3 files changed, 157 insertions, 0 deletions
diff --git a/tests/auto/client/clientextension/CMakeLists.txt b/tests/auto/client/clientextension/CMakeLists.txt
new file mode 100644
index 000000000..4997b7d77
--- /dev/null
+++ b/tests/auto/client/clientextension/CMakeLists.txt
@@ -0,0 +1,17 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+qt_internal_add_test(tst_clientextension
+    SOURCES
+        tst_clientextension.cpp
+    LIBRARIES
+        SharedClientTest
+)
+
+qt6_generate_wayland_protocol_client_sources(tst_clientextension
+    FILES ${CMAKE_CURRENT_SOURCE_DIR}/test.xml
+)
+
+qt6_generate_wayland_protocol_server_sources(tst_clientextension
+    FILES ${CMAKE_CURRENT_SOURCE_DIR}/test.xml
+)
diff --git a/tests/auto/client/clientextension/test.xml b/tests/auto/client/clientextension/test.xml
new file mode 100644
index 000000000..f8d5b4eac
--- /dev/null
+++ b/tests/auto/client/clientextension/test.xml
@@ -0,0 +1,6 @@
+<protocol name="test">
+    <interface name="test_interface" version="1">
+          <request name="release" type="destructor" />
+    </interface>
+</protocol>
+
diff --git a/tests/auto/client/clientextension/tst_clientextension.cpp b/tests/auto/client/clientextension/tst_clientextension.cpp
new file mode 100644
index 000000000..8dd4e0d98
--- /dev/null
+++ b/tests/auto/client/clientextension/tst_clientextension.cpp
@@ -0,0 +1,134 @@
+// Copyright (C) 2021 David Redondo <qt@david-redondo.de>
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#include <QSignalSpy>
+#include <QtGui/private/qguiapplication_p.h>
+#include <QtWaylandClient/private/qwayland-wayland.h>
+#include <QtWaylandClient/private/qwaylanddisplay_p.h>
+#include <QtWaylandClient/private/qwaylandintegration_p.h>
+#include <QtWaylandClient/qwaylandclientextension.h>
+#include <qwayland-server-test.h>
+#include <qwayland-test.h>
+#include "mockcompositor.h"
+#include "coreprotocol.h"
+
+using namespace MockCompositor;
+
+class TestExtension
+    : public QWaylandClientExtensionTemplate<TestExtension, &QtWayland::test_interface::release>,
+      public QtWayland::test_interface
+{
+public:
+    TestExtension() : QWaylandClientExtensionTemplate(1){};
+    void initialize() { QWaylandClientExtension::initialize(); }
+};
+
+class TestGlobal : public Global, public QtWaylandServer::test_interface
+{
+    Q_OBJECT
+public:
+    explicit TestGlobal(CoreCompositor *compositor)
+        : QtWaylandServer::test_interface(compositor->m_display, 1)
+    {
+    }
+};
+
+class tst_clientextension : public QObject, private CoreCompositor
+{
+    Q_OBJECT
+private:
+    QtWaylandClient::QWaylandDisplay *display()
+    {
+        return static_cast<QtWaylandClient::QWaylandIntegration *>(
+                       QGuiApplicationPrivate::platformIntegration())
+                ->display();
+    }
+private slots:
+    void cleanup()
+    {
+        display()->flushRequests();
+        dispatch();
+        exec([this] { removeAll<TestGlobal>(); });
+        QTRY_COMPARE(display()->globals().size(), 0);
+    }
+    void createWithoutGlobal();
+    void createWithGlobalAutomatic();
+    void createWithGlobalManual();
+    void globalBecomesAvailable();
+    void globalRemoved();
+};
+
+void tst_clientextension::createWithoutGlobal()
+{
+    TestExtension extension;
+    QSignalSpy spy(&extension, &QWaylandClientExtension::activeChanged);
+    QVERIFY(spy.isValid());
+    QVERIFY(!extension.isActive());
+    QCOMPARE(spy.size(), 0);
+    extension.initialize();
+    QVERIFY(!extension.isActive());
+    QCOMPARE(spy.size(), 0);
+}
+
+void tst_clientextension::createWithGlobalAutomatic()
+{
+    exec([this] { add<TestGlobal>(); });
+    QTRY_COMPARE(display()->globals().size(), 1);
+    TestExtension extension;
+    QSignalSpy spy(&extension, &QWaylandClientExtension::activeChanged);
+    QVERIFY(spy.isValid());
+    QTRY_VERIFY(extension.isActive());
+    QCOMPARE(spy.size(), 1);
+}
+
+void tst_clientextension::createWithGlobalManual()
+{
+    exec([this] { add<TestGlobal>(); });
+    QTRY_COMPARE(display()->globals().size(), 1);
+    // Wait for the display to have the global
+    TestExtension extension;
+    QSignalSpy spy(&extension, &QWaylandClientExtension::activeChanged);
+    QVERIFY(spy.isValid());
+    extension.initialize();
+    QVERIFY(extension.isActive());
+    QCOMPARE(spy.size(), 1);
+}
+
+void tst_clientextension::globalBecomesAvailable()
+{
+    TestExtension extension;
+    QSignalSpy spy(&extension, &QWaylandClientExtension::activeChanged);
+    QVERIFY(spy.isValid());
+    exec([this] { add<TestGlobal>(); });
+    QTRY_VERIFY(extension.isActive());
+    QCOMPARE(spy.size(), 1);
+}
+
+void tst_clientextension::globalRemoved()
+{
+    exec([this] { add<TestGlobal>(); });
+    TestExtension extension;
+    QTRY_VERIFY(extension.isActive());
+    QSignalSpy spy(&extension, &QWaylandClientExtension::activeChanged);
+    QVERIFY(spy.isValid());
+    QCOMPOSITOR_TRY_COMPARE(get<TestGlobal>()->resourceMap().size(), 1);
+
+    exec([this] { removeAll<TestGlobal>(); });
+    QTRY_VERIFY(!extension.isActive());
+    QCOMPARE(spy.size(), 1);
+}
+
+int main(int argc, char **argv)
+{
+    QTemporaryDir tmpRuntimeDir;
+    setenv("XDG_RUNTIME_DIR", tmpRuntimeDir.path().toLocal8Bit(), 1);
+    setenv("QT_QPA_PLATFORM", "wayland", 1);
+    setenv("QT_WAYLAND_DONT_CHECK_SHELL_INTEGRATION", "1", 1);
+
+    tst_clientextension tc;
+    QGuiApplication app(argc, argv);
+    QTEST_SET_MAIN_SOURCE_PATH
+    return QTest::qExec(&tc, argc, argv);
+}
+
+#include "tst_clientextension.moc"