first commit

app/tests/test_busy_overlay.py

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+from __future__ import annotations
+
+import os
+from types import SimpleNamespace
+from typing import Any
+
+os.environ.setdefault("QT_QPA_PLATFORM", "offscreen")
+
+import pytest
+from PySide6.QtCore import QEvent, QObject, QSettings
+from PySide6.QtWidgets import QApplication, QWidget
+
+from doctor_workstation.services import DemoDoctorRepository
+from doctor_workstation.ui.login import LoginWindow
+from doctor_workstation.ui.shell import ShellWindow
+from doctor_workstation.ui.widgets import BusyOverlay
+
+
+@pytest.fixture(scope="module")
+def application() -> QApplication:
+    return QApplication.instance() or QApplication([])
+
+
+def _visible_windows(application: QApplication) -> list[QWidget]:
+    return [
+        widget
+        for widget in application.topLevelWidgets()
+        if widget.isWindow() and widget.isVisible()
+    ]
+
+
+def test_busy_overlay_children_are_not_windows(application: QApplication) -> None:
+    host = QWidget()
+    host.resize(360, 240)
+    host.show()
+    application.processEvents()
+    before = {id(widget) for widget in _visible_windows(application)}
+
+    overlay = BusyOverlay(host, "正在验证账号…")
+    overlay.setVisible(True)
+    application.processEvents()
+
+    assert overlay.parentWidget() is host
+    assert not overlay.isWindow()
+    assert overlay.progress.objectName() == "BusyOverlayProgress"
+    assert overlay.progress.parentWidget() is overlay
+    assert overlay.label.parentWidget() is overlay
+    assert not overlay.progress.isWindow()
+    assert not overlay.label.isWindow()
+    extra = [
+        widget
+        for widget in _visible_windows(application)
+        if id(widget) not in before and widget is not host
+    ]
+    assert extra == []
+
+    overlay.setVisible(False)
+    host.close()
+    application.processEvents()
+
+
+def test_login_loading_does_not_spawn_extra_windows(
+    application: QApplication, tmp_path: Any
+) -> None:
+    settings = QSettings(str(tmp_path / "login.ini"), QSettings.Format.IniFormat)
+    window = LoginWindow(
+        object(),
+        config=SimpleNamespace(
+            api_base_url="https://127.0.0.1:9",
+            request_timeout=30,
+            demo_mode=False,
+            remembered_account="admin",
+        ),
+        settings=settings,
+    )
+    window.show()
+    application.processEvents()
+    before = {id(widget) for widget in _visible_windows(application)}
+
+    window._set_loading(True)
+    application.processEvents()
+
+    extra = [widget for widget in _visible_windows(application) if id(widget) not in before]
+    assert extra == []
+    assert window.busy_overlay.isVisible()
+    assert not window.busy_overlay.isWindow()
+    assert not window.busy_overlay.progress.isWindow()
+    assert window.busy_overlay.label.text() == "正在验证账号…"
+
+    window.close()
+    application.processEvents()
+
+
+def test_shell_construction_never_shows_orphan_business_controls(
+    application: QApplication,
+) -> None:
+    shown: list[tuple[str, str]] = []
+
+    class OrphanShowRecorder(QObject):
+        def eventFilter(self, watched: QObject, event: QEvent) -> bool:  # noqa: N802
+            if (
+                event.type() == QEvent.Type.Show
+                and isinstance(watched, QWidget)
+                and watched.parentWidget() is None
+            ):
+                text = getattr(watched, "text", lambda: "")()
+                shown.append((type(watched).__name__, str(text)))
+            return False
+
+    repository = DemoDoctorRepository()
+    session = repository.login(repository.DEMO_ACCOUNT, repository.DEMO_PASSWORD)
+    recorder = OrphanShowRecorder(application)
+    application.installEventFilter(recorder)
+    try:
+        shell = ShellWindow(
+            repository,
+            {
+                "session": session,
+                "user": session.user,
+                "demo_mode": True,
+            },
+            permissions=session.permissions,
+        )
+    finally:
+        application.removeEventFilter(recorder)
+
+    assert shown == []
+    shell.close()
+    application.processEvents()