="utf-8")
    assert '[MULTITASK] START' in chat
    assert '[MULTITASK] END' in chat
    assert 'duration=%.3fs' in chat
    assert '_observe_multitask_stream' in chat

def test_duplicate_marine_operation_ids_removed():
    ui=(ROOT/"ui_server.py").read_text(encoding="utf-8")
    assert 'name="marine_proxy_root"' in ui
    assert 'name="marine_proxy_suffix"' in ui
    assert 'include_in_schema=False' in ui

def test_head_root_supported():
    ui=(ROOT/"ui_server.py").read_text(encoding="utf-8")
    assert '@app.head("/",include_in_schema=False)' in ui
    assert 'async def home_head' in ui