- Missing quotation marks in error message

DHParser/testing.py

@@ -389,7 +389,7 @@ def grammar_unit(test_unit, parser_factory, transformer_factory, report=True, ve
             except UnknownParserError as upe:
                 node = Node(ZOMBIE_PARSER, "").init_pos(0)
                 cst = RootNode(node).new_error(node, str(upe))
-                errata.append('Unknown parser {} in fail test {}!'.format(parser_name, test_name))
+                errata.append('Unknown parser "{}" in fail test "{}"!'.format(parser_name, test_name))
                 tests.setdefault('__err__', {})[test_name] = errata[-1]
             if not is_error(cst.error_flag):
                 errata.append('Fail test "%s" for parser "%s" yields match instead of '