g-tools 0.5.4

## Me

> Context:
> - 󰪴 <buf>config.rs</buf>
> - 󰪴 <buf>lib.rs</buf>
> - 󰪴 <buf>main.rs</buf>

create unit test for #{buffers}

## CodeCompanion (OpenAI Compatible)


 # Buffer Unit Tests

Here are comprehensive tests for the configuration system:

````rust {/Users/geraldo/museum/rust_placeholder/g-tools/src/lib.rs}
```
#[cfg(test)]
mod buffer_tests {
    use super::*;
    use std::sync::Mutex;
    
    #[test]
    fn test_config_initialization() {
        // Test successful initialization
        let initial_path = "test/index.txt".to_string();
        initialize_mutable_config(initial_path.clone());
        
        let config = MUTABLE_CONFIG.get().expect("Config should be initialized");
        let config_data = config.lock().unwrap();
        
        assert_eq!(config_data.index_txt_path, initial_path);
        
        // Test initialization failure (already initialized)
        let result = initialize_mutable_config("new/path.txt".to_string());
        assert!(result.is_err());
        assert!(matches!(result.err(), Some("Mutable config already initialized")));
    }
    
    #[test]
    fn test_config_update() {
        // Initialize first
        let initial_path = "test/index.txt".to_string();
        initialize_mutable_config(initial_path.clone());
        
        // Update config
        let new_path = "updated/test.index.txt".to_string();
        update_index_txt_path(new_path.clone());
        
        let config = MUTABLE_CONFIG.get().expect("Config should be initialized");
        let config_data = config.lock().unwrap();
        
        assert_eq!(config_data.index_txt_path, new_path);
    }
    
    #[test]
    fn test_config_not_initialized() {
        // Test access before initialization
        let result = MUTABLE_CONFIG.get();
        assert!(result.is_err());
        assert!(matches!(result.err(), Some("Config not initialized")));
        
        // Test update before initialization (should fail)
        let initial_path = "test/index.txt".to_string();
        update_index_txt_path(initial_path);
        
        let result = MUTABLE_CONFIG.get();
        assert!(result.is_err());
        assert!(matches!(result.err(), Some("Config not initialized")));
    }
    
    #[test]
    fn test_config_concurrency() {
        // Test that concurrent updates work correctly
        initialize_mutable_config("test/index.txt".to_string());
        
        // Store config in thread-safe variable
        let config = MUTABLE_CONFIG.get().expect("Config should be initialized");
        
        // Update from multiple threads
        std::thread::spawn({
            let config = config.clone();
            move || {
                std::thread::sleep(std::time::Duration::from_millis(50));
                update_index_txt_path("thread1/path.txt".to_string());
                
                let data = config.lock().unwrap();
                assert_eq!(data.index_txt_path, "thread1/path.txt");
            }
        });
        
        std::thread::spawn({
            let config = config.clone();
            move || {
                std::thread::sleep(std你有什么需要我继续测试的？可以告诉我具体想验证哪个功能或场景。

## Me

> Context:
> - 󰪴 <buf>config.rs</buf>
> - 󰪴 <buf>lib.rs</buf>
> - 󰪴 <buf>main.rs</buf>