mirror of https://gitee.com/openkylin/nodejs.git
49 lines
1.4 KiB
JavaScript
49 lines
1.4 KiB
JavaScript
'use strict';
|
|
|
|
const common = require('../common');
|
|
|
|
// The following tests validate base functionality for the fs.promises
|
|
// FileHandle.readFile method.
|
|
|
|
const fs = require('fs');
|
|
const { open } = fs.promises;
|
|
const path = require('path');
|
|
const tmpdir = require('../common/tmpdir');
|
|
const assert = require('assert');
|
|
const tmpDir = tmpdir.path;
|
|
|
|
tmpdir.refresh();
|
|
|
|
async function validateReadFile() {
|
|
const filePath = path.resolve(tmpDir, 'tmp-read-file.txt');
|
|
const fileHandle = await open(filePath, 'w+');
|
|
const buffer = Buffer.from('Hello world'.repeat(100), 'utf8');
|
|
|
|
const fd = fs.openSync(filePath, 'w+');
|
|
fs.writeSync(fd, buffer, 0, buffer.length);
|
|
fs.closeSync(fd);
|
|
|
|
const readFileData = await fileHandle.readFile();
|
|
assert.deepStrictEqual(buffer, readFileData);
|
|
}
|
|
|
|
async function validateReadFileProc() {
|
|
// Test to make sure reading a file under the /proc directory works. Adapted
|
|
// from test-fs-read-file-sync-hostname.js.
|
|
// Refs:
|
|
// - https://groups.google.com/forum/#!topic/nodejs-dev/rxZ_RoH1Gn0
|
|
// - https://github.com/nodejs/node/issues/21331
|
|
|
|
// Test is Linux-specific.
|
|
if (!common.isLinux)
|
|
return;
|
|
|
|
const fileHandle = await open('/proc/sys/kernel/hostname', 'r');
|
|
const hostname = await fileHandle.readFile();
|
|
assert.ok(hostname.length > 0);
|
|
}
|
|
|
|
validateReadFile()
|
|
.then(() => validateReadFileProc())
|
|
.then(common.mustCall());
|