diff --git a/src/libs/vpatterndb/vtranslatevars.cpp b/src/libs/vpatterndb/vtranslatevars.cpp
index 7ae9b033f..8e342da83 100644
--- a/src/libs/vpatterndb/vtranslatevars.cpp
+++ b/src/libs/vpatterndb/vtranslatevars.cpp
@@ -930,6 +930,7 @@ QString VTranslateVars::TryFormulaFromUser(const QString &formula, bool osSepara
 {
     try
     {
+        SCASSERT(qApp->TrVars() != nullptr)
         return qApp->TrVars()->FormulaFromUser(formula, osSeparator);
     }
     catch (qmu::QmuParserError &e)// In case something bad will happen
diff --git a/src/test/ValentinaTest/ValentinaTest.pro b/src/test/ValentinaTest/ValentinaTest.pro
index 69d2fd1ea..4af00d0aa 100644
--- a/src/test/ValentinaTest/ValentinaTest.pro
+++ b/src/test/ValentinaTest/ValentinaTest.pro
@@ -90,7 +90,8 @@ HEADERS += \
     tst_readval.h \
     tst_vtranslatevars.h \
     tst_vabstractpiece.h \
-    tst_vtooluniondetails.h
+    tst_vtooluniondetails.h \
+    testvapplication.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 df9ba7327..3a89e33f6 100644
--- a/src/test/ValentinaTest/qttestmainlambda.cpp
+++ b/src/test/ValentinaTest/qttestmainlambda.cpp
@@ -53,48 +53,7 @@
 
 #include "../vmisc/def.h"
 #include "../qmuparser/qmudef.h"
-#include "../vmisc/vabstractapplication.h"
-
-class TestVApplication : public VAbstractApplication
-{
-public:
-
-    TestVApplication(int &argc, char ** argv);
-    virtual ~TestVApplication() Q_DECL_EQ_DEFAULT;
-
-    virtual const VTranslateVars *TrVars();
-    virtual void                  OpenSettings();
-    virtual bool                  IsAppInGUIMode() const;
-    virtual void                  InitTrVars();
-};
-
-//---------------------------------------------------------------------------------------------------------------------
-TestVApplication::TestVApplication(int &argc, char **argv)
-    : VAbstractApplication(argc, argv)
-{
-}
-
-//---------------------------------------------------------------------------------------------------------------------
-const VTranslateVars *TestVApplication::TrVars()
-{
-    return nullptr;
-}
-
-//---------------------------------------------------------------------------------------------------------------------
-void TestVApplication::OpenSettings()
-{
-}
-
-//---------------------------------------------------------------------------------------------------------------------
-bool TestVApplication::IsAppInGUIMode() const
-{
-    return false;
-}
-
-//---------------------------------------------------------------------------------------------------------------------
-void TestVApplication::InitTrVars()
-{
-}
+#include "testvapplication.h"
 
 //---------------------------------------------------------------------------------------------------------------------
 int main(int argc, char** argv)
diff --git a/src/test/ValentinaTest/testvapplication.h b/src/test/ValentinaTest/testvapplication.h
new file mode 100644
index 000000000..33d7a452a
--- /dev/null
+++ b/src/test/ValentinaTest/testvapplication.h
@@ -0,0 +1,75 @@
+/************************************************************************
+ **
+ **  @file
+ **  @author Roman Telezhynskyi <dismine(at)gmail.com>
+ **  @date   30 9, 2017
+ **
+ **  @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) 2017 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 TESTVAPPLICATION_H
+#define TESTVAPPLICATION_H
+
+#include "../vmisc/vabstractapplication.h"
+
+#if defined(qApp)
+#undef qApp
+#endif
+#define qApp (static_cast<TestVApplication*>(QCoreApplication::instance()))
+
+class TestVApplication : public VAbstractApplication
+{
+public:
+    TestVApplication(int &argc, char ** argv)
+        : VAbstractApplication(argc, argv),
+          m_trVars(nullptr)
+    {}
+
+    virtual ~TestVApplication() Q_DECL_EQ_DEFAULT;
+
+    virtual const VTranslateVars *TrVars() Q_DECL_OVERRIDE
+    {
+        return m_trVars;
+    }
+
+    virtual void OpenSettings() Q_DECL_OVERRIDE
+    {}
+
+    virtual bool IsAppInGUIMode() const Q_DECL_OVERRIDE
+    {
+        return false;
+    }
+
+    virtual void InitTrVars() Q_DECL_OVERRIDE
+    {}
+
+    void SetTrVars(VTranslateVars *trVars)
+    {
+        m_trVars = trVars;
+    }
+private:
+    Q_DISABLE_COPY(TestVApplication)
+    VTranslateVars *m_trVars;
+};
+
+#endif // TESTVAPPLICATION_H
+
diff --git a/src/test/ValentinaTest/tst_vtranslatevars.cpp b/src/test/ValentinaTest/tst_vtranslatevars.cpp
index 4dc35b3fd..5d4d3a8be 100644
--- a/src/test/ValentinaTest/tst_vtranslatevars.cpp
+++ b/src/test/ValentinaTest/tst_vtranslatevars.cpp
@@ -30,6 +30,7 @@
 #include "../vmisc/logging.h"
 #include "../vpatterndb/vtranslatevars.h"
 #include "../qmuparser/qmuparsererror.h"
+#include "testvapplication.h"
 
 #include <QtTest>
 
@@ -45,6 +46,7 @@ TST_VTranslateVars::TST_VTranslateVars(QObject *parent)
 void TST_VTranslateVars::initTestCase()
 {
     m_trMs = new VTranslateVars();
+    qApp->SetTrVars(m_trMs);
 }
 
 //---------------------------------------------------------------------------------------------------------------------