@gameye/sdk/module/utils/stream-wait.spec.js

Node.js SDK for Gameye

import * as test from "blue-tape";
import { PassThrough } from "stream";
import { streamWait } from "./stream-wait";
test("stream-wait", async (t) => {
    const stream = new PassThrough({ objectMode: true });
    const write = (chunk) => new Promise((resolve, reject) => stream.write(chunk, error => error ? reject(error) : resolve()));
    const end = () => new Promise(resolve => stream.end(resolve));
    write("aa");
    write("bb");
    write("cc");
    {
        const wait = streamWait(stream, (c) => c === "bb");
        const chunk = await wait;
        t.equal(chunk, "bb");
    }
    {
        const wait = streamWait(stream, () => true);
        const chunk = await wait;
        t.equal(chunk, "cc");
    }
    await end();
});
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