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denoland-deno/cli/tests/node_compat/test/parallel/test-stream-readable-hwm-0-async.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

34 lines
900 B
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');
// This test ensures that Readable stream will continue to call _read
// for streams with highWaterMark === 0 once the stream returns data
// by calling push() asynchronously.
const { Readable } = require('stream');
let count = 5;
const r = new Readable({
// Called 6 times: First 5 return data, last one signals end of stream.
read: common.mustCall(() => {
process.nextTick(common.mustCall(() => {
if (count--)
r.push('a');
else
r.push(null);
}));
}, 6),
highWaterMark: 0,
});
r.on('end', common.mustCall());
r.on('data', common.mustCall(5));