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119 lines
2.8 KiB
JavaScript
119 lines
2.8 KiB
JavaScript
// deno-fmt-ignore-file
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// deno-lint-ignore-file
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// Copyright Joyent and Node contributors. All rights reserved. MIT license.
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// Taken from Node 18.12.1
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// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually.
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'use strict';
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const common = require('../common');
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const assert = require('assert');
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const stream = require('stream');
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let state = 0;
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// What you do:
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//
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// const stream = new stream.Transform({
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// transform: function transformCallback(chunk, _, next) {
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// // part 1
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// this.push(chunk);
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// //part 2
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// next();
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// },
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// final: function endCallback(done) {
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// // part 1
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// process.nextTick(function () {
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// // part 2
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// done();
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// });
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// },
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// flush: function flushCallback(done) {
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// // part 1
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// process.nextTick(function () {
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// // part 2
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// done();
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// });
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// }
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// });
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// t.on('data', dataListener);
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// t.on('end', endListener);
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// t.on('finish', finishListener);
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// t.write(1);
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// t.write(4);
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// t.end(7, endMethodCallback);
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//
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// The order things are called
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// 1. transformCallback part 1
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// 2. dataListener
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// 3. transformCallback part 2
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// 4. transformCallback part 1
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// 5. dataListener
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// 6. transformCallback part 2
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// 7. transformCallback part 1
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// 8. dataListener
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// 9. transformCallback part 2
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// 10. finalCallback part 1
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// 11. finalCallback part 2
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// 12. flushCallback part 1
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// 13. finishListener
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// 14. endMethodCallback
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// 15. flushCallback part 2
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// 16. endListener
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const t = new stream.Transform({
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objectMode: true,
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transform: common.mustCall(function(chunk, _, next) {
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// transformCallback part 1
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assert.strictEqual(++state, chunk);
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this.push(state);
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// transformCallback part 2
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assert.strictEqual(++state, chunk + 2);
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process.nextTick(next);
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}, 3),
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final: common.mustCall(function(done) {
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state++;
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// finalCallback part 1
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assert.strictEqual(state, 10);
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setTimeout(function() {
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state++;
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// finalCallback part 2
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assert.strictEqual(state, 11);
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done();
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}, 100);
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}, 1),
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flush: common.mustCall(function(done) {
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state++;
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// flushCallback part 1
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assert.strictEqual(state, 12);
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process.nextTick(function() {
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state++;
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// flushCallback part 2
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assert.strictEqual(state, 13);
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done();
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});
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}, 1)
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});
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t.on('finish', common.mustCall(function() {
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state++;
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// finishListener
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assert.strictEqual(state, 15);
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}, 1));
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t.on('end', common.mustCall(function() {
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state++;
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// end event
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assert.strictEqual(state, 16);
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}, 1));
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t.on('data', common.mustCall(function(d) {
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// dataListener
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assert.strictEqual(++state, d + 1);
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}, 3));
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t.write(1);
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t.write(4);
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t.end(7, common.mustCall(function() {
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state++;
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// endMethodCallback
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assert.strictEqual(state, 14);
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}, 1));
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