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denoland-deno/tests/node_compat/test/parallel/test-stream-transform-final.js
Asher Gomez 29085895c9
chore: move tools/node_compat to tests/node_compat/runner (#23025)
The `tools/node_compat/node` submodule has been moved to
`tests/node_compat/runner/suite` and the remaining files within
`tools/node_compat` to `tests/node_compat/runner`.

Most of the changes are of the header within `tests/node_compat/test`
files. The `setup` and `test` tasks within `tests/node_comapt` execute
successfully.

Towards #22525
CC @mmastrac
2024-04-03 09:24:55 +11:00

119 lines
2.8 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 `tests/node_compat/runner/setup.ts`. Do not modify this file manually.
'use strict';
const common = require('../common');
const assert = require('assert');
const stream = require('stream');
let state = 0;
// What you do:
//
// const stream = new stream.Transform({
// transform: function transformCallback(chunk, _, next) {
// // part 1
// this.push(chunk);
// //part 2
// next();
// },
// final: function endCallback(done) {
// // part 1
// process.nextTick(function () {
// // part 2
// done();
// });
// },
// flush: function flushCallback(done) {
// // part 1
// process.nextTick(function () {
// // part 2
// done();
// });
// }
// });
// t.on('data', dataListener);
// t.on('end', endListener);
// t.on('finish', finishListener);
// t.write(1);
// t.write(4);
// t.end(7, endMethodCallback);
//
// The order things are called
// 1. transformCallback part 1
// 2. dataListener
// 3. transformCallback part 2
// 4. transformCallback part 1
// 5. dataListener
// 6. transformCallback part 2
// 7. transformCallback part 1
// 8. dataListener
// 9. transformCallback part 2
// 10. finalCallback part 1
// 11. finalCallback part 2
// 12. flushCallback part 1
// 13. finishListener
// 14. endMethodCallback
// 15. flushCallback part 2
// 16. endListener
const t = new stream.Transform({
objectMode: true,
transform: common.mustCall(function(chunk, _, next) {
// transformCallback part 1
assert.strictEqual(++state, chunk);
this.push(state);
// transformCallback part 2
assert.strictEqual(++state, chunk + 2);
process.nextTick(next);
}, 3),
final: common.mustCall(function(done) {
state++;
// finalCallback part 1
assert.strictEqual(state, 10);
setTimeout(function() {
state++;
// finalCallback part 2
assert.strictEqual(state, 11);
done();
}, 100);
}, 1),
flush: common.mustCall(function(done) {
state++;
// flushCallback part 1
assert.strictEqual(state, 12);
process.nextTick(function() {
state++;
// flushCallback part 2
assert.strictEqual(state, 13);
done();
});
}, 1)
});
t.on('finish', common.mustCall(function() {
state++;
// finishListener
assert.strictEqual(state, 15);
}, 1));
t.on('end', common.mustCall(function() {
state++;
// end event
assert.strictEqual(state, 16);
}, 1));
t.on('data', common.mustCall(function(d) {
// dataListener
assert.strictEqual(++state, d + 1);
}, 3));
t.write(1);
t.write(4);
t.end(7, common.mustCall(function() {
state++;
// endMethodCallback
assert.strictEqual(state, 14);
}, 1));