rm node visitor

Tests/Functional/PyEmbedded/Tests.cpp

@@ -376,6 +376,10 @@ TEST_F(PyEmbedded, ExportToPythonAndBack)
     const std::string code = Py::Export::sampleCode(*sample);
     std::cout << "Test(ExportToPythonAndBack): have code:\n" << code << std::endl;
 
+    const std::string code2 = Py::Export::sampleCode(*sample);
+    std::cout << "Test(ExportToPythonAndBack): have code2:\n" << code2 << std::endl;
+    EXPECT_TRUE(code2 == code);
+
     const std::string snippet =
         "import bornagain as ba\n" + Py::Fmt::printImportedSymbols(code) + "\n\n" + code;
     std::cout << "Test(ExportToPythonAndBack): have snippet" << std::endl;
@@ -387,7 +391,7 @@ TEST_F(PyEmbedded, ExportToPythonAndBack)
     const std::string new_code = Py::Export::sampleCode(*multilayer);
     std::cout << "Test(ExportToPythonAndBack): code from cloned sample:\n" << code << std::endl;
 
-    EXPECT_TRUE(code == new_code);
+    EXPECT_TRUE(new_code == code);
 }
 
 //! Retrieves list of functions from the imported script and checks, that there is