//! `#[derive(ParamSummary)]` 기본 동작 검증.

use cimery_macros::ParamSummary;

#[derive(ParamSummary)]
#[allow(dead_code)]
struct GirderParams {
    pub total_height:     f64,
    pub top_flange_width: f64,
    pub web_thickness:    f64,
}

#[test]
fn param_count_matches_field_count() {
    assert_eq!(GirderParams::PARAM_COUNT, 3);
}

#[test]
fn param_names_in_declaration_order() {
    assert_eq!(
        GirderParams::PARAM_NAMES,
        &["total_height", "top_flange_width", "web_thickness"],
    );
}

#[derive(ParamSummary)]
#[allow(dead_code)]
struct Empty {}

#[test]
fn empty_struct_handled() {
    assert_eq!(Empty::PARAM_COUNT, 0);
    assert_eq!(Empty::PARAM_NAMES, &[] as &[&str]);
}