dominator-testing 0.1.0

Helpers for testing dominator UIs with wasm-bindgen-test
Documentation 
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use web_sys::Element;
use wasm_bindgen::JsCast;

pub fn test_dyn_element_by_id<T, F>(id: &str, tester: F)
where
    F: FnOnce(&T),
    T: JsCast,
{
    let cmp = web_sys::window()
        .unwrap()
        .document()
        .unwrap()
        .get_element_by_id(id)
        .unwrap_or_else(|| panic!("Element #{} not found", id));

    tester(cmp.dyn_ref::<T>().unwrap_or_else(|| {
        panic!(
            "Element #{} is not castable to the requested element type",
            id
        )
    }));
}

pub fn get_elements_by_class_name(class_name: &str) -> Vec<Element> {
    let mut out = vec![];

    let elements = web_sys::window()
        .unwrap()
        .document()
        .unwrap()
        .get_elements_by_class_name(class_name);

    for n in 0..elements.length() {
        let cmp = elements.item(n).unwrap();

        out.push(cmp)
    }

    out
}

pub fn has_class_name(ele: &Element, class_name: &str) -> bool {
    ele.class_name().contains(class_name)
}