wasm-bindgen/crates/web-sys/tests/wasm/event.js

export function new_event() {
  return new Promise(resolve => {
    window.addEventListener("test-event", resolve);
    window.dispatchEvent(new Event("test-event", {
      bubbles: true,
      cancelable: true,
      composed: true,
    }));
  });
}
Support asynchronous tests (#600) * Tweak the implementation of heap closures This commit updates the implementation of the `Closure` type to internally store an `Rc` and be suitable for dropping a `Closure` during the execution of the closure. This is currently needed for promises but may be generally useful as well! * Support asynchronous tests This commit adds support for executing tests asynchronously. This is modeled by tests returning a `Future` instead of simply executing inline, and is signified with `#[wasm_bindgen_test(async)]`. Support for this is added through a new `wasm-bindgen-futures` crate which is a binding between the `futures` crate and JS `Promise` objects. Lots more details can be found in the details of the commit, but one of the end results is that the `web-sys` tests are now entirely contained in the same test suite and don't need `npm install` to be run to execute them! * Review tweaks * Add some bindings for `Function.call` to `js_sys` Name them `call0`, `call1`, `call2`, ... for the number of arguments being passed. * Use oneshots channels with `JsFuture` It did indeed clean up the implementation! 2018-08-01 15:52:24 -05:00			`export function new_event() {`
			`return new Promise(resolve => {`
			`window.addEventListener("test-event", resolve);`
			`window.dispatchEvent(new Event("test-event", {`
			`bubbles: true,`
			`cancelable: true,`
			`composed: true,`
			`}));`
			`});`
			`}`