diff --git a/src/test/ValentinaTest/ValentinaTest.pro b/src/test/ValentinaTest/ValentinaTest.pro
index fbc073f9a..8c2e09243 100644
--- a/src/test/ValentinaTest/ValentinaTest.pro
+++ b/src/test/ValentinaTest/ValentinaTest.pro
@@ -48,7 +48,8 @@ SOURCES += \
     tst_valentinacommandline.cpp \
     tst_qmutokenparser.cpp \
     tst_vmeasurements.cpp \
-    tst_qmuparsererrormsg.cpp
+    tst_qmuparsererrormsg.cpp \
+    tst_vlockguard.cpp
 
 HEADERS += \
     tst_vposter.h \
@@ -64,7 +65,8 @@ HEADERS += \
     tst_valentinacommandline.h \
     tst_qmutokenparser.h \
     tst_vmeasurements.h \
-    tst_qmuparsererrormsg.h
+    tst_qmuparsererrormsg.h \
+    tst_vlockguard.h
 
 # Set using ccache. Function enable_ccache() defined in common.pri.
 $$enable_ccache()
diff --git a/src/test/ValentinaTest/qttestmainlambda.cpp b/src/test/ValentinaTest/qttestmainlambda.cpp
index 97bc40375..6e197e22f 100644
--- a/src/test/ValentinaTest/qttestmainlambda.cpp
+++ b/src/test/ValentinaTest/qttestmainlambda.cpp
@@ -40,6 +40,7 @@
 #include "tst_qmutokenparser.h"
 #include "tst_vmeasurements.h"
 #include "tst_qmuparsererrormsg.h"
+#include "tst_vlockguard.h"
 
 int main(int argc, char** argv)
 {
@@ -66,6 +67,7 @@ int main(int argc, char** argv)
     ASSERT_TEST(new TST_QmuTokenParser());
     ASSERT_TEST(new TST_VMeasurements());
     ASSERT_TEST(new TST_QmuParserErrorMsg());
+    ASSERT_TEST(new TST_VLockGuard());
 
     return status;
 }
diff --git a/src/test/ValentinaTest/tst_vlockguard.cpp b/src/test/ValentinaTest/tst_vlockguard.cpp
new file mode 100644
index 000000000..7574eca9a
--- /dev/null
+++ b/src/test/ValentinaTest/tst_vlockguard.cpp
@@ -0,0 +1,52 @@
+/************************************************************************
+ **
+ **  @file   tst_vlockguard.cpp
+ **  @author Roman Telezhynskyi <dismine(at)gmail.com>
+ **  @date   26 10, 2015
+ **
+ **  @brief
+ **  @copyright
+ **  This source code is part of the Valentine project, a pattern making
+ **  program, whose allow create and modeling patterns of clothing.
+ **  Copyright (C) 2015 Valentina project
+ **  <https://bitbucket.org/dismine/valentina> All Rights Reserved.
+ **
+ **  Valentina is free software: you can redistribute it and/or modify
+ **  it under the terms of the GNU General Public License as published by
+ **  the Free Software Foundation, either version 3 of the License, or
+ **  (at your option) any later version.
+ **
+ **  Valentina is distributed in the hope that it will be useful,
+ **  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ **  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ **  GNU General Public License for more details.
+ **
+ **  You should have received a copy of the GNU General Public License
+ **  along with Valentina.  If not, see <http://www.gnu.org/licenses/>.
+ **
+ *************************************************************************/
+
+#include "tst_vlockguard.h"
+#include "../vmisc/vlockguard.h"
+
+#include <QtTest>
+
+//---------------------------------------------------------------------------------------------------------------------
+TST_VLockGuard::TST_VLockGuard(QObject *parent)
+    :QObject(parent)
+{
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void TST_VLockGuard::TryLock() const
+{
+    QString fileName(QApplication::applicationDirPath() + "/lockFile.txt");
+    std::shared_ptr<VLockGuard<char>> lock;
+    VlpCreateLock(lock, fileName);
+
+    fileName = lock->GetLockFile();
+    QVERIFY2(QFileInfo(fileName).exists(), "Lock file doesn't exist!");
+
+    lock.reset();
+    QVERIFY2(not QFileInfo(fileName).exists(), "Lock file still exists!");
+}
diff --git a/src/test/ValentinaTest/tst_vlockguard.h b/src/test/ValentinaTest/tst_vlockguard.h
new file mode 100644
index 000000000..b418f623f
--- /dev/null
+++ b/src/test/ValentinaTest/tst_vlockguard.h
@@ -0,0 +1,44 @@
+/************************************************************************
+ **
+ **  @file   tst_vlockguard.h
+ **  @author Roman Telezhynskyi <dismine(at)gmail.com>
+ **  @date   26 10, 2015
+ **
+ **  @brief
+ **  @copyright
+ **  This source code is part of the Valentine project, a pattern making
+ **  program, whose allow create and modeling patterns of clothing.
+ **  Copyright (C) 2015 Valentina project
+ **  <https://bitbucket.org/dismine/valentina> All Rights Reserved.
+ **
+ **  Valentina is free software: you can redistribute it and/or modify
+ **  it under the terms of the GNU General Public License as published by
+ **  the Free Software Foundation, either version 3 of the License, or
+ **  (at your option) any later version.
+ **
+ **  Valentina is distributed in the hope that it will be useful,
+ **  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ **  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ **  GNU General Public License for more details.
+ **
+ **  You should have received a copy of the GNU General Public License
+ **  along with Valentina.  If not, see <http://www.gnu.org/licenses/>.
+ **
+ *************************************************************************/
+
+#ifndef TST_VLOCKGUARD_H
+#define TST_VLOCKGUARD_H
+
+#include <QObject>
+
+class TST_VLockGuard : public QObject
+{
+    Q_OBJECT
+public:
+    explicit TST_VLockGuard(QObject *parent = nullptr);
+
+private slots:
+    void TryLock() const;
+};
+
+#endif // TST_VLOCKGUARD_H