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denoland-deno/cli/tests/node_compat/test/parallel/test-stream-pipe-await-drain-push-while-write.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

43 lines
1.3 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 stream = require('stream');
const assert = require('assert');
const writable = new stream.Writable({
write: common.mustCall(function(chunk, encoding, cb) {
assert.strictEqual(
readable._readableState.awaitDrainWriters,
null,
);
if (chunk.length === 32 * 1024) { // first chunk
readable.push(Buffer.alloc(34 * 1024)); // above hwm
// We should check if awaitDrain counter is increased in the next
// tick, because awaitDrain is incremented after this method finished
process.nextTick(() => {
assert.strictEqual(readable._readableState.awaitDrainWriters, writable);
});
}
process.nextTick(cb);
}, 3)
});
// A readable stream which produces two buffers.
const bufs = [Buffer.alloc(32 * 1024), Buffer.alloc(33 * 1024)]; // above hwm
const readable = new stream.Readable({
read: function() {
while (bufs.length > 0) {
this.push(bufs.shift());
}
}
});
readable.pipe(writable);