diff --git a/autotests/libs/fakeserverdata.h b/autotests/libs/fakeserverdata.h
--- a/autotests/libs/fakeserverdata.h
+++ b/autotests/libs/fakeserverdata.h
@@ -39,7 +39,7 @@
     FakeServerData(EntityTreeModel *model, FakeSession *session, FakeMonitor *monitor, QObject *parent = nullptr);
     FakeServerData(TagModel *model, FakeSession *session, FakeMonitor *monitor, QObject *parent = nullptr);
 
-    void setCommands(QList<FakeAkonadiServerCommand *> list);
+    void setCommands(const QList<FakeAkonadiServerCommand *> &list);
 
     Collection::Id nextCollectionId() const
     {
diff --git a/autotests/libs/fakeserverdata.cpp b/autotests/libs/fakeserverdata.cpp
--- a/autotests/libs/fakeserverdata.cpp
+++ b/autotests/libs/fakeserverdata.cpp
@@ -61,10 +61,10 @@
 }
 
 
-void FakeServerData::setCommands(QList< FakeAkonadiServerCommand * > list)
+void FakeServerData::setCommands(const QList<FakeAkonadiServerCommand *> &list)
 {
     m_communicationQueue.clear();
-    Q_FOREACH (FakeAkonadiServerCommand *command, list) {
+    for (FakeAkonadiServerCommand *command : list) {
         m_communicationQueue << command;
     }
 }
@@ -76,6 +76,7 @@
         if (respondTo == FakeAkonadiServerCommand::Notification) {
             FakeAkonadiServerCommand *command = m_communicationQueue.dequeue();
             command->doCommand();
+            delete command;
         } else {
             return;
         }
@@ -123,6 +124,7 @@
         if (!m_communicationQueue.isEmpty()) {
             returnEntities(fetchColId);
         }
+        delete command;
         return true;
     }
     return false;
@@ -138,6 +140,7 @@
         if (!m_communicationQueue.isEmpty()) {
             returnEntities(fetchColId);
         }
+        delete command;
     }
 }
 
@@ -148,5 +151,6 @@
     if (commType == FakeAkonadiServerCommand::RespondToTagFetch) {
         FakeAkonadiServerCommand *command = m_communicationQueue.dequeue();
         command->doCommand();
+        delete command;
     }
 }