diff --git a/src/backends/sage/testsage.cpp b/src/backends/sage/testsage.cpp
index a62bfcfa..0bec6eac 100644
--- a/src/backends/sage/testsage.cpp
+++ b/src/backends/sage/testsage.cpp
@@ -1,125 +1,124 @@
 /*
     This program 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 2
     of the License, or (at your option) any later version.
 
     This program 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 this program; if not, write to the Free Software
     Foundation, Inc., 51 Franklin Street, Fifth Floor,
     Boston, MA  02110-1301, USA.
 
     ---
     Copyright (C) 2009 Alexander Rieder <alexanderrieder@gmail.com>
  */
 
 #include "testsage.h"
 
 #include "session.h"
 #include "backend.h"
 #include "expression.h"
 #include "result.h"
 #include "imageresult.h"
 #include "textresult.h"
 
 #include <QDebug>
 
 QString TestSage::backendName()
 {
     return QLatin1String("sage");
 }
 
 void TestSage::testSimpleCommand()
 {
     Cantor::Expression* e=evalExp( QLatin1String("2+2") );
 
     QVERIFY( e!=nullptr );
     QVERIFY( e->result()!=nullptr );
     QCOMPARE( e->result()->toHtml(), QLatin1String(("4")) );
 }
 
 void TestSage::testCommandQueue()
 {
     //only wait for the last Expression to return, so the queue gets
     //actually filled
 
     Cantor::Expression* e1=session()->evaluateExpression(QLatin1String("0+1"));
     Cantor::Expression* e2=session()->evaluateExpression(QLatin1String("1+1"));
     Cantor::Expression* e3=evalExp(QLatin1String("1+2"));
 
     QVERIFY(e1!=nullptr);
     QVERIFY(e2!=nullptr);
     QVERIFY(e3!=nullptr);
 
     QVERIFY(e1->result());
     QVERIFY(e2->result());
     QVERIFY(e3->result());
 
     QCOMPARE(cleanOutput(e1->result()->toHtml()), QLatin1String("1"));
     QCOMPARE(cleanOutput(e2->result()->toHtml()), QLatin1String("2"));
     QCOMPARE(cleanOutput(e3->result()->toHtml()), QLatin1String("3"));
 }
 
 void TestSage::testMultilineCommand()
 {
     Cantor::Expression* e=evalExp( QLatin1String("2+2 \n simplify(1 - x + x)") );
 
     QVERIFY( e!=nullptr );
     QVERIFY( e->result()!=nullptr );
     QCOMPARE( e->result()->toHtml(), QLatin1String("4<br/>\n1") );
 }
 
 void TestSage::testDefineFunction()
 {
     const char* cmd="def func1(param) : \n" \
                     "    return param*param\n\n";
 
     Cantor::Expression* e1=evalExp( QLatin1String(cmd) );
 
     QVERIFY( e1!=nullptr );
-    QVERIFY( e1->result()!=nullptr );
 
     Cantor::Expression* e2=evalExp( QLatin1String("func1(2)") );
     QVERIFY( e2!=nullptr );
     QVERIFY( e2->result()!=nullptr );
     QCOMPARE( e2->result()->toHtml(), QLatin1String("4") );
 }
 
 void TestSage::testPlot()
 {
     Cantor::Expression* e=evalExp( QLatin1String("plot(sin(x))") );
 
     QVERIFY( e!=nullptr );
     QCOMPARE( e->results().size(), 2);
     QVERIFY( e->results()[0]->type() == Cantor::TextResult::Type);
     QCOMPARE( e->results()[0]->data().toString(), QLatin1String("Launched png viewer for Graphics object consisting of 1 graphics primitive"));
 
     QVERIFY( e->results()[1]->type() == Cantor::ImageResult::Type);
     QVERIFY( !e->results()[1]->data().isNull() );
 }
 
 void TestSage::testInvalidSyntax()
 {
     Cantor::Expression* e=evalExp( QLatin1String("2+2*(") );
 
     QVERIFY( e!=nullptr );
     QVERIFY( e->errorMessage()== QLatin1String("Syntax Error") );
 }
 
 void TestSage::testNoOutput()
 {
     Cantor::Expression* e=evalExp(  QLatin1String("f(x)=x^2+3*x+2\nf(0)") );
 
     QVERIFY( e!=nullptr );
     QVERIFY( e->result() != nullptr );
     QCOMPARE( e->result()->toHtml(), QLatin1String("2") );
 }
 
 
 QTEST_MAIN( TestSage )