test: baseline: Call finalizeAndDisconnect

Change-Id: I4379b4b982b869ca8d502d2f102ddc3b3858b5c8
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
(cherry picked from commit ae9006b72d199e2b8112a3a8bbf54609b2968a6e)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

tests/baseline/painting/tst_baseline_painting.cpp

@@ -55,6 +55,7 @@ private:
 private slots:
     void initTestCase();
     void init();
+    void cleanupTestCase();
 
     void testRasterARGB32PM_data();
     void testRasterARGB32PM();
@@ -139,6 +140,11 @@ void tst_Lancelot::init()
     QBASELINE_SKIP_IF_BLACKLISTED;
 }
 
+void tst_Lancelot::cleanupTestCase()
+{
+    QBaselineTest::finalizeAndDisconnect();
+}
+
 void tst_Lancelot::testRasterARGB32PM_data()
 {
     setupTestSuite();

tests/baseline/shared/qwidgetbaselinetest.cpp

@@ -100,6 +100,11 @@ void QWidgetBaselineTest::cleanup()
     window = nullptr;
 }
 
+void QWidgetBaselineTest::cleanupTestCase()
+{
+    QBaselineTest::finalizeAndDisconnect();
+}
+
 void QWidgetBaselineTest::makeVisible()
 {
     Q_ASSERT(window);

tests/baseline/shared/qwidgetbaselinetest.h

@@ -28,6 +28,7 @@ private slots:
     void initTestCase();
     void init();
     void cleanup();
+    void cleanupTestCase();
 
 protected:
     void makeVisible();