diff --git a/tests/auto/corelib/io/qfile/tst_qfile.cpp b/tests/auto/corelib/io/qfile/tst_qfile.cpp
index 6ea699bc24a..7a5c1f6fd16 100644
--- a/tests/auto/corelib/io/qfile/tst_qfile.cpp
+++ b/tests/auto/corelib/io/qfile/tst_qfile.cpp
@@ -13,12 +13,13 @@
 #include <QDir>
 #include <QFile>
 #include <QFileInfo>
-#include <QRandomGenerator>
-#include <QTemporaryDir>
-#include <QTemporaryFile>
 #include <QOperatingSystemVersion>
+#include <QRandomGenerator>
 #include <QStorageInfo>
 #include <QScopeGuard>
+#include <QStandardPaths>
+#include <QTemporaryDir>
+#include <QTemporaryFile>
 
 #include <private/qabstractfileengine_p.h>
 #include <private/qfsfileengine_p.h>
@@ -428,6 +429,8 @@ void tst_QFile::cleanup()
 
 tst_QFile::tst_QFile() : m_oldDir(QDir::currentPath())
 {
+    QStandardPaths::setTestModeEnabled(true);
+    QDir().mkpath(QStandardPaths::writableLocation(QStandardPaths::GenericDataLocation));
 }
 
 static QByteArray msgOpenFailed(QIODevice::OpenMode om, const QFile &file)
diff --git a/tests/auto/corelib/io/qtemporaryfile/tst_qtemporaryfile.cpp b/tests/auto/corelib/io/qtemporaryfile/tst_qtemporaryfile.cpp
index 42194fe7e5d..3940aabf772 100644
--- a/tests/auto/corelib/io/qtemporaryfile/tst_qtemporaryfile.cpp
+++ b/tests/auto/corelib/io/qtemporaryfile/tst_qtemporaryfile.cpp
@@ -4,13 +4,14 @@
 
 #include <QTest>
 #include <qcoreapplication.h>
-#include <qstring.h>
-#include <qtemporarydir.h>
-#include <qtemporaryfile.h>
 #include <qfile.h>
 #include <qdatetime.h>
 #include <qdir.h>
 #include <qset.h>
+#include <qstandardpaths.h>
+#include <qstring.h>
+#include <qtemporarydir.h>
+#include <qtemporaryfile.h>
 
 #include <QtTest/private/qtesthelpers_p.h>
 
@@ -81,6 +82,9 @@ private:
 
 void tst_QTemporaryFile::initTestCase()
 {
+    QStandardPaths::setTestModeEnabled(true);
+    QDir().mkpath(QStandardPaths::writableLocation(QStandardPaths::GenericDataLocation));
+
     QVERIFY2(m_temporaryDir.isValid(), qPrintable(m_temporaryDir.errorString()));
     m_previousCurrent = QDir::currentPath();
     QVERIFY(QDir::setCurrent(m_temporaryDir.path()));