@boringnode/transmit/build/tests/mocks/sink.js

A framework agnostic Server-Sent-Event library

import { Writable } from 'node:stream';
export class Sink extends Writable {
    #chunks = [];
    constructor() {
        super({ objectMode: true });
    }
    assertWriteHead(assertion) {
        // @ts-expect-error - Mocking the writeHead method
        this.writeHead = (statusCode, headers) => {
            assertion(statusCode, headers);
        };
    }
    get content() {
        return this.#chunks.join('');
    }
    _write(chunk, _encoding, callback) {
        this.#chunks.push(chunk);
        callback();
    }
}