numerica/packages/cli/src/packages/write-stream.ts

import {WriteStream} from 'tty';

export class DummyWriteStream extends WriteStream {
	private bufferInternal = Buffer.from('');

	constructor() {
		super(0);
	}

	write(input: Uint8Array | string, _encoding?: BufferEncoding | ((err?: Error) => void), _cb?: (err?: Error) => void): boolean {
		this.bufferInternal = Buffer.concat([this.bufferInternal, Buffer.from(input)]);
		// noop
		return true;
	}

	get buffer(): Buffer {
		return this.bufferInternal;
	}
}