fix[CI] PagesValidator UI test doesn't catch missing `required` properties

- use the full `QQmlEngine` to test loading of the component

Fixes #13901

storybook/validator_main.cpp

@@ -2,50 +2,51 @@
 #include <QQmlApplicationEngine>
 
 #include <QDir>
-#include <QQmlComponent>
-#include <QQmlContext>
 
 int main(int argc, char *argv[])
 {
     QGuiApplication app(argc, argv);
-    QQmlApplicationEngine engine;
 
-    const QStringList additionalImportPaths {
+    const QString pagesPath = QML_IMPORT_ROOT + QStringLiteral("/pages");
-        STATUSQ_MODULE_IMPORT_PATH,
+    QDir pagesDir(pagesPath);
+    const QFileInfoList files = pagesDir.entryInfoList({QStringLiteral("*Page.qml")},
+                                                       QDir::Files,
+                                                       QDir::Name);
+
+    const QStringList additionalImportPaths{STATUSQ_MODULE_IMPORT_PATH,
                                             QML_IMPORT_ROOT + QStringLiteral("/../ui/app"),
                                             QML_IMPORT_ROOT + QStringLiteral("/../ui/imports"),
                                             QML_IMPORT_ROOT + QStringLiteral("/src"),
-        QML_IMPORT_ROOT + QStringLiteral("/stubs")
+                                            QML_IMPORT_ROOT + QStringLiteral("/stubs")};
-    };
+
+    int errorCount = 0;
+    for (const auto &fileInfo : files) {
+        QQmlApplicationEngine engine;
+        engine.setOutputWarningsToStandardError(false);
+        engine.setBaseUrl(QUrl::fromLocalFile(pagesPath + QDir::separator()));
 
         for (const auto &path : additionalImportPaths)
             engine.addImportPath(path);
 
-    QString pagesPath = QML_IMPORT_ROOT + QStringLiteral("/pages");
+        QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
-    QDir pagesDir(pagesPath);
+                         &app, [&errorCount](QObject *obj, const QUrl &objUrl) {
-
+            if (!obj) {
-    const QFileInfoList files = pagesDir.entryInfoList(
+                errorCount++;
-                { QStringLiteral("*Page.qml") }, QDir::Files, QDir::Name);
+                qWarning() << ">>> Error loading StoryBook page:" << objUrl;
-
-    engine.setBaseUrl(QUrl::fromLocalFile(pagesPath + QDir::separator()));
-
-    bool errorsFound = false;
-
-    for (const auto& fileInfo : files) {
-        auto fileName = fileInfo.fileName();
-        qDebug() << fileName;
-
-        QQmlComponent component(&engine, fileName);
-
-        if (component.isError()) {
-            qWarning() << component.errors();
-            errorsFound = true;
             }
+        });
+
+        auto fileName = fileInfo.filePath();
+        qInfo() << ">>> Checking StoryBook page:" << fileName;
+
+        engine.load(fileName);
     }
 
-    if (errorsFound)
+    if (errorCount) {
+        qWarning() << ">>> StoryBook page verification failed with" << errorCount << "errors.";
         return EXIT_FAILURE;
+    }
 
-    qDebug() << "Verification completed successfully.";
+    qInfo() << ">>> StoryBook page verification completed successfully.";
     return EXIT_SUCCESS;
 }