diff --git a/tests/qttest/qetapptest.h b/tests/qttest/qetapptest.h
index 6e93f8ea5..123352abb 100644
--- a/tests/qttest/qetapptest.h
+++ b/tests/qttest/qetapptest.h
@@ -36,6 +36,7 @@
 #include <QApplication>
 #include <QCoreApplication>
 #include <QSettings>
+#include <QStandardPaths>
 #include <QTemporaryDir>
 #include <QtTest>
 
@@ -86,6 +87,11 @@ inline QAction *action(const QString &name)
 template <typename Test>
 int run(int argc, char **argv)
 {
+		//Some files are written to the standard folders whatever
+		//--data-dir says (qet-assistant.json, with the live-mode token, as
+		//the editor opens): test mode, before anything is written, keeps
+		//them away from the user's own
+	QStandardPaths::setTestModeEnabled(true);
 	QApplication app(argc, argv);
 	QCoreApplication::setOrganizationName("QElectroTech");
 	QCoreApplication::setApplicationName("QElectroTech");
diff --git a/tests/qttest/tst_assistantinfopaths.cpp b/tests/qttest/tst_assistantinfopaths.cpp
index 96e99dd67..21d7a10b5 100644
--- a/tests/qttest/tst_assistantinfopaths.cpp
+++ b/tests/qttest/tst_assistantinfopaths.cpp
@@ -25,7 +25,6 @@
 #include <QJsonDocument>
 #include <QJsonObject>
 #include <QSignalBlocker>
-#include <QStandardPaths>
 
 /**
 	qet-assistant.json names the user and company collections, and the qet
@@ -88,13 +87,6 @@ private slots:
 	}
 };
 
-int main(int argc, char **argv)
-{
-		//AssistantInfo writes to the standard data folder, whatever
-		//--data-dir says, and QETApp writes it as its editor opens: test
-		//mode from the very start keeps the user's own file out of reach.
-	QStandardPaths::setTestModeEnabled(true);
-	return QetAppTest::run<tst_assistantinfopaths>(argc, argv);
-}
+QET_APP_TEST_MAIN(tst_assistantinfopaths)
 
 #include "tst_assistantinfopaths.moc"