mirror of
https://github.com/nodejs/node.git
synced 2025-05-03 18:15:18 +00:00
a9f5b2b62c
Update comment to refer to the correct ASCII code (120 rather than 66). All other changes are cosmetic. PR-URL: https://github.com/nodejs/node/pull/36152 Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
43 lines
1.3 KiB
JavaScript
43 lines
1.3 KiB
JavaScript
'use strict';
|
|
|
|
|
|
// Test to assert the desired functioning of fs.read
|
|
// when {offset:null} is passed as options parameter
|
|
|
|
const common = require('../common');
|
|
const assert = require('assert');
|
|
const fs = require('fs');
|
|
const fsPromises = fs.promises;
|
|
const fixtures = require('../common/fixtures');
|
|
const filepath = fixtures.path('x.txt');
|
|
|
|
const buf = Buffer.alloc(1);
|
|
// Reading only one character, hence buffer of one byte is enough.
|
|
|
|
// Test for callback API.
|
|
fs.open(filepath, 'r', common.mustSucceed((fd) => {
|
|
fs.read(fd, { offset: null, buffer: buf },
|
|
common.mustSucceed((bytesRead, buffer) => {
|
|
// Test is done by making sure the first letter in buffer is
|
|
// same as first letter in file.
|
|
// 120 is the hex for ascii code of letter x.
|
|
assert.strictEqual(buffer[0], 120);
|
|
fs.close(fd, common.mustSucceed(() => {}));
|
|
}));
|
|
}));
|
|
|
|
let filehandle = null;
|
|
|
|
// Test for promise api
|
|
(async () => {
|
|
filehandle = await fsPromises.open(filepath, 'r');
|
|
const readObject = await filehandle.read(buf, null, buf.length);
|
|
assert.strictEqual(readObject.buffer[0], 120);
|
|
})()
|
|
.then(common.mustCall())
|
|
.finally(async () => {
|
|
// Close the file handle if it is opened
|
|
if (filehandle)
|
|
await filehandle.close();
|
|
});
|