QHeaderView - adding an auto test with saveState and restoreState

This test is nice to have regardless though the main reason for it
is a refactor of hiddenSections in QHeaderView.

Change-Id: Id41a1d5edda2ef75bf432a78cdb3e952303eae92
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/tests/auto/widgets/itemviews/qheaderview/tst_qheaderview.cpp b/tests/auto/widgets/itemviews/qheaderview/tst_qheaderview.cpp
index 45839d2ab3..f61e38c432 100644
--- a/tests/auto/widgets/itemviews/qheaderview/tst_qheaderview.cpp
+++ b/tests/auto/widgets/itemviews/qheaderview/tst_qheaderview.cpp
@@ -230,6 +230,7 @@ private slots:
     void insertTest();
     void mixedTests();
     void resizeToContentTest();
+    void testStreamWithHide();
 
 protected:
     void setupTestData(bool use_reset_model = false);
@@ -2698,5 +2699,26 @@ void tst_QHeaderView::resizeToContentTest()
     calculateAndCheck(__LINE__, precalced_results);
 }
 
+void tst_QHeaderView::testStreamWithHide()
+{
+#ifndef QT_NO_DATASTREAM
+    m_tableview->setVerticalHeader(view);
+    m_tableview->setModel(model);
+    view->setDefaultSectionSize(25);
+    view->hideSection(2);
+    view->swapSections(1, 2);
+
+    QByteArray s = view->saveState();
+    view->swapSections(1, 2);
+    view->setDefaultSectionSize(30); // To make sure our precalced data are correct.
+    view->restoreState(s);
+
+    const int precalced_results[] =  { -1116614432, -1528653200, -1914165644, 244434607, -1111214068, 750357900, 75};
+    calculateAndCheck(__LINE__, precalced_results);
+#else
+    QSKIP("Datastream required for testStreamWithHide. Skipping this test.");
+#endif
+}
+
 QTEST_MAIN(tst_QHeaderView)
 #include "tst_qheaderview.moc"