Add QTest::failOnWarning

This solves the long-standing problem of not being able to easily
fail a test when a certain warning is output.

[ChangeLog][QtTest] Added QTest::failOnWarning. When called in a test
function, any warning that matches the given pattern will cause a test
failure. The test will continue execution when a failure is added.
All patterns are cleared at the end of each test function.

Fixes: QTBUG-70029
Change-Id: I5763f8d4acf1cee8178be43a503619fbfb0f4f36
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/testlib/qtestresult.cpp b/src/testlib/qtestresult.cpp
index 899f5358b5..ae40164392 100644
--- a/src/testlib/qtestresult.cpp
+++ b/src/testlib/qtestresult.cpp
@@ -191,6 +191,7 @@ void QTestResult::finishedCurrentTestData()
         addFailure("Not all expected messages were received");
     }
     QTestLog::clearIgnoreMessages();
+    QTestLog::clearFailOnWarnings();
 }
 
 /*!