Add headless UI toggle smoke test

share/uitest/toggle-smoke.py

@@ -0,0 +1,42 @@
+import sys, os, importlib.machinery, importlib.util, json
+os.environ["QT_QPA_PLATFORM"] = "offscreen"
+sys.argv = ["steamify-ui"]
+loader = importlib.machinery.SourceFileLoader("ui", sys.argv[0] if False else os.environ["UI"])
+spec = importlib.util.spec_from_loader("ui", loader); ui = importlib.util.module_from_spec(spec); loader.exec_module(ui)
+from PySide6.QtGui import QGuiApplication
+from PySide6.QtQml import QQmlApplicationEngine
+from PySide6.QtCore import QTimer, QObject, QMetaObject, Q_ARG, Qt
+app = QGuiApplication(sys.argv)
+backend = ui.Backend(ui.find_script()); pad = ui.Gamepad(); engine = QQmlApplicationEngine()
+engine.setInitialProperties({"backend": backend, "gamepad": pad, "fullscreen": False, "fromSteam": False, "iconUrl": ""})
+engine.load(os.path.join(ui.HERE, "qml", "Main.qml"))
+assert engine.rootObjects(), "QML did not load"
+root = engine.rootObjects()[0]; backend.refresh()
+def find_state():
+    for o in root.findChildren(QObject):
+        if o.property("want") is not None and o.property("resolution") is not None: return o
+state = None
+def step():
+    global state
+    state = find_state(); assert state, "no AppState"
+    def want(): return {k for k, v in state.property("want").toVariant().items() if v} if hasattr(state.property("want"),"toVariant") else {k for k,v in state.property("want").items() if v}
+    def toggle(i): QMetaObject.invokeMethod(state, "toggle", Qt.DirectConnection, Q_ARG("QVariant", i))
+    def vis(): 
+        r = state.property("resolution"); r = r.toVariant() if hasattr(r,"toVariant") else r
+        return set(r["visible"])
+    def plan():
+        r = state.property("resolution"); r = r.toVariant() if hasattr(r,"toVariant") else r
+        return [(p["id"], p["action"]) for p in r["plan"]]
+    print("start want", want(), "plan", plan(), "canApply", state.property("canApply"))
+    assert want() == {"theme"}
+    toggle("single"); print("after single", want(), plan())
+    assert want() == {"theme", "single", "gaming"} and plan() == [("gaming","on"),("single","on")]
+    assert "silent" in vis() and "poweroff" not in vis()
+    toggle("machine"); print("after machine", want(), vis())
+    assert "poweroff" in want() and "poweroff" in vis()
+    toggle("gaming"); print("after gaming off", want())
+    assert want() == {"theme", "machine", "poweroff"}
+    assert state.property("canApply") is True
+    print("UI OK"); app.quit()
+QTimer.singleShot(4000, step)
+sys.exit(app.exec())