diff --git a/autotests/integration/kwin_wayland_test.h b/autotests/integration/kwin_wayland_test.h
index 6f18ca7b81..3eec1d9d1a 100644
--- a/autotests/integration/kwin_wayland_test.h
+++ b/autotests/integration/kwin_wayland_test.h
@@ -607,6 +607,12 @@ bool waitForWaylandKeyboard();
 
 void flushWaylandConnection();
 
+/**
+ * Ensures that all client requests are processed by the compositor and all events
+ * sent by the compositor are seen by the client.
+ */
+bool waylandSync();
+
 std::unique_ptr<KWayland::Client::Surface> createSurface();
 KWayland::Client::SubSurface *createSubSurface(KWayland::Client::Surface *surface,
                                                KWayland::Client::Surface *parentSurface, QObject *parent = nullptr);
diff --git a/autotests/integration/pointer_input.cpp b/autotests/integration/pointer_input.cpp
index 4c9cf45bb5..876308db4f 100644
--- a/autotests/integration/pointer_input.cpp
+++ b/autotests/integration/pointer_input.cpp
@@ -537,7 +537,8 @@ void PointerInputTest::testModifierClickUnrestrictedMove()
     // all of that should not have triggered button events on the surface
     QCOMPARE(buttonSpy.count(), 0);
     // also waiting shouldn't give us the event
-    QVERIFY(!buttonSpy.wait(100));
+    QVERIFY(Test::waylandSync());
+    QCOMPARE(buttonSpy.count(), 0);
 }
 
 void PointerInputTest::testModifierClickUnrestrictedFullscreenMove()
@@ -721,7 +722,8 @@ void PointerInputTest::testModifierScrollOpacity()
 
     // axis should have been filtered out
     QCOMPARE(axisSpy.count(), 0);
-    QVERIFY(!axisSpy.wait(100));
+    QVERIFY(Test::waylandSync());
+    QCOMPARE(axisSpy.count(), 0);
 }
 
 void PointerInputTest::testModifierScrollOpacityGlobalShortcutsDisabled()
@@ -961,7 +963,6 @@ void PointerInputTest::testMouseActionInactiveWindow()
     QVERIFY(!exclusiveContains(window2->frameGeometry(), QPointF(10, 10)));
     input()->pointer()->warp(QPointF(10, 10));
     // no focus follows mouse
-    QVERIFY(!stackingOrderChangedSpy.wait(200));
     QVERIFY(stackingOrderChangedSpy.isEmpty());
     QVERIFY(activeWindowChangedSpy.isEmpty());
     QVERIFY(window2->isActive());
@@ -1055,10 +1056,9 @@ void PointerInputTest::testMouseActionActiveWindow()
     QVERIFY(buttonSpy.wait());
     if (clickRaise) {
         QCOMPARE(stackingOrderChangedSpy.count(), 1);
-        QTRY_COMPARE_WITH_TIMEOUT(workspace()->topWindowOnDesktop(VirtualDesktopManager::self()->currentDesktop()), window2, 200);
+        QCOMPARE(workspace()->topWindowOnDesktop(VirtualDesktopManager::self()->currentDesktop()), window2);
     } else {
         QCOMPARE(stackingOrderChangedSpy.count(), 0);
-        QVERIFY(!stackingOrderChangedSpy.wait(100));
         QCOMPARE(workspace()->topWindowOnDesktop(VirtualDesktopManager::self()->currentDesktop()), window1);
     }
 
@@ -1237,7 +1237,8 @@ void PointerInputTest::testEffectOverrideCursorImage()
     // move cursor to area of window
     input()->pointer()->warp(window->frameGeometry().center());
     // this should not result in an enter event
-    QVERIFY(!enteredSpy.wait(100));
+    QVERIFY(Test::waylandSync());
+    QCOMPARE(enteredSpy.count(), 1);
 
     // after ending the interception we should get an enter event
     effects->stopMouseInterception(effect.get());
@@ -1439,7 +1440,8 @@ void PointerInputTest::testWindowUnderCursorWhileButtonPressed()
     QVERIFY(popupWindow != window);
     QVERIFY(exclusiveContains(window->frameGeometry(), Cursors::self()->mouse()->pos()));
     QVERIFY(exclusiveContains(popupWindow->frameGeometry(), Cursors::self()->mouse()->pos()));
-    QVERIFY(!leftSpy.wait());
+    QVERIFY(Test::waylandSync());
+    QCOMPARE(leftSpy.count(), 0);
 
     Test::pointerButtonReleased(BTN_LEFT, timestamp++);
     // now that the button is no longer pressed we should get the leave event
diff --git a/autotests/integration/test_helpers.cpp b/autotests/integration/test_helpers.cpp
index 76ce575da7..be3b9af787 100644
--- a/autotests/integration/test_helpers.cpp
+++ b/autotests/integration/test_helpers.cpp
@@ -771,6 +771,44 @@ void flushWaylandConnection()
     }
 }
 
+class WaylandSyncPoint : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit WaylandSyncPoint(KWayland::Client::ConnectionThread *connection, KWayland::Client::EventQueue *eventQueue)
+    {
+        static const wl_callback_listener listener = {
+            .done = [](void *data, wl_callback *callback, uint32_t callback_data) {
+                auto syncPoint = static_cast<WaylandSyncPoint *>(data);
+                Q_EMIT syncPoint->done();
+            },
+        };
+
+        m_callback = wl_display_sync(connection->display());
+        eventQueue->addProxy(m_callback);
+        wl_callback_add_listener(m_callback, &listener, this);
+    }
+
+    ~WaylandSyncPoint() override
+    {
+        wl_callback_destroy(m_callback);
+    }
+
+Q_SIGNALS:
+    void done();
+
+private:
+    wl_callback *m_callback;
+};
+
+bool waylandSync()
+{
+    WaylandSyncPoint syncPoint(s_waylandConnection.connection, s_waylandConnection.queue);
+    QSignalSpy doneSpy(&syncPoint, &WaylandSyncPoint::done);
+    return doneSpy.wait();
+}
+
 std::unique_ptr<KWayland::Client::Surface> createSurface()
 {
     if (!s_waylandConnection.compositor) {
@@ -1516,3 +1554,5 @@ void touchUp(qint32 id, quint32 time)
 }
 }
 }
+
+#include "test_helpers.moc"