diff --git a/tests/manual/wasm/CMakeLists.txt b/tests/manual/wasm/CMakeLists.txt
index f625defb21e..b13f6781b86 100644
--- a/tests/manual/wasm/CMakeLists.txt
+++ b/tests/manual/wasm/CMakeLists.txt
@@ -7,6 +7,7 @@ add_subdirectory(a11y)
if(QT_FEATURE_widgets)
add_subdirectory(cursors)
add_subdirectory(localfiles)
+add_subdirectory(localfonts)
add_subdirectory(qstdweb)
add_subdirectory(clipboard)
endif()
diff --git a/tests/manual/wasm/localfonts/CMakeLists.txt b/tests/manual/wasm/localfonts/CMakeLists.txt
new file mode 100644
index 00000000000..b5df4ad9fa6
--- /dev/null
+++ b/tests/manual/wasm/localfonts/CMakeLists.txt
@@ -0,0 +1,4 @@
+# Copyright (C) 2023 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+add_subdirectory(fontloading)
diff --git a/tests/manual/wasm/localfonts/fontloading/CMakeLists.txt b/tests/manual/wasm/localfonts/fontloading/CMakeLists.txt
new file mode 100644
index 00000000000..c3dc37d27dc
--- /dev/null
+++ b/tests/manual/wasm/localfonts/fontloading/CMakeLists.txt
@@ -0,0 +1,20 @@
+# Copyright (C) 2023 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+qt_internal_add_manual_test(fontloading
+ GUI
+ SOURCES
+ main.cpp
+ LIBRARIES
+ Qt::Core
+ Qt::Gui
+ Qt::Widgets
+)
+
+add_custom_command(
+ TARGET fontloading POST_BUILD
+ COMMAND ${CMAKE_COMMAND} -E copy
+ ${CMAKE_CURRENT_SOURCE_DIR}/fontloading.html
+ ${CMAKE_CURRENT_BINARY_DIR}/fontloading.html)
+#add_custom_target(html DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/fontloading.html)
+#add_dependencies(fontloading html)
diff --git a/tests/manual/wasm/localfonts/fontloading/fontloading.html b/tests/manual/wasm/localfonts/fontloading/fontloading.html
new file mode 100644
index 00000000000..619217205be
--- /dev/null
+++ b/tests/manual/wasm/localfonts/fontloading/fontloading.html
@@ -0,0 +1,167 @@
+
+
+
+
+
+
+
+
+
+
+Local Font Loading Test
+Click "Load" button below to load the Qt test app with the specified settings. This test provides additional logs on the JavaScript console.
+
+
+
+
diff --git a/tests/manual/wasm/localfonts/fontloading/main.cpp b/tests/manual/wasm/localfonts/fontloading/main.cpp
new file mode 100644
index 00000000000..fb8f8e268ba
--- /dev/null
+++ b/tests/manual/wasm/localfonts/fontloading/main.cpp
@@ -0,0 +1,78 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include
+#include
+
+#include
+#include
+
+using namespace emscripten;
+
+class FontViewer : public QWidget
+{
+public:
+ FontViewer() {
+ QTextEdit *edit = new QTextEdit;
+ edit->setPlainText("The quick brown fox jumps over the lazy dog\nHow quickly daft jumping zebras vex\nPack my box with five dozen liquor jugs");
+
+ QComboBox *combo = new QComboBox;
+ combo->addItems(QFontDatabase::families());
+
+ connect(combo, &QComboBox::currentTextChanged, [=](const QString &family) {
+ QFont font(family);
+ edit->setFont(font);
+ });
+
+ QObject::connect(qApp, &QGuiApplication::fontDatabaseChanged, [=]() {
+ QStringList families = QFontDatabase::families();
+ combo->clear();
+ combo->addItems(families);
+ });
+
+ QLayout *layout = new QVBoxLayout;
+ layout->addWidget(edit);
+ layout->addWidget(combo);
+ setLayout(layout);
+ }
+};
+
+FontViewer *g_viewer = nullptr;
+QApplication *g_app = nullptr;
+
+void deleteapp() {
+ delete g_viewer;
+ delete g_app;
+};
+
+EMSCRIPTEN_BINDINGS(fonloading) {
+ function("deleteapp", &deleteapp);
+}
+
+int main(int argc, char **argv)
+{
+ qDebug() << "C++ main: Creating application";
+ g_app = new QApplication(argc, argv);
+
+ // Make sure there is one call to fontFamiliesLoaded at startup,
+ // even if no further fonts are loaded.
+ QTimer::singleShot(0, [=]() {
+ emscripten::val window = emscripten::val::global("window");
+ window.call("fontFamiliesLoaded", QFontDatabase::families().count());
+ });
+
+ g_viewer = new FontViewer();
+ g_viewer->show();
+
+ QObject::connect(g_app, &QGuiApplication::fontDatabaseChanged, [=]() {
+ QStringList families = QFontDatabase::families();
+
+ emscripten::val window = emscripten::val::global("window");
+
+ window.call("fontFamiliesLoaded", families.count());
+ for (int i = 0; i < families.count(); ++i) {
+ window.call("fontFamilyLoaded", families[i].toStdString());
+ }
+ });
+}
+