diff --git a/tests/testlib/akonadistoragetestbase.h b/tests/testlib/akonadistoragetestbase.h
--- a/tests/testlib/akonadistoragetestbase.h
+++ b/tests/testlib/akonadistoragetestbase.h
@@ -42,6 +42,8 @@
     virtual Akonadi::MonitorInterface::Ptr createMonitor() = 0;
 
 private slots:
+    void cleanupTestCase();
+
     void dumpTree();
     void shouldListCollections_data();
     void shouldListCollections();
diff --git a/tests/testlib/akonadistoragetestbase.cpp b/tests/testlib/akonadistoragetestbase.cpp
--- a/tests/testlib/akonadistoragetestbase.cpp
+++ b/tests/testlib/akonadistoragetestbase.cpp
@@ -59,6 +59,13 @@
     qRegisterMetaType<Akonadi::Tag>();
 }
 
+void AkonadiStorageTestBase::cleanupTestCase()
+{
+    // Give a chance for jobs still waiting for an event loop
+    // run to be deleted through deleteLater()
+    QTest::qWait(10);
+}
+
 void AkonadiStorageTestBase::dumpTree()
 {
     TestLib::AkonadiDebug::dumpTree(createStorage());
diff --git a/tests/units/migrator/zanshin021migrationtest.cpp b/tests/units/migrator/zanshin021migrationtest.cpp
--- a/tests/units/migrator/zanshin021migrationtest.cpp
+++ b/tests/units/migrator/zanshin021migrationtest.cpp
@@ -67,6 +67,13 @@
         //qApp->exec();
     }
 
+    void cleanupTestCase()
+    {
+        // Give a chance for jobs still waiting for an event loop
+        // run to be deleted through deleteLater()
+        QTest::qWait(10);
+    }
+
     void shouldFetchAllItems()
     {
         // GIVEN