Improve test

TESTS/TEST_LIST_FUNCTION/main.cpp

@@ -15,6 +15,7 @@ bool testListFunction(){
 	std::string libraryFile(TEST_LIBRARY_FILE);
 	
 	std::vector<std::string> vecFunction;
+	phoenix_listLibrarySymbol(vecFunction, "");
 	phoenix_listLibrarySymbol(vecFunction, "someInexistingFile.so");
 	phoenix_listLibrarySymbol(vecFunction, libraryFile);
 	

TESTS/TEST_MANGLE_FUNCTION/main.cpp

@@ -17,6 +17,8 @@ bool testMangleFunction(){
 	std::cout << "testMangleFunction : mangeling of '"<<functionPrototype<<"' = '"<<mangleFunction<<"'" << std::endl;
 	std::string expectedMangle("_Z10print_archRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE");
 	bool b(expectedMangle == mangleFunction);
+	
+	b &= phoenix_mangleFunction(functionPrototype, "", "someInexistingCompiler") == "";
 	std::cout << "testMangleFunction : b = " << b << std::endl;
 	return b;
 }