#[cfg(test)]
mod interaction_tests {
    // Tests for user interactions and state management
    
    #[test]
    fn select_open_close_state_logic() {
        // Test select open/close state management
        
        #[derive(Debug, Clone, PartialEq)]
        enum SelectState {
            Closed,
            Open,
        }
        
        impl SelectState {
            fn toggle(&self) -> Self {
                match self {
                    SelectState::Closed => SelectState::Open,
                    SelectState::Open => SelectState::Closed,
                }
            }
            
            fn is_open(&self) -> bool {
                matches!(self, SelectState::Open)
            }
            
            fn is_closed(&self) -> bool {
                matches!(self, SelectState::Closed)
            }
        }
        
        let mut state = SelectState::Closed;
        assert!(state.is_closed());
        assert!(!state.is_open());
        
        state = state.toggle();
        assert!(state.is_open());
        assert!(!state.is_closed());
        
        state = state.toggle();
        assert!(state.is_closed());
        assert!(!state.is_open());
    }
    
    #[test]
    fn select_value_change_logic() {
        // Test value selection and change logic
        
        #[derive(Debug, Clone, PartialEq)]
        struct SelectValue {
            value: Option<String>,
            text: Option<String>,
        }
        
        impl SelectValue {
            fn new() -> Self {
                Self { value: None, text: None }
            }
            
            fn set_value(&mut self, value: String, text: String) {
                self.value = Some(value);
                self.text = Some(text);
            }
            
            fn clear(&mut self) {
                self.value = None;
                self.text = None;
            }
            
            fn is_selected(&self) -> bool {
                self.value.is_some()
            }
        }
        
        let mut select_value = SelectValue::new();
        assert!(!select_value.is_selected());
        assert!(select_value.value.is_none());
        
        select_value.set_value("option1".to_string(), "Option 1".to_string());
        assert!(select_value.is_selected());
        assert_eq!(select_value.value, Some("option1".to_string()));
        assert_eq!(select_value.text, Some("Option 1".to_string()));
        
        select_value.clear();
        assert!(!select_value.is_selected());
        assert!(select_value.value.is_none());
    }
    
    #[test]
    fn select_keyboard_navigation_logic() {
        // Test keyboard navigation through options
        
        struct SelectOptions {
            options: Vec<String>,
            current_index: Option<usize>,
        }
        
        impl SelectOptions {
            fn new(options: Vec<String>) -> Self {
                Self {
                    options,
                    current_index: None,
                }
            }
            
            fn move_next(&mut self) {
                match self.current_index {
                    None => {
                        if !self.options.is_empty() {
                            self.current_index = Some(0);
                        }
                    }
                    Some(index) => {
                        if index < self.options.len() - 1 {
                            self.current_index = Some(index + 1);
                        }
                    }
                }
            }
            
            fn move_previous(&mut self) {
                match self.current_index {
                    None => {
                        if !self.options.is_empty() {
                            self.current_index = Some(self.options.len() - 1);
                        }
                    }
                    Some(index) => {
                        if index > 0 {
                            self.current_index = Some(index - 1);
                        }
                    }
                }
            }
            
            fn get_current_value(&self) -> Option<&String> {
                self.current_index.and_then(|i| self.options.get(i))
            }
        }
        
        let options = vec![
            "Option 1".to_string(),
            "Option 2".to_string(), 
            "Option 3".to_string(),
        ];
        
        let mut select_options = SelectOptions::new(options);
        
        // Test initial state
        assert!(select_options.current_index.is_none());
        assert!(select_options.get_current_value().is_none());
        
        // Test moving next
        select_options.move_next();
        assert_eq!(select_options.current_index, Some(0));
        assert_eq!(select_options.get_current_value(), Some(&"Option 1".to_string()));
        
        select_options.move_next();
        assert_eq!(select_options.current_index, Some(1));
        assert_eq!(select_options.get_current_value(), Some(&"Option 2".to_string()));
        
        // Test moving previous
        select_options.move_previous();
        assert_eq!(select_options.current_index, Some(0));
        assert_eq!(select_options.get_current_value(), Some(&"Option 1".to_string()));
    }
    
    #[test]
    fn select_disabled_state_logic() {
        // Test disabled state handling
        
        struct SelectItem {
            value: String,
            text: String,
            disabled: bool,
        }
        
        impl SelectItem {
            fn new(value: String, text: String, disabled: bool) -> Self {
                Self { value, text, disabled }
            }
            
            fn is_selectable(&self) -> bool {
                !self.disabled
            }
            
            fn can_focus(&self) -> bool {
                !self.disabled
            }
        }
        
        let enabled_item = SelectItem::new(
            "option1".to_string(),
            "Option 1".to_string(),
            false,
        );
        
        let disabled_item = SelectItem::new(
            "option2".to_string(),
            "Option 2".to_string(),
            true,
        );
        
        assert!(enabled_item.is_selectable());
        assert!(enabled_item.can_focus());
        
        assert!(!disabled_item.is_selectable());
        assert!(!disabled_item.can_focus());
    }
    
    #[test]
    fn select_search_filtering_logic() {
        // Test search/filter functionality
        
        struct SearchableSelect {
            options: Vec<String>,
            search_term: String,
        }
        
        impl SearchableSelect {
            fn new(options: Vec<String>) -> Self {
                Self {
                    options,
                    search_term: String::new(),
                }
            }
            
            fn set_search_term(&mut self, term: String) {
                self.search_term = term;
            }
            
            fn get_filtered_options(&self) -> Vec<&String> {
                if self.search_term.is_empty() {
                    self.options.iter().collect()
                } else {
                    self.options
                        .iter()
                        .filter(|option| {
                            option.to_lowercase().contains(&self.search_term.to_lowercase())
                        })
                        .collect()
                }
            }
        }
        
        let options = vec![
            "Apple".to_string(),
            "Banana".to_string(),
            "Cherry".to_string(),
            "Date".to_string(),
        ];
        
        let mut searchable_select = SearchableSelect::new(options);
        
        // Test no search term
        let all_options = searchable_select.get_filtered_options();
        assert_eq!(all_options.len(), 4);
        
        // Test search filtering
        searchable_select.set_search_term("a".to_string());
        let filtered_options = searchable_select.get_filtered_options();
        assert_eq!(filtered_options.len(), 3); // Apple, Banana, Date
        
        searchable_select.set_search_term("ch".to_string());
        let more_filtered = searchable_select.get_filtered_options();
        assert_eq!(more_filtered.len(), 1); // Cherry
        assert_eq!(more_filtered[0], &"Cherry".to_string());
    }
    
    #[test]
    fn select_validation_logic() {
        // Test form validation logic
        
        struct ValidatedSelect {
            value: Option<String>,
            required: bool,
            validator: Option<fn(&str) -> bool>,
        }
        
        impl ValidatedSelect {
            fn new(required: bool) -> Self {
                Self {
                    value: None,
                    required,
                    validator: None,
                }
            }
            
            fn set_validator<F>(&mut self, validator: F) 
            where
                F: Fn(&str) -> bool + 'static,
            {
                // In real implementation, this would store the closure properly
                // For testing, we'll use a simple approach
            }
            
            fn set_value(&mut self, value: Option<String>) {
                self.value = value;
            }
            
            fn is_valid(&self) -> bool {
                if self.required && self.value.is_none() {
                    return false;
                }
                
                if let Some(value) = &self.value {
                    if let Some(validator) = self.validator {
                        return validator(value);
                    }
                }
                
                true
            }
            
            fn get_error(&self) -> Option<String> {
                if !self.is_valid() {
                    if self.required && self.value.is_none() {
                        return Some("This field is required".to_string());
                    }
                }
                None
            }
        }
        
        let mut required_select = ValidatedSelect::new(true);
        assert!(!required_select.is_valid());
        assert!(required_select.get_error().is_some());
        
        required_select.set_value(Some("option1".to_string()));
        assert!(required_select.is_valid());
        assert!(required_select.get_error().is_none());
        
        let mut optional_select = ValidatedSelect::new(false);
        assert!(optional_select.is_valid());
        assert!(optional_select.get_error().is_none());
    }
    
    #[test]
    fn select_event_handling_logic() {
        // Test event handling and callbacks
        
        struct SelectEventHandler {
            on_change_called: bool,
            on_open_called: bool,
            on_close_called: bool,
            last_value: Option<String>,
        }
        
        impl SelectEventHandler {
            fn new() -> Self {
                Self {
                    on_change_called: false,
                    on_open_called: false,
                    on_close_called: false,
                    last_value: None,
                }
            }
            
            fn on_change(&mut self, value: String) {
                self.on_change_called = true;
                self.last_value = Some(value);
            }
            
            fn on_open(&mut self) {
                self.on_open_called = true;
            }
            
            fn on_close(&mut self) {
                self.on_close_called = true;
            }
        }
        
        let mut event_handler = SelectEventHandler::new();
        
        // Test initial state
        assert!(!event_handler.on_change_called);
        assert!(!event_handler.on_open_called);
        assert!(!event_handler.on_close_called);
        assert!(event_handler.last_value.is_none());
        
        // Test event triggering
        event_handler.on_open();
        assert!(event_handler.on_open_called);
        
        event_handler.on_change("option1".to_string());
        assert!(event_handler.on_change_called);
        assert_eq!(event_handler.last_value, Some("option1".to_string()));
        
        event_handler.on_close();
        assert!(event_handler.on_close_called);
    }
}
