From c62a193ca38a7574325f7a66a1014c683d735a34 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Robert=20L=C3=B6hning?= <robert.loehning@qt.io>
Date: Wed, 31 Mar 2021 19:17:36 +0200
Subject: [PATCH] Fuzzing: Simplify figuring out the failing datetime format

Task-number: QTBUG-92275
Change-Id: I732e72e614163b536c3fa9187011c57fea639b92
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
---
 .../libfuzzer/corelib/time/qdatetime/fromstring/main.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tests/libfuzzer/corelib/time/qdatetime/fromstring/main.cpp b/tests/libfuzzer/corelib/time/qdatetime/fromstring/main.cpp
index e41301bb55e..688bd3c24b8 100644
--- a/tests/libfuzzer/corelib/time/qdatetime/fromstring/main.cpp
+++ b/tests/libfuzzer/corelib/time/qdatetime/fromstring/main.cpp
@@ -28,6 +28,12 @@
 
 #include <QDateTime>
 
+// Enable to report the currently used format, e.g. when reproducing issues
+// #define LOG_FORMAT
+#ifdef LOG_FORMAT
+#include <QDebug>
+#endif
+
 static const QString formats[] = {
     QStringLiteral("h"),
     QStringLiteral("hh"),
@@ -94,6 +100,9 @@ extern "C" int LLVMFuzzerTestOneInput(const char *Data, size_t Size)
     QDateTime::fromString(userString, Qt::ISODateWithMs);
 
     for (const auto &format : formats) {
+        #ifdef LOG_FORMAT
+        qDebug() << "Trying format:" << format;
+        #endif
         QDateTime::fromString(userString, format);
     }
     return 0;