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29085895c9
The `tools/node_compat/node` submodule has been moved to `tests/node_compat/runner/suite` and the remaining files within `tools/node_compat` to `tests/node_compat/runner`. Most of the changes are of the header within `tests/node_compat/test` files. The `setup` and `test` tasks within `tests/node_comapt` execute successfully. Towards #22525 CC @mmastrac
74 lines
2.2 KiB
JavaScript
74 lines
2.2 KiB
JavaScript
// deno-fmt-ignore-file
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// deno-lint-ignore-file
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// Copyright Joyent and Node contributors. All rights reserved. MIT license.
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// Taken from Node 18.12.1
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// This file is automatically generated by `tests/node_compat/runner/setup.ts`. Do not modify this file manually.
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'use strict';
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const common = require('../common');
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const stream = require('stream');
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const assert = require('assert');
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// This is very similar to test-stream-pipe-cleanup-pause.js.
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const reader = new stream.Readable();
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const writer1 = new stream.Writable();
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const writer2 = new stream.Writable();
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const writer3 = new stream.Writable();
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// 560000 is chosen here because it is larger than the (default) highWaterMark
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// and will cause `.write()` to return false
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// See: https://github.com/nodejs/node/issues/5820
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const buffer = Buffer.allocUnsafe(560000);
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reader._read = () => {};
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writer1._write = common.mustCall(function(chunk, encoding, cb) {
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this.emit('chunk-received');
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process.nextTick(cb);
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}, 1);
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writer1.once('chunk-received', () => {
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assert.strictEqual(
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reader._readableState.awaitDrainWriters.size,
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0,
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'awaitDrain initial value should be 0, actual is ' +
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reader._readableState.awaitDrainWriters.size
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);
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setImmediate(() => {
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// This one should *not* get through to writer1 because writer2 is not
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// "done" processing.
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reader.push(buffer);
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});
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});
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// A "slow" consumer:
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writer2._write = common.mustCall((chunk, encoding, cb) => {
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assert.strictEqual(
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reader._readableState.awaitDrainWriters.size,
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1,
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'awaitDrain should be 1 after first push, actual is ' +
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reader._readableState.awaitDrainWriters.size
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);
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// Not calling cb here to "simulate" slow stream.
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// This should be called exactly once, since the first .write() call
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// will return false.
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}, 1);
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writer3._write = common.mustCall((chunk, encoding, cb) => {
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assert.strictEqual(
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reader._readableState.awaitDrainWriters.size,
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2,
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'awaitDrain should be 2 after second push, actual is ' +
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reader._readableState.awaitDrainWriters.size
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);
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// Not calling cb here to "simulate" slow stream.
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// This should be called exactly once, since the first .write() call
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// will return false.
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}, 1);
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reader.pipe(writer1);
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reader.pipe(writer2);
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reader.pipe(writer3);
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reader.push(buffer);
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