加快门禁：删除测试窗口、释放桩线程并并行运行三个阶段

关闭后未删除的测试窗口让每次主题切换重排全部残留控件，ui_check 每次关窗还要等桩线程 5 秒。Linux 上结论不变，test_ui_smoke 75→64 s、ui_check 52→16 s；Windows 门禁结果见 .scratch/gate-speed/。

apps/studio/tests/conftest.py

@@ -97,6 +97,8 @@ def make_window(qt_app, tmp_path, monkeypatch):
 
     yield _make
 
+    from PySide6.QtCore import QCoreApplication, QEvent
+
     for window in created:
         try:
             window.close()
@@ -104,6 +106,14 @@ def make_window(qt_app, tmp_path, monkeypatch):
             # Reported rather than swallowed: a window that cannot close is a Qt lifetime
             # problem worth seeing, but it must not turn a green test red.
             logging.getLogger(__name__).debug("could not close a test window", exc_info=True)
+        # ``close()`` only hides a window: something in the window keeps it referenced,
+        # so it stayed alive for the rest of the session. Every leaked window's ~600
+        # widgets are then re-polished by each later ``app.setStyleSheet`` — measured on
+        # Linux, one theme switch takes 0.07 s with one window and 0.85 s after ten closed
+        # ones, and three theme tests took 76 s of a 231 s Windows suite. Delete it.
+        window.deleteLater()
+    created.clear()
+    QCoreApplication.sendPostedEvents(None, QEvent.Type.DeferredDelete)
 
 
 @pytest.fixture

apps/studio/tests/test_ui_smoke.py

@@ -1048,7 +1048,9 @@ def test_the_domain_boundary_is_latched_for_the_session(make_window):
         "the previous session's island survived into a new run"
     )
     window._run_timer.stop()
-    window._stop_run(reason="user_stop")
+    # Release the stand-in worker as well: the second run re-armed its hang, and a
+    # window closed on a hanging worker waits out its 5 s join in teardown.
+    _finish(window, stuck)
 
 
 # ------------------------------------------------------------- experiment record

apps/studio/tools/ui_check.py

@@ -414,6 +414,22 @@ DECORATIVE_PAIRS: tuple[tuple[str, tuple[str, ...]], ...] = (
 )
 
 
+def _close_window(window) -> None:
+    """Close a check window, releasing its stand-in worker first.
+
+    A ``_StuckWorker`` hangs on purpose, and the window's shutdown path stops its
+    worker with ``wait=True``, which joins that thread for up to 5 s. Every scene that
+    closed a window on a still-hanging stub paid those 5 s (measured: 7 joins, 35 s of
+    a 52 s run). What those scenes check happens before the close, so the stub is let
+    go here; the shutdown itself is checked separately in a subprocess.
+    """
+    for name in ("_box_worker", "_finger_worker"):
+        worker = getattr(window, name, None)
+        if isinstance(worker, _StuckWorker):
+            worker.release()
+    window.close()
+
+
 def _srgb_channel(value: int) -> float:
     channel = value / 255.0
     if channel <= 0.03928:
@@ -836,7 +852,7 @@ def main() -> int:
                 len(window.prefs.get("splitter_sizes", [])) == 4,
                 "splitter sizes not persisted",
             )
-            window.close()
+            _close_window(window)
             app.processEvents()
 
     section("small window")
@@ -885,7 +901,7 @@ def main() -> int:
                 f" in {type(parent).__name__} {parent.width()}x{parent.height()}"
             )
     check(not oversize, f"widgets overflow their parent: {oversize}")
-    window.close()
+    _close_window(window)
     app.processEvents()
 
     section("top area")
@@ -1072,7 +1088,7 @@ def main() -> int:
             not window.toolbar.settings_expanded(),
             f"{theme}: the settings area could not be collapsed again",
         )
-        window.close()
+        _close_window(window)
         app.processEvents()
 
     # English labels are the widest case ("Start recording", "Sensor config"),
@@ -1096,7 +1112,7 @@ def main() -> int:
         f"the sensor summary is not stated in full: "
         f"{english_window.toolbar.btn_sensor.text()!r}",
     )
-    english_window.close()
+    _close_window(english_window)
     app.processEvents()
     set_locale("zh_CN")
 
@@ -1153,7 +1169,7 @@ def main() -> int:
             f"  reset label at 1280x720, {language}: live {live_width}px, "
             f"replay {replay_width}px (button width {button.width()}px)"
         )
-        measured.close()
+        _close_window(measured)
         app.processEvents()
     set_locale("zh_CN")
 
@@ -1320,7 +1336,7 @@ def main() -> int:
     window.toolbar.set_record_checked(False)
     window._stop_run(reason="user_stop")
     stuck.release()
-    window.close()
+    _close_window(window)
     app.processEvents()
 
     section("stopping a hung connect")
@@ -1388,7 +1404,7 @@ def main() -> int:
         "Esc did not cancel the hung connect immediately",
     )
     check(not window._running, "Esc left the session running")
-    window.close()
+    _close_window(window)
     app.processEvents()
 
     # Let the deliberately-stuck thread finish before the interpreter tears
@@ -1491,7 +1507,7 @@ def main() -> int:
         "the depth colour scale re-fitted per frame instead of staying fixed",
     )
 
-    window.close()
+    _close_window(window)
     app.processEvents()
     stuck.release()
 
@@ -1797,14 +1813,14 @@ def main() -> int:
         "the 2D image area does not follow the output image's aspect ratio: "
         f"{image.width()}x{image.height()}",
     )
-    finger_window.close()
+    _close_window(finger_window)
     app.processEvents()
     check(
         window.toolbar.record_chip.text() == t("record.state_idle"),
         f"the record strip did not fall back to idle: "
         f"{window.toolbar.record_chip.text()!r}",
     )
-    window.close()
+    _close_window(window)
     app.processEvents()
 
     section("chart header and unit chip")
@@ -1892,7 +1908,7 @@ def main() -> int:
     # The locale is process-wide: leave it where the other sections expect it.
     header_window._set_language("zh_CN")
     app.processEvents()
-    header_window.close()
+    _close_window(header_window)
     app.processEvents()
 
     section("acquisition correctness")
@@ -2156,7 +2172,7 @@ def main() -> int:
     pane_window.replay.close()
     pane_window._stop_run(reason="user_stop")
     stuck.release()
-    pane_window.close()
+    _close_window(pane_window)
     app.processEvents()
     _shutil.rmtree(replay_root, ignore_errors=True)
 
@@ -2323,7 +2339,7 @@ def main() -> int:
     )
     check(meta["stats"]["frames"] == 31, f"unexpected frame count: {meta['stats']['frames']}")
 
-    window.close()
+    _close_window(window)
     app.processEvents()
     stuck.release()
     _shutil.rmtree(scratch, ignore_errors=True)
@@ -2430,7 +2446,7 @@ def main() -> int:
             f"the session phase is {fail_window._session_phase!r} after a failed recording",
         )
 
-    fail_window.close()
+    _close_window(fail_window)
     app.processEvents()
     stuck_fail.release()
     _app_module.recordings_dir = lambda: scratch
@@ -2605,7 +2621,7 @@ def main() -> int:
         f"a matching calibration was not requested: {stuck_identity.calibration_requests}",
     )
 
-    identity_window.close()
+    _close_window(identity_window)
     app.processEvents()
     _shutil.rmtree(record_dir, ignore_errors=True)
 
@@ -2657,7 +2673,7 @@ def main() -> int:
         units_plots.history.sample_count > 0,
         "the rebuilt history lost every sample",
     )
-    units_window.close()
+    _close_window(units_window)
     units_window._box_worker = None
     stuck_units.release()
     app.processEvents()
@@ -2716,7 +2732,7 @@ def main() -> int:
         and not any(_math.isfinite(v) for v in one_state.values[:, 1]),
         "FX carried a value without a calibration curve",
     )
-    one_window.close()
+    _close_window(one_window)
     one_window._box_worker = None
     stuck_one.release()
     app.processEvents()
@@ -2903,7 +2919,7 @@ def main() -> int:
     check(plots._source_ready, "switching units detached the curve source")
     check(plots._unit == "N", f"the unit switch did not reach the charts: {plots._unit}")
 
-    window.close()
+    _close_window(window)
     app.processEvents()
     stuck.release()
 
@@ -2996,7 +3012,7 @@ def main() -> int:
         "the way back to the camera did not take effect",
     )
 
-    window.close()
+    _close_window(window)
     app.processEvents()
     stuck.release()
 
@@ -3141,7 +3157,7 @@ def main() -> int:
         pane.close_view()
         check(True, "closing the 3D pane twice is safe")
     finally:
-        pane_window.close()
+        _close_window(pane_window)
         app.processEvents()
 
     section("replay")
@@ -3325,7 +3341,7 @@ def main() -> int:
     )
     other_window.replay_ctl.stop_activity()
     app.processEvents()
-    other_window.close()
+    _close_window(other_window)
     app.processEvents()
     replay_window.activateWindow()
     app.processEvents()
@@ -3706,7 +3722,7 @@ def main() -> int:
     )
 
     replay_window.replay.close()
-    replay_window.close()
+    _close_window(replay_window)
     app.processEvents()
 
     _shutil.rmtree(replay_root, ignore_errors=True)