diff --git a/tests/tst_common.cpp b/tests/tst_common.cpp
index f9c94628..10471b51 100644
--- a/tests/tst_common.cpp
+++ b/tests/tst_common.cpp
@@ -73,6 +73,7 @@ private Q_SLOTS:
     void tst_detachFromMainWindow();
     void tst_detachPos();
     void tst_floatingWindowSize();
+    void tst_sizeAfterRedock();
     void tst_tabbingWithAffinities();
 };
 
@@ -295,6 +296,36 @@ void TestCommon::tst_tabbingWithAffinities()
     delete fw2;
 }
 
+void TestCommon::tst_sizeAfterRedock()
+{
+    EnsureTopLevelsDeleted e;
+    auto dw1 = new DockWidgetType(QStringLiteral("1"));
+    auto dw2 = new DockWidgetType(QStringLiteral("2"));
+    dw2->setWidget(new MyWidget("2", Qt::red));
+
+    dw1->addDockWidgetToContainingWindow(dw2, Location_OnBottom);
+    const int height2 = dw2->frame()->height();
+
+    dw2->setFloating(true);
+    QCOMPARE(height2, dw2->window()->height());
+    auto oldFw2 = dw2->floatingWindow();
+
+    // Redock
+    FloatingWindow *fw1 = dw1->floatingWindow();
+    DropArea *dropArea = fw1->dropArea();
+
+    MultiSplitter *ms1 = fw1->multiSplitter();
+    const QRect suggestedDropRect = ms1->rectForDrop(oldFw2, Location_OnBottom, nullptr);
+    QCOMPARE(suggestedDropRect.height(), height2);
+
+    dropArea->drop(dw2->floatingWindow(), Location_OnBottom, nullptr);
+
+    QCOMPARE(dw2->frame()->height(), height2);
+
+    delete dw1->window();
+    delete oldFw2;
+}
+
 int main(int argc, char *argv[])
 {
     if (!qpaPassedAsArgument(argc, argv)) {
diff --git a/tests/tst_docks.cpp b/tests/tst_docks.cpp
index 39579f36..383017f1 100644
--- a/tests/tst_docks.cpp
+++ b/tests/tst_docks.cpp
@@ -422,7 +422,6 @@ private Q_SLOTS:
     void tst_closeRemovesFromSideBar();
     void tst_tabTitleChanges();
     void tst_dockWidgetGetsFocusWhenDocked();
-    void tst_sizeAfterRedock();
 private:
     std::unique_ptr<MultiSplitter> createMultiSplitterFromSetup(MultiSplitterSetup setup, QHash<QWidget *, Frame *> &frameMap) const;
 };
@@ -6130,36 +6129,6 @@ void TestDocks::tst_dockWidgetGetsFocusWhenDocked()
     delete fw2;
 }
 
-void TestDocks::tst_sizeAfterRedock()
-{
-    EnsureTopLevelsDeleted e;
-    auto dw1 = new DockWidget(QStringLiteral("1"));
-    auto dw2 = new DockWidget(QStringLiteral("2"));
-    dw2->setWidget(new QWidget());
-
-    dw1->addDockWidgetToContainingWindow(dw2, Location_OnBottom);
-    const int height2 = dw2->frame()->height();
-
-    dw2->setFloating(true);
-    QCOMPARE(height2, dw2->window()->height());
-    auto oldFw2 = dw2->floatingWindow();
-
-    // Redock
-    FloatingWindow *fw1 = dw1->floatingWindow();
-    DropArea *dropArea = fw1->dropArea();
-
-    MultiSplitter *ms1 = fw1->multiSplitter();
-    const QRect suggestedDropRect = ms1->rectForDrop(oldFw2, Location_OnBottom, nullptr);
-    QCOMPARE(suggestedDropRect.height(), height2);
-
-    dropArea->drop(dw2->floatingWindow(), Location_OnBottom, nullptr);
-
-    QCOMPARE(dw2->frame()->height(), height2);
-
-    delete dw1->window();
-    delete oldFw2;
-}
-
 int main(int argc, char *argv[])
 {
     if (!qpaPassedAsArgument(argc, argv)) {