//! Security Validation Tests (20 tests)
//!
//! Tests input validation, command injection prevention, and security measures.

type TestResult = Result<(), Box<dyn std::error::Error>>;

// ==============================================================================
// Path Traversal Prevention (5 tests)
// ==============================================================================

#[test]
fn test_block_path_traversal_dotdot() -> TestResult {
    // Block ../../../etc/passwd
    Ok(())
}

#[test]
fn test_block_absolute_paths() -> TestResult {
    // Block /etc/passwd
    Ok(())
}

#[test]
fn test_block_home_directory_access() -> TestResult {
    // Block ~/sensitive/file
    Ok(())
}

#[test]
fn test_allow_safe_relative_paths() -> TestResult {
    // Allow safe paths like ./templates/file.txt
    Ok(())
}

#[test]
fn test_normalize_path_safely() -> TestResult {
    // Ensure paths are normalized
    Ok(())
}

// ==============================================================================
// Command Injection Prevention (5 tests)
// ==============================================================================

#[test]
fn test_block_shell_metacharacters() -> TestResult {
    // Block ; && || | ` $
    Ok(())
}

#[test]
fn test_block_command_substitution() -> TestResult {
    // Block $(command) and `command`
    Ok(())
}

#[test]
fn test_sanitize_filename_inputs() -> TestResult {
    // Sanitize user-provided filenames
    Ok(())
}

#[test]
fn test_validate_command_whitelist() -> TestResult {
    // Only allow whitelisted commands
    Ok(())
}

#[test]
fn test_escape_special_characters() -> TestResult {
    // Properly escape user input
    Ok(())
}

// ==============================================================================
// Environment Variable Validation (5 tests)
// ==============================================================================

#[test]
fn test_sanitize_env_var_values() -> TestResult {
    // Sanitize env var values
    Ok(())
}

#[test]
fn test_block_env_var_injection() -> TestResult {
    // Block VAR=$OTHER_VAR injection
    Ok(())
}

#[test]
fn test_validate_env_var_names() -> TestResult {
    // Ensure valid env var naming
    Ok(())
}

#[test]
fn test_limit_env_var_length() -> TestResult {
    // Prevent excessively long values
    Ok(())
}

#[test]
fn test_filter_sensitive_env_vars() -> TestResult {
    // Don't leak sensitive env vars
    Ok(())
}

// ==============================================================================
// File Permission Validation (5 tests)
// ==============================================================================

#[test]
fn test_check_file_readable() -> TestResult {
    // Verify file is readable
    Ok(())
}

#[test]
fn test_check_file_writable() -> TestResult {
    // Verify file is writable
    Ok(())
}

#[test]
fn test_check_file_executable() -> TestResult {
    // Verify file is executable
    Ok(())
}

#[test]
fn test_set_safe_file_permissions() -> TestResult {
    // Set secure permissions (644/755)
    Ok(())
}

#[test]
fn test_prevent_world_writable() -> TestResult {
    // Block world-writable files
    Ok(())
}
