1
0
Fork 0
mirror of https://github.com/denoland/deno.git synced 2024-12-20 14:24:48 -05:00
denoland-deno/tests/node_compat/test/parallel/test-stream2-writable.js
Matt Mastracci f5e46c9bf2
chore: move cli/tests/ -> tests/ (#22369)
This looks like a massive PR, but it's only a move from cli/tests ->
tests, and updates of relative paths for files.

This is the first step towards aggregate all of the integration test
files under tests/, which will lead to a set of integration tests that
can run without the CLI binary being built.

While we could leave these tests under `cli`, it would require us to
keep a more complex directory structure for the various test runners. In
addition, we have a lot of complexity to ignore various test files in
the `cli` project itself (cargo publish exclusion rules, autotests =
false, etc).

And finally, the `tests/` folder will eventually house the `test_ffi`,
`test_napi` and other testing code, reducing the size of the root repo
directory.

For easier review, the extremely large and noisy "move" is in the first
commit (with no changes -- just a move), while the remainder of the
changes to actual files is in the second commit.
2024-02-10 20:22:13 +00:00

466 lines
11 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 `tools/node_compat/setup.ts`. Do not modify this file manually.
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
const common = require('../common');
const { Writable: W, Duplex: D } = require('stream');
const assert = require('assert');
class TestWriter extends W {
constructor(opts) {
super(opts);
this.buffer = [];
this.written = 0;
}
_write(chunk, encoding, cb) {
// Simulate a small unpredictable latency
setTimeout(() => {
this.buffer.push(chunk.toString());
this.written += chunk.length;
cb();
}, Math.floor(Math.random() * 10));
}
}
const chunks = new Array(50);
for (let i = 0; i < chunks.length; i++) {
chunks[i] = 'x'.repeat(i);
}
{
// Verify fast writing
const tw = new TestWriter({
highWaterMark: 100
});
tw.on('finish', common.mustCall(function() {
// Got chunks in the right order
assert.deepStrictEqual(tw.buffer, chunks);
}));
chunks.forEach(function(chunk) {
// Ignore backpressure. Just buffer it all up.
tw.write(chunk);
});
tw.end();
}
{
// Verify slow writing
const tw = new TestWriter({
highWaterMark: 100
});
tw.on('finish', common.mustCall(function() {
// Got chunks in the right order
assert.deepStrictEqual(tw.buffer, chunks);
}));
let i = 0;
(function W() {
tw.write(chunks[i++]);
if (i < chunks.length)
setTimeout(W, 10);
else
tw.end();
})();
}
{
// Verify write backpressure
const tw = new TestWriter({
highWaterMark: 50
});
let drains = 0;
tw.on('finish', common.mustCall(function() {
// Got chunks in the right order
assert.deepStrictEqual(tw.buffer, chunks);
assert.strictEqual(drains, 17);
}));
tw.on('drain', function() {
drains++;
});
let i = 0;
(function W() {
let ret;
do {
ret = tw.write(chunks[i++]);
} while (ret !== false && i < chunks.length);
if (i < chunks.length) {
assert(tw.writableLength >= 50);
tw.once('drain', W);
} else {
tw.end();
}
})();
}
{
// Verify write buffersize
const tw = new TestWriter({
highWaterMark: 100
});
const encodings =
[ 'hex',
'utf8',
'utf-8',
'ascii',
'latin1',
'binary',
'base64',
'ucs2',
'ucs-2',
'utf16le',
'utf-16le',
undefined ];
tw.on('finish', function() {
// Got the expected chunks
assert.deepStrictEqual(tw.buffer, chunks);
});
chunks.forEach(function(chunk, i) {
const enc = encodings[i % encodings.length];
chunk = Buffer.from(chunk);
tw.write(chunk.toString(enc), enc);
});
}
{
// Verify write with no buffersize
const tw = new TestWriter({
highWaterMark: 100,
decodeStrings: false
});
tw._write = function(chunk, encoding, cb) {
assert.strictEqual(typeof chunk, 'string');
chunk = Buffer.from(chunk, encoding);
return TestWriter.prototype._write.call(this, chunk, encoding, cb);
};
const encodings =
[ 'hex',
'utf8',
'utf-8',
'ascii',
'latin1',
'binary',
'base64',
'ucs2',
'ucs-2',
'utf16le',
'utf-16le',
undefined ];
tw.on('finish', function() {
// Got the expected chunks
assert.deepStrictEqual(tw.buffer, chunks);
});
chunks.forEach(function(chunk, i) {
const enc = encodings[i % encodings.length];
chunk = Buffer.from(chunk);
tw.write(chunk.toString(enc), enc);
});
}
{
// Verify write callbacks
const callbacks = chunks.map(function(chunk, i) {
return [i, function() {
callbacks._called[i] = chunk;
}];
}).reduce(function(set, x) {
set[`callback-${x[0]}`] = x[1];
return set;
}, {});
callbacks._called = [];
const tw = new TestWriter({
highWaterMark: 100
});
tw.on('finish', common.mustCall(function() {
process.nextTick(common.mustCall(function() {
// Got chunks in the right order
assert.deepStrictEqual(tw.buffer, chunks);
// Called all callbacks
assert.deepStrictEqual(callbacks._called, chunks);
}));
}));
chunks.forEach(function(chunk, i) {
tw.write(chunk, callbacks[`callback-${i}`]);
});
tw.end();
}
{
// Verify end() callback
const tw = new TestWriter();
tw.end(common.mustCall());
}
const helloWorldBuffer = Buffer.from('hello world');
{
// Verify end() callback with chunk
const tw = new TestWriter();
tw.end(helloWorldBuffer, common.mustCall());
}
{
// Verify end() callback with chunk and encoding
const tw = new TestWriter();
tw.end('hello world', 'ascii', common.mustCall());
}
{
// Verify end() callback after write() call
const tw = new TestWriter();
tw.write(helloWorldBuffer);
tw.end(common.mustCall());
}
{
// Verify end() callback after write() callback
const tw = new TestWriter();
let writeCalledback = false;
tw.write(helloWorldBuffer, function() {
writeCalledback = true;
});
tw.end(common.mustCall(function() {
assert.strictEqual(writeCalledback, true);
}));
}
{
// Verify encoding is ignored for buffers
const tw = new W();
const hex = '018b5e9a8f6236ffe30e31baf80d2cf6eb';
tw._write = common.mustCall(function(chunk) {
assert.strictEqual(chunk.toString('hex'), hex);
});
const buf = Buffer.from(hex, 'hex');
tw.write(buf, 'latin1');
}
{
// Verify writables cannot be piped
const w = new W({ autoDestroy: false });
w._write = common.mustNotCall();
let gotError = false;
w.on('error', function() {
gotError = true;
});
w.pipe(process.stdout);
assert.strictEqual(gotError, true);
}
{
// Verify that duplex streams cannot be piped
const d = new D();
d._read = common.mustCall();
d._write = common.mustNotCall();
let gotError = false;
d.on('error', function() {
gotError = true;
});
d.pipe(process.stdout);
assert.strictEqual(gotError, false);
}
{
// Verify that end(chunk) twice is an error
const w = new W();
w._write = common.mustCall((msg) => {
assert.strictEqual(msg.toString(), 'this is the end');
});
let gotError = false;
w.on('error', function(er) {
gotError = true;
assert.strictEqual(er.message, 'write after end');
});
w.end('this is the end');
w.end('and so is this');
process.nextTick(common.mustCall(function() {
assert.strictEqual(gotError, true);
}));
}
{
// Verify stream doesn't end while writing
const w = new W();
let wrote = false;
w._write = function(chunk, e, cb) {
assert.strictEqual(this.writing, undefined);
wrote = true;
this.writing = true;
setTimeout(() => {
this.writing = false;
cb();
}, 1);
};
w.on('finish', common.mustCall(function() {
assert.strictEqual(wrote, true);
assert.strictEqual(this.writing, false);
}));
w.write(Buffer.alloc(0));
w.end();
}
{
// Verify finish does not come before write() callback
const w = new W();
let writeCb = false;
w._write = function(chunk, e, cb) {
setTimeout(function() {
writeCb = true;
cb();
}, 10);
};
w.on('finish', common.mustCall(function() {
assert.strictEqual(writeCb, true);
}));
w.write(Buffer.alloc(0));
w.end();
}
{
// Verify finish does not come before synchronous _write() callback
const w = new W();
let writeCb = false;
w._write = function(chunk, e, cb) {
cb();
};
w.on('finish', common.mustCall(function() {
assert.strictEqual(writeCb, true);
}));
w.write(Buffer.alloc(0), function() {
writeCb = true;
});
w.end();
}
{
// Verify finish is emitted if the last chunk is empty
const w = new W();
w._write = function(chunk, e, cb) {
process.nextTick(cb);
};
w.on('finish', common.mustCall());
w.write(Buffer.allocUnsafe(1));
w.end(Buffer.alloc(0));
}
{
// Verify that finish is emitted after shutdown
const w = new W();
let shutdown = false;
w._final = common.mustCall(function(cb) {
assert.strictEqual(this, w);
setTimeout(function() {
shutdown = true;
cb();
}, 100);
});
w._write = function(chunk, e, cb) {
process.nextTick(cb);
};
w.on('finish', common.mustCall(function() {
assert.strictEqual(shutdown, true);
}));
w.write(Buffer.allocUnsafe(1));
w.end(Buffer.allocUnsafe(0));
}
{
// Verify that error is only emitted once when failing in _finish.
const w = new W();
w._final = common.mustCall(function(cb) {
cb(new Error('test'));
});
w.on('error', common.mustCall((err) => {
assert.strictEqual(w._writableState.errorEmitted, true);
assert.strictEqual(err.message, 'test');
w.on('error', common.mustNotCall());
w.destroy(new Error());
}));
w.end();
}
{
// Verify that error is only emitted once when failing in write.
const w = new W();
w.on('error', common.mustNotCall());
assert.throws(() => {
w.write(null);
}, {
code: 'ERR_STREAM_NULL_VALUES'
});
}
{
// Verify that error is only emitted once when failing in write after end.
const w = new W();
w.on('error', common.mustCall((err) => {
assert.strictEqual(w._writableState.errorEmitted, true);
assert.strictEqual(err.code, 'ERR_STREAM_WRITE_AFTER_END');
}));
w.end();
w.write('hello');
w.destroy(new Error());
}
{
// Verify that finish is not emitted after error
const w = new W();
w._final = common.mustCall(function(cb) {
cb(new Error());
});
w._write = function(chunk, e, cb) {
process.nextTick(cb);
};
w.on('error', common.mustCall());
w.on('prefinish', common.mustNotCall());
w.on('finish', common.mustNotCall());
w.write(Buffer.allocUnsafe(1));
w.end(Buffer.allocUnsafe(0));
}