Switch large file test to using Unbuffered mode

... so we test the file engine directly and detect file-system errors
earlier.

1 files changed, 2 insertions, 2 deletions

diff --git a/tests/auto/qfile/largefile/tst_largefile.cpp b/tests/auto/qfile/largefile/tst_largefile.cpp
index 53dbc127a8..8ab3275c0c 100644
--- a/tests/auto/qfile/largefile/tst_largefile.cpp
+++ b/tests/auto/qfile/largefile/tst_largefile.cpp
@@ -312,10 +312,10 @@ void tst_LargeFile::createSparseFile()
 
     int fd = ::_open_osfhandle((intptr_t)handle, 0);
     QVERIFY( -1 != fd );
-    QVERIFY( largeFile.open(fd, QIODevice::WriteOnly) );
+    QVERIFY( largeFile.open(fd, QIODevice::WriteOnly | QIODevice::Unbuffered) );
 #else // !Q_OS_WIN
     largeFile.setFileName("qt_largefile.tmp");
-    QVERIFY( largeFile.open(QIODevice::WriteOnly) );
+    QVERIFY( largeFile.open(QIODevice::WriteOnly | QIODevice::Unbuffered) );
 #endif
 }