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 help_toggle_tests {
    use super::*;
    
    /// Contract test for help toggle key '?'
    /// 
    /// From interactive_interface.md:
    /// Input: KeyEvent { code: Char('?'), modifiers: NONE }
    /// Precondition: any mode
    /// Postcondition:
    ///   - help_visible = !help_visible
    ///   - Help overlay shows/hides keyboard shortcuts
    #[test]
    fn test_help_toggle_key_shows_help() {
        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!(!interactive_mode.help_visible);
        // 
        // let result = interactive_mode.handle_key_event(key_event);
        // 
        // assert!(result.is_ok());
        // assert!(interactive_mode.help_visible);
        // assert!(interactive_mode.should_show_help_overlay());
        
        // 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_help_toggle_key_hides_help() {
        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.help_visible = true; // Start with help visible
        // 
        // let result = interactive_mode.handle_key_event(key_event);
        // 
        // assert!(result.is_ok());
        // assert!(!interactive_mode.help_visible);
        // assert!(!interactive_mode.should_show_help_overlay());
        
        // 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_help_toggle_works_in_any_mode() {
        // Contract: Precondition: any mode - help should work in all application modes
        
        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 ApplicationMode are implemented
        // let modes = vec![
        //     ApplicationMode::Configuration,
        //     ApplicationMode::Racing,
        //     ApplicationMode::Paused,
        //     ApplicationMode::Complete,
        // ];
        // 
        // for mode in modes {
        //     let mut interactive_mode = InteractiveMode::new();
        //     interactive_mode.current_mode = mode;
        //     assert!(!interactive_mode.help_visible);
        //     
        //     let result = interactive_mode.handle_key_event(key_event);
        //     
        //     assert!(result.is_ok(), "Help should work in {:?} mode", mode);
        //     assert!(interactive_mode.help_visible, "Help should be visible in {:?} mode", mode);
        // }
        
        // For TDD: This test must fail until implementation exists
        panic!("InteractiveMode and ApplicationMode not yet implemented - this test should fail until T024 is complete");
    }
    
    #[test]
    fn test_help_overlay_shows_keyboard_shortcuts() {
        // Contract: Help overlay shows/hides keyboard shortcuts
        
        // TODO: Uncomment when InteractiveMode and help system are implemented
        // let mut interactive_mode = InteractiveMode::new();
        // 
        // // Toggle help on
        // let key_event = KeyEvent {
        //     code: KeyCode::Char('?'),
        //     modifiers: KeyModifiers::NONE,
        //     kind: crossterm::event::KeyEventKind::Press,
        //     state: crossterm::event::KeyEventState::NONE,
        // };
        // interactive_mode.handle_key_event(key_event);
        // 
        // let help_content = interactive_mode.get_help_overlay_content();
        // 
        // // Should contain information about all keyboard shortcuts
        // assert!(help_content.contains("k - Array size configuration"));
        // assert!(help_content.contains("b - Distribution configuration"));
        // assert!(help_content.contains("f - Fairness mode configuration"));
        // assert!(help_content.contains("v - Switch array visualization"));
        // assert!(help_content.contains("Space - Start/Pause race"));
        // assert!(help_content.contains("? - Toggle help"));
        // assert!(help_content.contains("Arrow keys - Navigate menus"));
        // assert!(help_content.contains("Enter - Confirm selection"));
        // assert!(help_content.contains("q - Quit"));
        
        // For TDD: This test must fail until implementation exists
        panic!("InteractiveMode and help system not yet implemented - this test should fail until T024 is complete");
    }
    
    #[test]
    fn test_help_toggle_multiple_times() {
        // Test that help toggle works correctly with multiple presses
        
        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!(!interactive_mode.help_visible);
        // 
        // // Toggle help on
        // interactive_mode.handle_key_event(key_event);
        // assert!(interactive_mode.help_visible);
        // 
        // // Toggle help off
        // interactive_mode.handle_key_event(key_event);
        // assert!(!interactive_mode.help_visible);
        // 
        // // Toggle help on again
        // interactive_mode.handle_key_event(key_event);
        // assert!(interactive_mode.help_visible);
        
        // For TDD: This test must fail until implementation exists
        panic!("InteractiveMode not yet implemented - this test should fail until T024 is complete");
    }
}