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'use strict';
require('../common');
const { Readable } = require('stream');
const assert = require('assert');
{
// Call .setEncoding() while there are bytes already in the buffer.
const r = new Readable({ read() {} });
r.push(Buffer.from('a'));
r.push(Buffer.from('b'));
r.setEncoding('utf8');
const chunks = [];
r.on('data', (chunk) => chunks.push(chunk));
process.nextTick(() => {
assert.deepStrictEqual(chunks, ['ab']);
});
}
{
// Call .setEncoding() while the buffer contains a complete,
// but chunked character.
const r = new Readable({ read() {} });
r.push(Buffer.from([0xf0]));
r.push(Buffer.from([0x9f]));
r.push(Buffer.from([0x8e]));
r.push(Buffer.from([0x89]));
r.setEncoding('utf8');
const chunks = [];
r.on('data', (chunk) => chunks.push(chunk));
process.nextTick(() => {
assert.deepStrictEqual(chunks, ['🎉']);
});
}
{
// Call .setEncoding() while the buffer contains an incomplete character,
// and finish the character later.
const r = new Readable({ read() {} });
r.push(Buffer.from([0xf0]));
r.push(Buffer.from([0x9f]));
r.setEncoding('utf8');
r.push(Buffer.from([0x8e]));
r.push(Buffer.from([0x89]));
const chunks = [];
r.on('data', (chunk) => chunks.push(chunk));
process.nextTick(() => {
assert.deepStrictEqual(chunks, ['🎉']);
});
}
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