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denoland-deno/tests/node_compat/test/parallel/test-fs-promises-readfile-with-fd.js
Yoshiya Hinosawa fb24fd37c9
test: add node compat test cases (#27134)
This PR enables node compat test cases found passing by using the tool
added in #27122

The percentage of passing test case increases from 16.16% to 30.43% by
this change.
2024-12-04 11:37:20 +09:00

41 lines
1.2 KiB
JavaScript

// deno-fmt-ignore-file
// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.
// Taken from Node 20.11.1
// This file is automatically generated by `tests/node_compat/runner/setup.ts`. Do not modify this file manually.
'use strict';
// This test makes sure that `readFile()` always reads from the current
// position of the file, instead of reading from the beginning of the file.
const common = require('../common');
const assert = require('assert');
const { writeFileSync } = require('fs');
const { open } = require('fs').promises;
const tmpdir = require('../common/tmpdir');
tmpdir.refresh();
const fn = tmpdir.resolve('test.txt');
writeFileSync(fn, 'Hello World');
async function readFileTest() {
const handle = await open(fn, 'r');
/* Read only five bytes, so that the position moves to five. */
const buf = Buffer.alloc(5);
const { bytesRead } = await handle.read(buf, 0, 5, null);
assert.strictEqual(bytesRead, 5);
assert.strictEqual(buf.toString(), 'Hello');
/* readFile() should read from position five, instead of zero. */
assert.strictEqual((await handle.readFile()).toString(), ' World');
await handle.close();
}
readFileTest()
.then(common.mustCall());