nodejs/test/parallel/test-readable-large-hwm.js

28 lines
552 B
JavaScript

'use strict';
const common = require('../common');
const { Readable } = require('stream');
// Make sure that readable completes
// even when reading larger buffer.
const bufferSize = 10 * 1024 * 1024;
let n = 0;
const r = new Readable({
read() {
// Try to fill readable buffer piece by piece.
r.push(Buffer.alloc(bufferSize / 10));
if (n++ > 10) {
r.push(null);
}
}
});
r.on('readable', () => {
while (true) {
const ret = r.read(bufferSize);
if (ret === null)
break;
}
});
r.on('end', common.mustCall());