1 files changed, 8 insertions, 0 deletions
diff --git a/tests/auto/corelib/text/qstringbuilder/qstringbuilder1/stringbuilder.cpp b/tests/auto/corelib/text/qstringbuilder/qstringbuilder1/stringbuilder.cpp
index b811c63036..e0a261efd0 100644
--- a/tests/auto/corelib/text/qstringbuilder/qstringbuilder1/stringbuilder.cpp
+++ b/tests/auto/corelib/text/qstringbuilder/qstringbuilder1/stringbuilder.cpp
@@ -344,6 +344,14 @@ void runScenario()
         QByteArray ba2 = withZero;
         ba2 += ba2 P withZero;
         QCOMPARE(ba2, QByteArray(withZero + withZero + withZero));
+
+        // With space allocated in front, mirroring what happens with QHttpMultiPart in QNAM
+        QByteArray byteArray;
+        byteArray.reserve(70);
+        byteArray.insert(0, "multipart/");
+        byteArray.insert(byteArray.size(), "mixed");
+        byteArray += "; boundary=\"" P QByteArray(30, 'o') P '"';
+        QCOMPARE(byteArray, "multipart/mixed; boundary=\"oooooooooooooooooooooooooooooo\"");
     }
 
 }