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denoland-deno/tests/node_compat/test/parallel/test-stream-pipe-flow.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

97 lines
2.2 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 { Readable, Writable, PassThrough } = require('stream');
{
let ticks = 17;
const rs = new Readable({
objectMode: true,
read: () => {
if (ticks-- > 0)
return process.nextTick(() => rs.push({}));
rs.push({});
rs.push(null);
}
});
const ws = new Writable({
highWaterMark: 0,
objectMode: true,
write: (data, end, cb) => setImmediate(cb)
});
rs.on('end', common.mustCall());
ws.on('finish', common.mustCall());
rs.pipe(ws);
}
{
let missing = 8;
const rs = new Readable({
objectMode: true,
read: () => {
if (missing--) rs.push({});
else rs.push(null);
}
});
const pt = rs
.pipe(new PassThrough({ objectMode: true, highWaterMark: 2 }))
.pipe(new PassThrough({ objectMode: true, highWaterMark: 2 }));
pt.on('end', () => {
wrapper.push(null);
});
const wrapper = new Readable({
objectMode: true,
read: () => {
process.nextTick(() => {
let data = pt.read();
if (data === null) {
pt.once('readable', () => {
data = pt.read();
if (data !== null) wrapper.push(data);
});
} else {
wrapper.push(data);
}
});
}
});
wrapper.resume();
wrapper.on('end', common.mustCall());
}
{
// Only register drain if there is backpressure.
const rs = new Readable({ read() {} });
const pt = rs
.pipe(new PassThrough({ objectMode: true, highWaterMark: 2 }));
assert.strictEqual(pt.listenerCount('drain'), 0);
pt.on('finish', () => {
assert.strictEqual(pt.listenerCount('drain'), 0);
});
rs.push('asd');
assert.strictEqual(pt.listenerCount('drain'), 0);
process.nextTick(() => {
rs.push('asd');
assert.strictEqual(pt.listenerCount('drain'), 0);
rs.push(null);
assert.strictEqual(pt.listenerCount('drain'), 0);
});
}