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denoland-deno/tests/node_compat/test/parallel/test-stream-backpressure.js
Matt Mastracci f5e46c9bf2
chore: move cli/tests/ -> tests/ (#22369)
This looks like a massive PR, but it's only a move from cli/tests ->
tests, and updates of relative paths for files.

This is the first step towards aggregate all of the integration test
files under tests/, which will lead to a set of integration tests that
can run without the CLI binary being built.

While we could leave these tests under `cli`, it would require us to
keep a more complex directory structure for the various test runners. In
addition, we have a lot of complexity to ignore various test files in
the `cli` project itself (cargo publish exclusion rules, autotests =
false, etc).

And finally, the `tests/` folder will eventually house the `test_ffi`,
`test_napi` and other testing code, reducing the size of the root repo
directory.

For easier review, the extremely large and noisy "move" is in the first
commit (with no changes -- just a move), while the remainder of the
changes to actual files is in the second commit.
2024-02-10 20:22:13 +00:00

46 lines
1.1 KiB
JavaScript

// 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 `tools/node_compat/setup.ts`. Do not modify this file manually.
'use strict';
const common = require('../common');
const assert = require('assert');
const stream = require('stream');
let pushes = 0;
const total = 65500 + 40 * 1024;
const rs = new stream.Readable({
read: common.mustCall(function() {
if (pushes++ === 10) {
this.push(null);
return;
}
const length = this._readableState.length;
// We are at most doing two full runs of _reads
// before stopping, because Readable is greedy
// to keep its buffer full
assert(length <= total);
this.push(Buffer.alloc(65500));
for (let i = 0; i < 40; i++) {
this.push(Buffer.alloc(1024));
}
// We will be over highWaterMark at this point
// but a new call to _read is scheduled anyway.
}, 11)
});
const ws = stream.Writable({
write: common.mustCall(function(data, enc, cb) {
setImmediate(cb);
}, 41 * 10)
});
rs.pipe(ws);