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'use strict';
const common = require('../common');
const assert = require('assert');
const path = require('path');
const fs = require('fs');
const filename = path.join(common.tmpDir, 'write.txt');
common.refreshTmpDir();
// fs.writeSync with all parameters provided:
{
const fd = fs.openSync(filename, 'w');
let written = fs.writeSync(fd, '');
assert.strictEqual(0, written);
fs.writeSync(fd, 'foo');
written = fs.writeSync(fd, Buffer.from('bár'), 0, Buffer.byteLength('bár'));
assert.ok(written > 3);
fs.closeSync(fd);
assert.strictEqual(fs.readFileSync(filename, 'utf-8'), 'foobár');
}
// fs.writeSync with a buffer, without the length parameter:
{
const fd = fs.openSync(filename, 'w');
let written = fs.writeSync(fd, '');
assert.strictEqual(0, written);
fs.writeSync(fd, 'foo');
written = fs.writeSync(fd, Buffer.from('bár'), 0);
assert.ok(written > 3);
fs.closeSync(fd);
assert.strictEqual(fs.readFileSync(filename, 'utf-8'), 'foobár');
}
// fs.writeSync with a buffer, without the offset and length parameters:
{
const fd = fs.openSync(filename, 'w');
let written = fs.writeSync(fd, '');
assert.strictEqual(0, written);
fs.writeSync(fd, 'foo');
written = fs.writeSync(fd, Buffer.from('bár'));
assert.ok(written > 3);
fs.closeSync(fd);
assert.strictEqual(fs.readFileSync(filename, 'utf-8'), 'foobár');
}