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'use strict';
const common = require('../common');
const assert = require('assert');
const fs = require('fs');
const path = require('path');
const { promisify } = require('util');
const read = promisify(fs.read);
const write = promisify(fs.write);
const exists = promisify(fs.exists);
{
const fd = fs.openSync(__filename, 'r');
read(fd, Buffer.alloc(1024), 0, 1024, null).then(common.mustCall((obj) => {
assert.strictEqual(typeof obj.bytesRead, 'number');
assert(obj.buffer instanceof Buffer);
fs.closeSync(fd);
}));
}
const tmpdir = require('../common/tmpdir');
tmpdir.refresh();
{
const filename = path.join(tmpdir.path, 'write-promise.txt');
const fd = fs.openSync(filename, 'w');
write(fd, Buffer.from('foobar')).then(common.mustCall((obj) => {
assert.strictEqual(typeof obj.bytesWritten, 'number');
assert.strictEqual(obj.buffer.toString(), 'foobar');
fs.closeSync(fd);
}));
}
{
exists(__filename).then(common.mustCall((x) => {
assert.strictEqual(x, true);
}));
}