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denoland-deno/cli/tests/node_compat/test/parallel/test-stream-write-destroy.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

69 lines
1.9 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';
require('../common');
const assert = require('assert');
const { Writable } = require('stream');
// Test interaction between calling .destroy() on a writable and pending
// writes.
for (const withPendingData of [ false, true ]) {
for (const useEnd of [ false, true ]) {
const callbacks = [];
const w = new Writable({
write(data, enc, cb) {
callbacks.push(cb);
},
// Effectively disable the HWM to observe 'drain' events more easily.
highWaterMark: 1
});
let chunksWritten = 0;
let drains = 0;
w.on('drain', () => drains++);
function onWrite(err) {
if (err) {
assert.strictEqual(w.destroyed, true);
assert.strictEqual(err.code, 'ERR_STREAM_DESTROYED');
} else {
chunksWritten++;
}
}
w.write('abc', onWrite);
assert.strictEqual(chunksWritten, 0);
assert.strictEqual(drains, 0);
callbacks.shift()();
assert.strictEqual(chunksWritten, 1);
assert.strictEqual(drains, 1);
if (withPendingData) {
// Test 2 cases: There either is or is not data still in the write queue.
// (The second write will never actually get executed either way.)
w.write('def', onWrite);
}
if (useEnd) {
// Again, test 2 cases: Either we indicate that we want to end the
// writable or not.
w.end('ghi', onWrite);
} else {
w.write('ghi', onWrite);
}
assert.strictEqual(chunksWritten, 1);
w.destroy();
assert.strictEqual(chunksWritten, 1);
callbacks.shift()();
assert.strictEqual(chunksWritten, useEnd && !withPendingData ? 1 : 2);
assert.strictEqual(callbacks.length, 0);
assert.strictEqual(drains, 1);
}
}