try (FileWriter writer = new FileWriter(lmhostsFile)) {
            writer.write("# This is a comment\n");
            writer.write("192.168.1.100 HOST1\n");
            writer.write("#192.168.1.101 COMMENTED_HOST\n");
            writer.write("192.168.1.102 HOST2\n");
        }

        when(mockConfig.getLmHostsFileName()).thenReturn(lmhostsFile.getAbsolutePath());

        // Use getByName to trigger populate