Vendor things

third-party/vendor/web-sys/tests/wasm/event.rs

@@ -0,0 +1,30 @@
+use js_sys::{Object, Promise};
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_futures::JsFuture;
+use wasm_bindgen_test::*;
+use web_sys::Event;
+
+#[wasm_bindgen(module = "/tests/wasm/event.js")]
+extern "C" {
+    fn new_event() -> Promise;
+}
+
+#[wasm_bindgen_test]
+async fn event() {
+    let result = JsFuture::from(new_event()).await.unwrap();
+    let event = Event::from(result);
+    // All DOM interfaces should inherit from `Object`.
+    assert!(event.is_instance_of::<Object>());
+    let _: &Object = event.as_ref();
+
+    // These should match `new Event`.
+    assert!(event.bubbles());
+    assert!(event.cancelable());
+    assert!(event.composed());
+
+    // The default behavior not initially prevented, but after
+    // we call `prevent_default` it better be.
+    assert!(!event.default_prevented());
+    event.prevent_default();
+    assert!(event.default_prevented());
+}