Added unit tests for Timer.

/***************************************************************************

                          FileNameTest.cpp  -  description

                             -------------------

    begin                : Oct 17, 2018

    copyright            : (C) 2018 by Tomas Oberhuber

    email                : tomas.oberhuber@fjfi.cvut.cz

 ***************************************************************************/

/* See Copyright Notice in tnl/Copyright */

// Implemented by Nina Dzugasova

#ifdef HAVE_GTEST 

#include <gtest/gtest.h>

#endif

#include <TNL/Timer.h>

using namespace TNL;

#ifdef HAVE_GTEST 

TEST( TimerTest, Constructor )

{

    Timer time;

    time.reset();

    EXPECT_EQ(time.getRealTime(),0);

    time.start();

    time.stop();

    EXPECT_NE(time.getRealTime(),0);

}

#endif

#include "GtestMissingError.h"

int main( int argc, char* argv[] )

{

#ifdef HAVE_GTEST

   ::testing::InitGoogleTest( &argc, argv );

   return RUN_ALL_TESTS();

#else

   throw GtestMissingError();

#endif

}