dsh UI improvement

apps/customer/tests/conftest.py

@@ -0,0 +1,73 @@
+"""Shared fixtures for the customer app UI tests.
+
+The tests render real Qt widgets with the offscreen platform plugin, so they need
+no display and no camera hardware. A single ``QApplication`` is shared by the
+whole session (Qt forbids creating more than one).
+"""
+
+from __future__ import annotations
+
+import os
+import sys
+from pathlib import Path
+
+import pytest
+
+os.environ.setdefault("QT_QPA_PLATFORM", "offscreen")
+if sys.platform == "win32" and "QT_QPA_FONTDIR" not in os.environ:
+    _fonts = Path(os.environ.get("WINDIR", r"C:\Windows")) / "Fonts"
+    if _fonts.is_dir():
+        os.environ["QT_QPA_FONTDIR"] = str(_fonts)
+
+
+@pytest.fixture(scope="session")
+def qt_app():
+    from PyQt5.QtWidgets import QApplication
+
+    app = QApplication.instance() or QApplication([])
+    yield app
+
+
+@pytest.fixture
+def make_window(qt_app, tmp_path, monkeypatch):
+    """Build a ``CustomerMainWindow`` whose preference writes stay in tmp_path."""
+    from orisys_app_shared import prefs as prefs_pkg
+    from orisys_app_shared import paths as paths_mod
+    from orisys_customer.app_window import CustomerMainWindow
+
+    prefs_file = tmp_path / "preference.json"
+    monkeypatch.setattr(paths_mod, "preference_path", lambda: prefs_file)
+    monkeypatch.setattr(prefs_pkg.store, "preference_path", lambda: prefs_file)
+
+    default_prefs = {
+        "language": "zh_CN",
+        "theme": "dark",
+        "sensor_type": "box",
+        "source_mode": "camera",
+    }
+
+    created = []
+
+    def _make(**overrides):
+        data = dict(default_prefs)
+        data.update(overrides)
+        window = CustomerMainWindow(prefs=data)
+        created.append(window)
+        return window
+
+    yield _make
+
+    for window in created:
+        try:
+            window.close()
+        except Exception:
+            pass
+
+
+def visible_descendants(widget):
+    """Yield every visible descendant widget of ``widget``."""
+    for child in widget.findChildren(object):
+        if not hasattr(child, "isVisible") or not hasattr(child, "geometry"):
+            continue
+        if child.isVisible():
+            yield child