07fb744b99Signed-off-by: Matteo Collina <hello@matteocollina.com> PR-URL: https://github.com/nodejs/node/pull/63973 Refs: https://github.com/nodejs/node/pull/63570 Refs: https://github.com/nodejs/undici/issues/5002 Reviewed-By: Jithil P Ponnan <jithil@outlook.com> Reviewed-By: James M Snell <jasnell@gmail.com>
105 lines
2.3 KiB
JavaScript
105 lines
2.3 KiB
JavaScript
'use strict';
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require('../common');
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const { Readable } = require('stream');
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const assert = require('assert');
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{
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// Call .setEncoding() while there are bytes already in the buffer.
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const r = new Readable({ read() {} });
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r.push(Buffer.from('a'));
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r.push(Buffer.from('b'));
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r.setEncoding('utf8');
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const chunks = [];
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r.on('data', (chunk) => chunks.push(chunk));
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process.nextTick(() => {
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assert.deepStrictEqual(chunks, ['ab']);
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});
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}
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{
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// Call .setEncoding() while the buffer contains a complete,
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// but chunked character.
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const r = new Readable({ read() {} });
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r.push(Buffer.from([0xf0]));
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r.push(Buffer.from([0x9f]));
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r.push(Buffer.from([0x8e]));
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r.push(Buffer.from([0x89]));
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r.setEncoding('utf8');
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const chunks = [];
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r.on('data', (chunk) => chunks.push(chunk));
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process.nextTick(() => {
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assert.deepStrictEqual(chunks, ['🎉']);
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});
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}
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{
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// Call .setEncoding() while the buffer contains an incomplete character,
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// and finish the character later.
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const r = new Readable({ read() {} });
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r.push(Buffer.from([0xf0]));
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r.push(Buffer.from([0x9f]));
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r.setEncoding('utf8');
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r.push(Buffer.from([0x8e]));
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r.push(Buffer.from([0x89]));
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const chunks = [];
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r.on('data', (chunk) => chunks.push(chunk));
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process.nextTick(() => {
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assert.deepStrictEqual(chunks, ['🎉']);
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});
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}
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{
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// Call .setEncoding() before the stream starts flowing, after _read()
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// has buffered the first chunk of a split character.
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const chunks = [
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Buffer.from([0xf0, 0x9f]),
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Buffer.from([0x8e, 0x89]),
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null,
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];
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const r = new Readable({
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read() {
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this.push(chunks.shift());
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},
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});
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r.read(0);
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assert.strictEqual(r.readableFlowing, null);
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assert.strictEqual(r.readableLength, 2);
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r.setEncoding('utf8');
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const received = [];
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r.on('data', (chunk) => received.push(chunk));
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process.nextTick(() => {
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assert.deepStrictEqual(received, ['🎉']);
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});
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}
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{
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// Call .setEncoding() after EOF while the buffer contains an
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// incomplete character.
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const r = new Readable({ read() {} });
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r.push(Buffer.from([0xf0]));
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r.push(Buffer.from([0x9f]));
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r.push(null);
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r.setEncoding('utf8');
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const chunks = [];
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r.on('data', (chunk) => chunks.push(chunk));
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process.nextTick(() => {
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assert.deepStrictEqual(chunks, ['<27>']);
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});
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}
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