blob: 94a0657ead9ff3853ef427e73cd8ad978c28d3b9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
// deno-fmt-ignore-file
// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.
// Taken from Node 18.12.1
// This file is automatically generated by `tests/node_compat/runner/setup.ts`. Do not modify this file manually.
'use strict';
const common = require('../common');
// This test ensures that Readable stream will call _read() for streams
// with highWaterMark === 0 upon .read(0) instead of just trying to
// emit 'readable' event.
const assert = require('assert');
const { Readable } = require('stream');
const r = new Readable({
// Must be called only once upon setting 'readable' listener
read: common.mustCall(),
highWaterMark: 0,
});
let pushedNull = false;
// This will trigger read(0) but must only be called after push(null)
// because the we haven't pushed any data
r.on('readable', common.mustCall(() => {
assert.strictEqual(r.read(), null);
assert.strictEqual(pushedNull, true);
}));
r.on('end', common.mustCall());
process.nextTick(() => {
assert.strictEqual(r.read(), null);
pushedNull = true;
r.push(null);
});
|
