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 race_control_tests {
    use super::*;
    
    /// Contract test for race control space key
    /// 
    /// From interactive_interface.md:
    /// Input: KeyEvent { code: Char(' '), modifiers: NONE }
    /// Preconditions & Postconditions:
    ///   - Configuration mode → Racing mode (validates config first)
    ///   - Racing mode → Paused mode  
    ///   - Paused mode → Racing mode
    ///   - Complete mode → Configuration mode (resets for new race)
    #[test]
    fn test_space_key_configuration_to_racing() {
        // Contract: Configuration mode → Racing mode (validates config first)
        
        let key_event = KeyEvent {
            code: KeyCode::Char(' '),
            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);
        // 
        // // Ensure config is valid
        // let mut config = interactive_mode.get_current_config();
        // config.array_size = 100;
        // config.distribution = DistributionType::Shuffled;
        // config.fairness_mode = FairnessMode::Walltime;
        // interactive_mode.set_config(config);
        // 
        // let result = interactive_mode.handle_key_event(key_event);
        // 
        // assert!(result.is_ok());
        // assert_eq!(interactive_mode.current_mode, ApplicationMode::Racing);
        // assert!(interactive_mode.is_race_active());
        
        // 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_space_key_racing_to_paused() {
        // Contract: Racing mode → Paused mode
        
        let key_event = KeyEvent {
            code: KeyCode::Char(' '),
            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);
        // 
        // assert!(result.is_ok());
        // assert_eq!(interactive_mode.current_mode, ApplicationMode::Paused);
        // assert!(interactive_mode.is_race_paused());
        
        // 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_space_key_paused_to_racing() {
        // Contract: Paused mode → Racing mode
        
        let key_event = KeyEvent {
            code: KeyCode::Char(' '),
            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::Paused;
        // 
        // let result = interactive_mode.handle_key_event(key_event);
        // 
        // assert!(result.is_ok());
        // assert_eq!(interactive_mode.current_mode, ApplicationMode::Racing);
        // assert!(interactive_mode.is_race_active());
        
        // 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_space_key_complete_to_configuration() {
        // Contract: Complete mode → Configuration mode (resets for new race)
        
        let key_event = KeyEvent {
            code: KeyCode::Char(' '),
            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::Complete;
        // 
        // let result = interactive_mode.handle_key_event(key_event);
        // 
        // assert!(result.is_ok());
        // assert_eq!(interactive_mode.current_mode, ApplicationMode::Configuration);
        // assert!(interactive_mode.is_race_reset());
        
        // 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_space_key_validates_config_before_racing() {
        // Contract: Configuration mode → Racing mode (validates config first)
        
        let key_event = KeyEvent {
            code: KeyCode::Char(' '),
            modifiers: KeyModifiers::NONE,
            kind: crossterm::event::KeyEventKind::Press,
            state: crossterm::event::KeyEventState::NONE,
        };
        
        // TODO: Uncomment when InteractiveMode and ConfigurationState are implemented
        // let mut interactive_mode = InteractiveMode::new();
        // assert_eq!(interactive_mode.current_mode, ApplicationMode::Configuration);
        // 
        // // Set invalid configuration
        // let mut config = interactive_mode.get_current_config();
        // config.array_size = 0; // Invalid - should be >= 10
        // interactive_mode.set_config(config);
        // 
        // let result = interactive_mode.handle_key_event(key_event);
        // 
        // // Should fail validation and remain in Configuration mode
        // assert!(result.is_err());
        // assert_eq!(interactive_mode.current_mode, ApplicationMode::Configuration);
        
        // For TDD: This test must fail until implementation exists
        panic!("InteractiveMode and ConfigurationState not yet implemented - this test should fail until T023 and T024 are complete");
    }
    
    #[test]
    fn test_space_key_preserves_progress_on_pause() {
        // Contract: Racing → Paused should preserve algorithm execution state
        
        let key_event = KeyEvent {
            code: KeyCode::Char(' '),
            modifiers: KeyModifiers::NONE,
            kind: crossterm::event::KeyEventKind::Press,
            state: crossterm::event::KeyEventState::NONE,
        };
        
        // TODO: Uncomment when InteractiveMode and algorithm management are implemented
        // let mut interactive_mode = InteractiveMode::new();
        // interactive_mode.current_mode = ApplicationMode::Racing;
        // 
        // // Get current algorithm progress
        // let progress_before = interactive_mode.get_algorithm_progress();
        // 
        // // Pause the race
        // let result = interactive_mode.handle_key_event(key_event);
        // 
        // assert!(result.is_ok());
        // assert_eq!(interactive_mode.current_mode, ApplicationMode::Paused);
        // 
        // // Progress should be preserved
        // let progress_after = interactive_mode.get_algorithm_progress();
        // assert_eq!(progress_before, progress_after);
        
        // For TDD: This test must fail until implementation exists
        panic!("InteractiveMode and algorithm management not yet implemented - this test should fail until T024 is complete");
    }
}