diff --git a/tests/FilenameTest.cpp b/tests/FilenameTest.cpp
index a5a6d84..c07526e 100644
--- a/tests/FilenameTest.cpp
+++ b/tests/FilenameTest.cpp
@@ -1,97 +1,97 @@
 #include <QDir>
 #include <QFile>
 #include <QtTest>
 #include <QUuid>
 
 #include "SpectacleCommon.h"
 #include "ExportManager.h"
 
 class FilenameTest: public QObject
 {
     Q_OBJECT
 
     private:
 
     ExportManager* mExportManager;
 
     private Q_SLOTS:
 
     void initTestCase();
     void testStrings();
     void testDateTokens();
     void testWindowTitle();
     void testNumbering();
     void testCombined();
 };
 
 void FilenameTest::initTestCase()
 {
     mExportManager = ExportManager::instance();
     mExportManager->setTimestamp(QDateTime::fromString(QStringLiteral("2019-03-22T10:43:25"), Qt::ISODate));
     mExportManager->setWindowTitle(QStringLiteral("Spectacle"));
 }
 
 void FilenameTest::testStrings()
 {
     QCOMPARE(mExportManager->formatFilename(QStringLiteral("Screenshot")), QStringLiteral("Screenshot"));
     // empty string produces Screenshot per default
-    QCOMPARE(mExportManager->formatFilename(QStringLiteral("")), QStringLiteral("Screenshot"));
+    QCOMPARE(mExportManager->formatFilename(QString()), QStringLiteral("Screenshot"));
     // not a placeholder
     QCOMPARE(mExportManager->formatFilename(QStringLiteral("%")), QStringLiteral("%"));
     QCOMPARE(mExportManager->formatFilename(QStringLiteral("%K")), QStringLiteral("%K"));
 }
 
 void FilenameTest::testDateTokens()
 {
     QCOMPARE(mExportManager->formatFilename(QStringLiteral("%Y")), QStringLiteral("2019"));
     QCOMPARE(mExportManager->formatFilename(QStringLiteral("%y")), QStringLiteral("19"));
     QCOMPARE(mExportManager->formatFilename(QStringLiteral("%M")), QStringLiteral("03"));
     QCOMPARE(mExportManager->formatFilename(QStringLiteral("%D")), QStringLiteral("22"));
     QCOMPARE(mExportManager->formatFilename(QStringLiteral("%H")), QStringLiteral("10"));
     QCOMPARE(mExportManager->formatFilename(QStringLiteral("%m")), QStringLiteral("43"));
     QCOMPARE(mExportManager->formatFilename(QStringLiteral("%S")), QStringLiteral("25"));
 }
 
 void FilenameTest::testWindowTitle()
 {
     mExportManager->setCaptureMode(Spectacle::CaptureMode::ActiveWindow);
     QCOMPARE(mExportManager->formatFilename(QStringLiteral("%T")), QStringLiteral("Spectacle"));
     QCOMPARE(mExportManager->formatFilename(QStringLiteral("Before%TAfter")),
              QStringLiteral("BeforeSpectacleAfter"));
     mExportManager->setCaptureMode(Spectacle::CaptureMode::AllScreens);
     //Empty String produces Screenshot
     QCOMPARE(mExportManager->formatFilename(QStringLiteral("%T")), QStringLiteral("Screenshot"));
     QCOMPARE(mExportManager->formatFilename(QStringLiteral("Before%TAfter")), QStringLiteral("BeforeAfter"));
     QCOMPARE(mExportManager->formatFilename(QStringLiteral("Before_%T_After")), QStringLiteral("Before_After"));
 }
 
 void FilenameTest::testNumbering()
 {
     QString lBaseName = QStringLiteral("spectacle_test_")+ QUuid::createUuid().toString();
     QCOMPARE(mExportManager->formatFilename(lBaseName + QStringLiteral("_%d")),  lBaseName + QStringLiteral("_1"));
     QCOMPARE(mExportManager->formatFilename(lBaseName + QStringLiteral("_%1d")), lBaseName + QStringLiteral("_1"));
     QCOMPARE(mExportManager->formatFilename(lBaseName + QStringLiteral("_%2d")), lBaseName + QStringLiteral("_01"));
     QCOMPARE(mExportManager->formatFilename(lBaseName + QStringLiteral("_%3d")), lBaseName + QStringLiteral("_001"));
     QCOMPARE(mExportManager->formatFilename(lBaseName + QStringLiteral("_%4d")), lBaseName + QStringLiteral("_0001"));
     QCOMPARE(mExportManager->formatFilename(lBaseName + QStringLiteral("_%d_%2d_%3d")),
              lBaseName+QStringLiteral("_1_01_001"));
 
     QFile lFile(QDir(mExportManager->defaultSaveLocation()).filePath(lBaseName + QStringLiteral("_1.png")));
     lFile.open(QIODevice::WriteOnly);
     QCOMPARE(mExportManager->formatFilename(lBaseName+QStringLiteral("_%d")), lBaseName+QStringLiteral("_2"));
     lFile.remove();
 }
 
 void FilenameTest::testCombined()
 {
     mExportManager->setCaptureMode(Spectacle::CaptureMode::ActiveWindow);
     QCOMPARE(mExportManager->formatFilename(QStringLiteral("App_%T_Date_%Y%M%D_Time_%H:%m:%S%F")),
              QStringLiteral("App_Spectacle_Date_20190322_Time_10:43:25%F"));
     mExportManager->setCaptureMode(Spectacle::CaptureMode::AllScreens);
     QCOMPARE(mExportManager->formatFilename(QStringLiteral("App_%T_Date_%Y%M%D_Time_%H:%m:%S%F")),
              QStringLiteral("App_Date_20190322_Time_10:43:25%F"));
 }
 
 QTEST_MAIN(FilenameTest)
 
 #include "FilenameTest.moc"