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denoland-deno/tests/node_compat/test/parallel/test-stream-pipe-same-destination-twice.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

85 lines
2.5 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');
// Regression test for https://github.com/nodejs/node/issues/12718.
// Tests that piping a source stream twice to the same destination stream
// works, and that a subsequent unpipe() call only removes the pipe *once*.
const assert = require('assert');
const { PassThrough, Writable } = require('stream');
{
const passThrough = new PassThrough();
const dest = new Writable({
write: common.mustCall((chunk, encoding, cb) => {
assert.strictEqual(`${chunk}`, 'foobar');
cb();
})
});
passThrough.pipe(dest);
passThrough.pipe(dest);
assert.strictEqual(passThrough._events.data.length, 2);
assert.strictEqual(passThrough._readableState.pipes.length, 2);
assert.strictEqual(passThrough._readableState.pipes[0], dest);
assert.strictEqual(passThrough._readableState.pipes[1], dest);
passThrough.unpipe(dest);
assert.strictEqual(passThrough._events.data.length, 1);
assert.strictEqual(passThrough._readableState.pipes.length, 1);
assert.deepStrictEqual(passThrough._readableState.pipes, [dest]);
passThrough.write('foobar');
passThrough.pipe(dest);
}
{
const passThrough = new PassThrough();
const dest = new Writable({
write: common.mustCall((chunk, encoding, cb) => {
assert.strictEqual(`${chunk}`, 'foobar');
cb();
}, 2)
});
passThrough.pipe(dest);
passThrough.pipe(dest);
assert.strictEqual(passThrough._events.data.length, 2);
assert.strictEqual(passThrough._readableState.pipes.length, 2);
assert.strictEqual(passThrough._readableState.pipes[0], dest);
assert.strictEqual(passThrough._readableState.pipes[1], dest);
passThrough.write('foobar');
}
{
const passThrough = new PassThrough();
const dest = new Writable({
write: common.mustNotCall()
});
passThrough.pipe(dest);
passThrough.pipe(dest);
assert.strictEqual(passThrough._events.data.length, 2);
assert.strictEqual(passThrough._readableState.pipes.length, 2);
assert.strictEqual(passThrough._readableState.pipes[0], dest);
assert.strictEqual(passThrough._readableState.pipes[1], dest);
passThrough.unpipe(dest);
passThrough.unpipe(dest);
assert.strictEqual(passThrough._events.data, undefined);
assert.strictEqual(passThrough._readableState.pipes.length, 0);
passThrough.write('foobar');
}