5 files changed, 135 insertions, 0 deletions
diff --git a/tests/manual/corelib/tools/customtype/CMakeLists.txt b/tests/manual/corelib/tools/customtype/CMakeLists.txt
new file mode 100644
index 0000000000..4cb1c024b3
--- /dev/null
+++ b/tests/manual/corelib/tools/customtype/CMakeLists.txt
@@ -0,0 +1,15 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+cmake_minimum_required(VERSION 3.16)
+
+qt_internal_add_manual_test(customtype
+    GUI
+    SOURCES
+        main.cpp
+        message.cpp message.h
+    LIBRARIES
+        Qt6::Core
+        Qt6::Gui
+        Qt6::Widgets
+)
diff --git a/tests/manual/corelib/tools/customtype/customtype.pro b/tests/manual/corelib/tools/customtype/customtype.pro
new file mode 100644
index 0000000000..0a5a90f541
--- /dev/null
+++ b/tests/manual/corelib/tools/customtype/customtype.pro
@@ -0,0 +1,7 @@
+HEADERS   = message.h
+SOURCES   = main.cpp \
+            message.cpp
+QT += widgets
+INCLUDEPATH += .
+TARGET = customtype
+
diff --git a/tests/manual/corelib/tools/customtype/main.cpp b/tests/manual/corelib/tools/customtype/main.cpp
new file mode 100644
index 0000000000..2368db6ec0
--- /dev/null
+++ b/tests/manual/corelib/tools/customtype/main.cpp
@@ -0,0 +1,37 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#include <QCoreApplication>
+#include <QDebug>
+#include <QVariant>
+#include "message.h"
+
+int main(int argc, char *argv[])
+{
+    QCoreApplication app(argc, argv);
+    QStringList headers;
+    headers << "Subject: Hello World"
+            << "From: address@example.com";
+    QString body = "This is a test.\r\n";
+
+//! [printing a custom type]
+    Message message(body, headers);
+    qDebug() << "Original:" << message;
+//! [printing a custom type]
+
+//! [storing a custom value]
+    QVariant stored;
+    stored.setValue(message);
+//! [storing a custom value]
+
+    qDebug() << "Stored:" << stored;
+
+//! [retrieving a custom value]
+    Message retrieved = qvariant_cast<Message>(stored);
+    qDebug() << "Retrieved:" << retrieved;
+    retrieved = qvariant_cast<Message>(stored);
+    qDebug() << "Retrieved:" << retrieved;
+//! [retrieving a custom value]
+
+    return 0;
+}
diff --git a/tests/manual/corelib/tools/customtype/message.cpp b/tests/manual/corelib/tools/customtype/message.cpp
new file mode 100644
index 0000000000..221480d56f
--- /dev/null
+++ b/tests/manual/corelib/tools/customtype/message.cpp
@@ -0,0 +1,38 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#include "message.h"
+
+#include <QDebug>
+
+Message::Message(const QString &body, const QStringList &headers)
+    : m_body(body), m_headers(headers)
+{
+}
+
+//! [custom type streaming operator]
+QDebug operator<<(QDebug dbg, const Message &message)
+{
+    QDebugStateSaver saver(dbg);
+    QList<QStringView> pieces = message.body().split(u"\r\n", Qt::SkipEmptyParts);
+    if (pieces.isEmpty())
+        dbg.nospace() << "Message()";
+    else if (pieces.size() == 1)
+        dbg.nospace() << "Message(" << pieces.first() << ")";
+    else
+        dbg.nospace() << "Message(" << pieces.first() << " ...)";
+    return dbg;
+}
+//! [custom type streaming operator]
+
+//! [getter functions]
+QStringView Message::body() const
+{
+    return m_body;
+}
+
+QStringList Message::headers() const
+{
+    return m_headers;
+}
+//! [getter functions]
diff --git a/tests/manual/corelib/tools/customtype/message.h b/tests/manual/corelib/tools/customtype/message.h
new file mode 100644
index 0000000000..3b91938eb7
--- /dev/null
+++ b/tests/manual/corelib/tools/customtype/message.h
@@ -0,0 +1,38 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#ifndef MESSAGE_H
+#define MESSAGE_H
+
+#include <QMetaType>
+#include <QStringList>
+
+//! [custom type definition]
+class Message
+{
+public:
+    Message() = default;
+    ~Message() = default;
+    Message(const Message &) = default;
+    Message &operator=(const Message &) = default;
+
+    Message(const QString &body, const QStringList &headers);
+
+    QStringView body() const;
+    QStringList headers() const;
+
+private:
+    QString m_body;
+    QStringList m_headers;
+};
+//! [custom type definition]
+
+//! [custom type meta-type declaration]
+Q_DECLARE_METATYPE(Message);
+//! [custom type meta-type declaration]
+
+//! [custom type streaming operator]
+QDebug operator<<(QDebug dbg, const Message &message);
+//! [custom type streaming operator]
+
+#endif