Testlib/Windows: Output crash information on stdout instead of stderr.

Make it easier to capture information about crashing tests in log files,
since it is not possible to do something like
foo > log.txt 2> errlog.txt
on Windows.
Adapt selftest.

[ChangeLog][QtTest][Important Behavior Changes] Crash/exception
information is now logged to standard output on Windows.

Task-number: QTBUG-47370
Change-Id: I3e6a2d25855ed0f20516418a031990b562f5f757
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/tests/auto/testlib/selftests/tst_selftests.cpp b/tests/auto/testlib/selftests/tst_selftests.cpp
index 9b76bca28c..42d929c4a1 100644
--- a/tests/auto/testlib/selftests/tst_selftests.cpp
+++ b/tests/auto/testlib/selftests/tst_selftests.cpp
@@ -625,6 +625,13 @@ void tst_Selftests::doRunSubTest(QString const& subdir, QStringList const& logge
 
     for (int n = 0; n < loggers.count(); ++n) {
         QString logger = loggers[n];
+#if defined(Q_OS_WIN)
+        if (n == 0 && subdir == QLatin1String("crashes")) { // Remove stack trace which is output to stdout.
+            const int exceptionLogStart = actualOutputs.first().indexOf("A crash occurred in ");
+            if (exceptionLogStart >= 0)
+                actualOutputs[0].truncate(exceptionLogStart);
+        }
+#endif // Q_OS_WIN
         QList<QByteArray> res = splitLines(actualOutputs[n]);
         const QString expectedFileName = expectedFileNameFromTest(subdir, logger);
         QList<QByteArray> exp = expectedResult(expectedFileName);