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denoland-deno/cli/tests/node_compat/test/parallel/test-stream-writable-clear-buffer.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

42 lines
1.1 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';
// This test ensures that the _writeableState.bufferedRequestCount and
// the actual buffered request count are the same.
const common = require('../common');
const Stream = require('stream');
const assert = require('assert');
class StreamWritable extends Stream.Writable {
constructor() {
super({ objectMode: true });
}
// Refs: https://github.com/nodejs/node/issues/6758
// We need a timer like on the original issue thread.
// Otherwise the code will never reach our test case.
_write(chunk, encoding, cb) {
setImmediate(cb);
}
}
const testStream = new StreamWritable();
testStream.cork();
for (let i = 1; i <= 5; i++) {
testStream.write(i, common.mustCall(() => {
assert.strictEqual(
testStream._writableState.bufferedRequestCount,
testStream._writableState.getBuffer().length
);
}));
}
testStream.end();