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denoland-deno/cli/tests/node_compat/test/parallel/test-stream-unpipe-event.js
Yoshiya Hinosawa 6915a9b7a7
test(ext/node): more node compat tests (#17827)
This PR adds the remaining ~650 Node.js compat test cases from std/node.

Among these 650 cases, about 130 cases are now failing. These failing
cases are prefixed with `TODO:` in `tests/node_compat/config.json`.
These will be addressed in later PRs.
2023-02-20 16:35:04 +01:00

92 lines
2.3 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 "node/_tools/setup.ts". Do not modify this file manually
'use strict';
const common = require('../common');
const assert = require('assert');
const { Writable, Readable } = require('stream');
class NullWriteable extends Writable {
_write(chunk, encoding, callback) {
return callback();
}
}
class QuickEndReadable extends Readable {
_read() {
this.push(null);
}
}
class NeverEndReadable extends Readable {
_read() {}
}
{
const dest = new NullWriteable();
const src = new QuickEndReadable();
dest.on('pipe', common.mustCall());
dest.on('unpipe', common.mustCall());
src.pipe(dest);
setImmediate(() => {
assert.strictEqual(src._readableState.pipes.length, 0);
});
}
{
const dest = new NullWriteable();
const src = new NeverEndReadable();
dest.on('pipe', common.mustCall());
dest.on('unpipe', common.mustNotCall('unpipe should not have been emitted'));
src.pipe(dest);
setImmediate(() => {
assert.strictEqual(src._readableState.pipes.length, 1);
});
}
{
const dest = new NullWriteable();
const src = new NeverEndReadable();
dest.on('pipe', common.mustCall());
dest.on('unpipe', common.mustCall());
src.pipe(dest);
src.unpipe(dest);
setImmediate(() => {
assert.strictEqual(src._readableState.pipes.length, 0);
});
}
{
const dest = new NullWriteable();
const src = new QuickEndReadable();
dest.on('pipe', common.mustCall());
dest.on('unpipe', common.mustCall());
src.pipe(dest, { end: false });
setImmediate(() => {
assert.strictEqual(src._readableState.pipes.length, 0);
});
}
{
const dest = new NullWriteable();
const src = new NeverEndReadable();
dest.on('pipe', common.mustCall());
dest.on('unpipe', common.mustNotCall('unpipe should not have been emitted'));
src.pipe(dest, { end: false });
setImmediate(() => {
assert.strictEqual(src._readableState.pipes.length, 1);
});
}
{
const dest = new NullWriteable();
const src = new NeverEndReadable();
dest.on('pipe', common.mustCall());
dest.on('unpipe', common.mustCall());
src.pipe(dest, { end: false });
src.unpipe(dest);
setImmediate(() => {
assert.strictEqual(src._readableState.pipes.length, 0);
});
}