use wasm_bindgen_test::*;
use wasm_bindgen::prelude::*;
use web_sys::HtmlOptionsCollection;

#[wasm_bindgen(module = "./tests/wasm/element.js")]
extern {
    fn new_food_options_collection() -> HtmlOptionsCollection;
}

#[wasm_bindgen_test]
fn test_options_collection() {
    let opt_collection = new_food_options_collection();

    assert!(opt_collection.length() == 4, "Our option collection should have four options.");
    assert!(opt_collection.remove(0).is_ok(), "We should be able to successfully remove an element from an option collection.");
    assert!(opt_collection.length() == 3, "Our option collection should have three options after removing one.");

    assert!(opt_collection.set_selected_index(1).is_ok(), "Should be able to set the selected index of an option collection if it is valid.");
    assert_eq!(opt_collection.selected_index().unwrap(), 1, "The second option should be selected in our option collection.");

    opt_collection.set_length(1234);
    assert_eq!(opt_collection.length(), 1234, "Our option collections length should update after being set to 1234.");
}