You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: storage.rs
    path of file: ./repos/atm-cli/src
    
    the code of the file until where you have to start completion: // storage.rs
//
// Copyright (c) 2020 All The Music, LLC
//
// This work is licensed under the Creative Commons Attribution 4.0 International License.
// To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ or send
// a letter to Creative Commons, PO Box 
    
    fn test_melody_length_match() {
        let path_generator = PartitionPathGenerator::new(4, 12, 4096, 2).unwrap();
        let mfile = libatm::MIDIFile::new(
            "C:4,D:5,G:7".parse::<libatm::MIDINoteVec>().unwrap(),
            libatm::MIDIFormat::Format0,
            1,
            1,
        );
        // Fails because melody isn't 4 notes
        path_generator.gen_path_for_file(&mfile).unwrap();
    }