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denoland-deno/std/async/mux_async_iterator_test.ts
Nayeem Rahman f184332c09
BREAKING(std): reorganization (#5087)
* Prepend underscores to private modules
* Remove collectUint8Arrays() It would be a misuse of Deno.iter()'s result.
* Move std/_util/async.ts to std/async
* Move std/util/sha*.ts to std/hash
2020-05-09 08:34:47 -04:00

28 lines
752 B
TypeScript

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { assertEquals } from "../testing/asserts.ts";
import { MuxAsyncIterator } from "./mux_async_iterator.ts";
// eslint-disable-next-line require-await
async function* gen123(): AsyncIterableIterator<number> {
yield 1;
yield 2;
yield 3;
}
// eslint-disable-next-line require-await
async function* gen456(): AsyncIterableIterator<number> {
yield 4;
yield 5;
yield 6;
}
Deno.test("[async] MuxAsyncIterator", async function (): Promise<void> {
const mux = new MuxAsyncIterator<number>();
mux.add(gen123());
mux.add(gen456());
const results = new Set();
for await (const value of mux) {
results.add(value);
}
assertEquals(results.size, 6);
});