fixed test cases, due to changed CFL computation

code/tests/test_cases.cpp

@@ -55,7 +55,7 @@ TEST_CASE( "linesource_SN", "[testcases]" ) {
     solver->Save();
 
     auto test      = readVTKFile( "../result/rtsn_test_linesource.vtk" );
-    auto reference = readVTKFile( "../tests/input/linesource_reference.vtk" );
+    auto reference = readVTKFile( "../tests/input/linesource_SN_reference.vtk" );
 
     double eps = 1e-3;
     REQUIRE( test.size() == reference.size() );
@@ -73,7 +73,7 @@ TEST_CASE( "linesource_PN", "[testcases]" ) {
     solver->Save();
 
     auto test      = readVTKFile( "../result/rtsn_test_linesource_PN.vtk" );
-    auto reference = readVTKFile( "../tests/input/rtsn_test_linesource_PN_reference.vtk" );
+    auto reference = readVTKFile( "../tests/input/linesource_PN_reference.vtk" );
 
     double eps = 1e-3;
     REQUIRE( test.size() == reference.size() );