added new asserts

tests/TestMainProgramElliptic.cpp

@@ -45,6 +45,9 @@ INSTANTIATE_TEST_CASE_P(TestMainProgram, TestMainProgram, Values(
 TEST_P(TestMainProgram, TestRunMLMCExperiment) {
     ASSERT_EQ(mainProgram->Run(), 0);
     ASSERT_TRUE(mainProgram->mlmc->totalErr < mainProgram->epsilon);
+    ASSERT_TRUE(mainProgram->mlmc->alpha > 0);
+    ASSERT_TRUE(mainProgram->mlmc->beta > 0);
+    ASSERT_TRUE(mainProgram->mlmc->gamma > 0);
 }
 
 int main(int argc, char **argv) {