// SC2243: Prefer explicit -n/-z for string tests (placeholder - style recommendation)
#[allow(unused_imports)]
use crate::linter::LintResult;

pub fn check(_source: &str) -> LintResult {
    // Placeholder: Style recommendation to use explicit -n or -z
    // Would need to detect implicit string tests like [ "$var" ] or [ ! "$var" ]
    // Implementation deferred pending configuration system for style rules
    LintResult::new()
}

#[cfg(test)]
mod tests {
    use super::*;
    #[test]
    fn test_sc2243_placeholder() {
        let code = r#"[ "$var" ]"#;
        let result = check(code);
        assert_eq!(result.diagnostics.len(), 0); // Placeholder
    }
    #[test]
    fn test_sc2243_explicit_n_placeholder() {
        let code = r#"[ -n "$var" ]"#;
        let result = check(code);
        assert_eq!(result.diagnostics.len(), 0); // Placeholder
    }
    #[test]
    fn test_sc2243_comment_placeholder() {
        let code = "# comment";
        let result = check(code);
        assert_eq!(result.diagnostics.len(), 0);
    }
    #[test]
    fn test_sc2243_no_code_placeholder() {
        let code = "";
        let result = check(code);
        assert_eq!(result.diagnostics.len(), 0);
    }
    #[test]
    fn test_sc2243_simple_placeholder() {
        let code = "echo test";
        let result = check(code);
        assert_eq!(result.diagnostics.len(), 0);
    }
    #[test]
    fn test_sc2243_negated_placeholder() {
        let code = r#"[ ! "$var" ]"#;
        let result = check(code);
        assert_eq!(result.diagnostics.len(), 0); // Placeholder
    }
    #[test]
    fn test_sc2243_explicit_z_placeholder() {
        let code = r#"[ -z "$var" ]"#;
        let result = check(code);
        assert_eq!(result.diagnostics.len(), 0); // Placeholder
    }
    #[test]
    fn test_sc2243_double_bracket_placeholder() {
        let code = r#"[[ $var ]]"#;
        let result = check(code);
        assert_eq!(result.diagnostics.len(), 0); // Placeholder
    }
    #[test]
    fn test_sc2243_if_placeholder() {
        let code = r#"if [ "$x" ]; then"#;
        let result = check(code);
        assert_eq!(result.diagnostics.len(), 0); // Placeholder
    }
    #[test]
    fn test_sc2243_while_placeholder() {
        let code = r#"while [ "$running" ]; do"#;
        let result = check(code);
        assert_eq!(result.diagnostics.len(), 0); // Placeholder
    }
}
