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authorLars Schmertmann <Lars.Schmertmann@governikus.de>2018-04-12 15:20:26 +0200
committerLars Schmertmann <lars.schmertmann@governikus.de>2018-04-18 17:57:30 +0000
commitc08197ccab36c10287df2e509d0c7e0c87e29fa5 (patch)
tree5a2e09b3252956be86f77deed78b0738b9fe2bb6 /tests/auto/corelib/kernel/qobject/tst_qobject.cpp
parent0dd2973761be84be206ccdb30d3577a7d50dcf44 (diff)
QObject: Extend debug output of connect
Sometimes it is hard to find the line, when the warning "QObject::connect: invalid null parameter" appears in the log. This change adds the class names of the sender and receiver to give a hint where to search for the wrong call to connect. Change-Id: I00cead7d943f96d60f198cb3f0bed34ba10285c5 Reviewed-by: André Hartmann <aha_1980@gmx.de>
Diffstat (limited to 'tests/auto/corelib/kernel/qobject/tst_qobject.cpp')
-rw-r--r--tests/auto/corelib/kernel/qobject/tst_qobject.cpp21
1 files changed, 21 insertions, 0 deletions
diff --git a/tests/auto/corelib/kernel/qobject/tst_qobject.cpp b/tests/auto/corelib/kernel/qobject/tst_qobject.cpp
index c734cfe4dd..43dcb241e4 100644
--- a/tests/auto/corelib/kernel/qobject/tst_qobject.cpp
+++ b/tests/auto/corelib/kernel/qobject/tst_qobject.cpp
@@ -145,6 +145,7 @@ private slots:
void disconnectDoesNotLeakFunctor();
void contextDoesNotLeakFunctor();
void connectBase();
+ void connectWarnings();
void qmlConnect();
void exceptions();
void noDeclarativeParentChangedOnDestruction();
@@ -6685,6 +6686,26 @@ void tst_QObject::connectBase()
QCOMPARE( r1.count_slot3, 1 );
}
+void tst_QObject::connectWarnings()
+{
+ SubSender sub;
+ SenderObject obj;
+ ReceiverObject r1;
+ r1.reset();
+
+ QTest::ignoreMessage(QtWarningMsg, "QObject::connect(SenderObject, ReceiverObject): invalid null parameter");
+ connect(nullptr, &SubSender::signal1, &r1, &ReceiverObject::slot1);
+
+ QTest::ignoreMessage(QtWarningMsg, "QObject::connect(SubSender, Unknown): invalid null parameter");
+ connect(&sub, &SubSender::signal1, nullptr, &ReceiverObject::slot1);
+
+ QTest::ignoreMessage(QtWarningMsg, "QObject::connect(SenderObject, ReceiverObject): invalid null parameter");
+ connect(nullptr, &SenderObject::signal1, &r1, &ReceiverObject::slot1);
+
+ QTest::ignoreMessage(QtWarningMsg, "QObject::connect(SenderObject, Unknown): invalid null parameter");
+ connect(&obj, &SenderObject::signal1, nullptr, &ReceiverObject::slot1);
+}
+
struct QmlReceiver : public QtPrivate::QSlotObjectBase
{
int callCount;