Plug remaining leaks in tests/auto/widgets/util

In tst_QCompleter, two completers were leaked because they
had no parent and setCompleter() calls don't reparent.

Fixed by giving them parents.

In tst_QUndo*, fix lots of leaked QActions by storing them
in a QScopedPointer. There were some half-hearted attempts
to clean them up with manual deletes, but I ported these to
scoped pointers, too, to make the code more robust in the
face of failures.

This fixes the remaining errors in GCC 6.1 Linux ASan runs of
tests/auto/widgets/util.

Change-Id: Icc5248cc9cf4514540915924df1c4d9e09c071fa
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/tests/auto/widgets/util/qcompleter/tst_qcompleter.cpp b/tests/auto/widgets/util/qcompleter/tst_qcompleter.cpp
index 86a0bdf901..2a14d752e1 100644
--- a/tests/auto/widgets/util/qcompleter/tst_qcompleter.cpp
+++ b/tests/auto/widgets/util/qcompleter/tst_qcompleter.cpp
@@ -1228,7 +1228,7 @@ void tst_QCompleter::task178797_activatedOnReturn()
     words << "foobar1" << "foobar2";
     QLineEdit ledit;
     setFrameless(&ledit);
-    QCompleter *completer = new QCompleter(words);
+    QCompleter *completer = new QCompleter(words, &ledit);
     ledit.setCompleter(completer);
     QSignalSpy spy(completer, SIGNAL(activated(QString)));
     QCOMPARE(spy.count(), 0);
@@ -1335,7 +1335,7 @@ public:
 
     task250064_TextEdit()
     {
-        completer = new QCompleter;
+        completer = new QCompleter(this);
         completer->setWidget(this);
     }