use egml_core::model::base::{Gml, Id};
use egml_core::model::geometry::{DirectPosition, LinearRing};
use egml_transform::triangulate::triangulate_linear_ring;

#[test]
fn triangulate() {
    let gml = Gml::new(Id::try_from("test_id").expect("must work"));
    let linear_ring = LinearRing::new(
        gml,
        vec![
            DirectPosition::new(0.0, 0.0, 0.0).unwrap(),
            DirectPosition::new(1.0, 0.0, 0.0).unwrap(),
            DirectPosition::new(1.0, 1.0, 0.0).unwrap(),
            DirectPosition::new(0.0, 1.0, 0.0).unwrap(),
        ],
    )
    .unwrap();

    let result = triangulate_linear_ring(&linear_ring).unwrap();

    assert_eq!(result.number_of_patches(), 2);
    assert!(result.patches()[0].area() > 0.0);
    assert!(result.patches()[1].area() > 0.0);
}