nodejs-mozilla/test/parallel/test-fs-write-stream-encodi...

37 lines
1021 B
JavaScript

'use strict';
require('../common');
const assert = require('assert');
const fixtures = require('../common/fixtures');
const fs = require('fs');
const path = require('path');
const stream = require('stream');
const tmpdir = require('../common/tmpdir');
const firstEncoding = 'base64';
const secondEncoding = 'latin1';
const examplePath = fixtures.path('x.txt');
const dummyPath = path.join(tmpdir.path, 'x.txt');
tmpdir.refresh();
const exampleReadStream = fs.createReadStream(examplePath, {
encoding: firstEncoding
});
const dummyWriteStream = fs.createWriteStream(dummyPath, {
encoding: firstEncoding
});
exampleReadStream.pipe(dummyWriteStream).on('finish', function() {
const assertWriteStream = new stream.Writable({
write: function(chunk, enc, next) {
const expected = Buffer.from('xyz\n');
assert(chunk.equals(expected));
}
});
assertWriteStream.setDefaultEncoding(secondEncoding);
fs.createReadStream(dummyPath, {
encoding: secondEncoding
}).pipe(assertWriteStream);
});