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denoland-deno/tests/unit_node/events_test.ts
Luca Casonato 49e3ee010c
feat(ext/node): add abort helpers, process & streams fix (#25262)
This commit adds:

- `addAbortListener` in `node:events`
- `aborted` in `node:util`
- `execPath` and `execvArgs` named export from `node:process`
- `getDefaultHighWaterMark` from `node:stream`

The `execPath` is very hacky - because module namespaces can not have
real getters, `execPath` is an object with a `toString()` method that on
call returns the actual `execPath`, and replaces the `execPath` binding
with the string. This is done so that we don't require the `execPath`
permission on startup.
2024-09-05 09:22:52 +02:00

47 lines
1.1 KiB
TypeScript

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
// @ts-expect-error: @types/node is outdated
import events, { addAbortListener, EventEmitter } from "node:events";
EventEmitter.captureRejections = true;
Deno.test("regression #20441", async () => {
const { promise, resolve } = Promise.withResolvers<void>();
const ee = new EventEmitter();
ee.on("foo", function () {
const p = new Promise((_resolve, reject) => {
setTimeout(() => {
reject();
}, 100);
});
return p;
});
ee.on("error", function (_) {
resolve();
});
ee.emit("foo");
await promise;
});
Deno.test("eventemitter async resource", () => {
// @ts-ignore: @types/node is outdated
class Foo extends events.EventEmitterAsyncResource {}
const foo = new Foo();
// @ts-ignore: @types/node is outdated
foo.emit("bar");
});
Deno.test("addAbortListener", async () => {
const { promise, resolve } = Promise.withResolvers<void>();
const abortController = new AbortController();
addAbortListener(abortController.signal, () => {
resolve();
});
abortController.abort();
await promise;
});