sorting-race 0.2.0

Terminal-based sorting algorithm race visualization tool with real-time metrics
Documentation
use crossterm::event::{KeyCode, KeyEvent, KeyModifiers};

#[cfg(test)]
mod distribution_config_tests {
    use super::*;
    
    /// Contract test for distribution configuration key 'b'
    /// 
    /// From interactive_interface.md:
    /// Input: KeyEvent { code: Char('b'), modifiers: NONE }
    /// Precondition: current_mode != Racing
    /// Postcondition:
    ///   - config_focus = Some(Distribution)  
    ///   - UI shows distribution options [Shuffled, Reversed, NearlySorted, FewUnique]
    ///   - Arrow keys cycle through options
    #[test]
    fn test_distribution_key_activates_menu() {
        // This test will fail until interactive configuration is implemented
        
        let key_event = KeyEvent {
            code: KeyCode::Char('b'),
            modifiers: KeyModifiers::NONE,
            kind: crossterm::event::KeyEventKind::Press,
            state: crossterm::event::KeyEventState::NONE,
        };
        
        // TODO: Uncomment when InteractiveMode is implemented
        // let mut interactive_mode = InteractiveMode::new();
        // assert_eq!(interactive_mode.current_mode, ApplicationMode::Configuration);
        // 
        // let result = interactive_mode.handle_key_event(key_event);
        // 
        // assert!(result.is_ok());
        // assert_eq!(interactive_mode.config_focus, Some(ConfigurationField::Distribution));
        // assert!(interactive_mode.is_menu_visible());
        
        // For TDD: This test must fail until implementation exists
        panic!("InteractiveMode not yet implemented - this test should fail until T024 is complete");
    }
    
    #[test]
    fn test_distribution_options_available() {
        // Contract: UI shows distribution options [Shuffled, Reversed, NearlySorted, FewUnique]
        
        // TODO: Uncomment when ConfigurationState and DistributionType are implemented
        // let config_state = ConfigurationState::new();
        // let available_distributions = config_state.get_available_distributions();
        // 
        // assert_eq!(available_distributions.len(), 4);
        // assert!(available_distributions.contains(&DistributionType::Shuffled));
        // assert!(available_distributions.contains(&DistributionType::Reversed));
        // assert!(available_distributions.contains(&DistributionType::NearlySorted));
        // assert!(available_distributions.contains(&DistributionType::FewUnique));
        
        // For TDD: This test must fail until implementation exists
        panic!("ConfigurationState and DistributionType not yet implemented - this test should fail until T023 is complete");
    }
    
    #[test]
    fn test_distribution_key_blocked_during_racing() {
        // Contract: Precondition: current_mode != Racing
        
        let key_event = KeyEvent {
            code: KeyCode::Char('b'),
            modifiers: KeyModifiers::NONE,
            kind: crossterm::event::KeyEventKind::Press,
            state: crossterm::event::KeyEventState::NONE,
        };
        
        // TODO: Uncomment when InteractiveMode is implemented
        // let mut interactive_mode = InteractiveMode::new();
        // interactive_mode.current_mode = ApplicationMode::Racing;
        // 
        // let result = interactive_mode.handle_key_event(key_event);
        // 
        // // Should not change config_focus when racing
        // assert_eq!(interactive_mode.config_focus, None);
        // assert_eq!(interactive_mode.current_mode, ApplicationMode::Racing);
        
        // For TDD: This test must fail until implementation exists
        panic!("InteractiveMode not yet implemented - this test should fail until T024 is complete");
    }
    
    #[test]
    fn test_distribution_arrow_key_cycling() {
        // Contract: Arrow keys cycle through options
        
        let up_key = KeyEvent {
            code: KeyCode::Up,
            modifiers: KeyModifiers::NONE,
            kind: crossterm::event::KeyEventKind::Press,
            state: crossterm::event::KeyEventState::NONE,
        };
        
        let down_key = KeyEvent {
            code: KeyCode::Down,
            modifiers: KeyModifiers::NONE,
            kind: crossterm::event::KeyEventKind::Press,
            state: crossterm::event::KeyEventState::NONE,
        };
        
        // TODO: Uncomment when InteractiveMode is implemented
        // let mut interactive_mode = InteractiveMode::new();
        // interactive_mode.config_focus = Some(ConfigurationField::Distribution);
        // 
        // // Start with Shuffled (default)
        // assert_eq!(interactive_mode.get_current_config().distribution, DistributionType::Shuffled);
        // 
        // // Arrow down should cycle to next
        // interactive_mode.handle_key_event(down_key);
        // assert_eq!(interactive_mode.get_current_config().distribution, DistributionType::Reversed);
        // 
        // // Arrow up should cycle back
        // interactive_mode.handle_key_event(up_key);
        // assert_eq!(interactive_mode.get_current_config().distribution, DistributionType::Shuffled);
        
        // For TDD: This test must fail until implementation exists
        panic!("InteractiveMode not yet implemented - this test should fail until T024 is complete");
    }
}