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fs_async.js
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fs_async.js
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import { test, summary } from './helpers.js';
import fs from 'ant:fs';
import path from 'ant:path';
console.log('FS Async Tests\n');
async function run() {
const testDir = '/tmp/ant-spec-test-async';
const testFile = path.join(testDir, 'test.txt');
await fs.mkdir(testDir, { recursive: true });
test('mkdir creates dir', await fs.exists(testDir), true);
await fs.writeFile(testFile, 'hello world');
test('writeFile creates file', await fs.exists(testFile), true);
const content = await fs.readFile(testFile, 'utf8');
test('readFile content', content, 'hello world');
const stat = await fs.stat(testFile);
test('stat isFile', stat.isFile(), true);
test('stat isDirectory', stat.isDirectory(), false);
test('stat size', stat.size > 0, true);
const dirStat = await fs.stat(testDir);
test('stat dir isDirectory', dirStat.isDirectory(), true);
const files = await fs.readdir(testDir);
test('readdir length', files.length >= 1, true);
test('readdir includes test.txt', files.includes('test.txt'), true);
await fs.unlink(testFile);
test('unlink removes file', await fs.exists(testFile), false);
// fd-based open/write/close
const fdFile = path.join(testDir, 'fd_test.txt');
const fd = await fs.open(fdFile, 'w');
test('open returns fd', typeof fd, 'number');
const written = await fs.write(fd, 'hello fd');
test('write returns bytes written', written, 8);
const buf = new Uint8Array([33]);
const bufWritten = await fs.write(fd, buf);
test('write buffer returns bytes written', bufWritten, 1);
await fs.close(fd);
const fdContent = fs.readFileSync(fdFile, 'utf8');
test('write wrote correct data', fdContent, 'hello fd!');
await fs.unlink(fdFile);
// writev
const wvFile = path.join(testDir, 'writev_test.txt');
const wvFd = await fs.open(wvFile, 'w');
const bufs = [new Uint8Array([65, 66]), new Uint8Array([67, 68])];
const wvWritten = await fs.writev(wvFd, bufs);
test('writev returns total bytes', wvWritten, 4);
await fs.close(wvFd);
const wvContent = fs.readFileSync(wvFile, 'utf8');
test('writev wrote correct data', wvContent, 'ABCD');
await fs.unlink(wvFile);
await fs.rmdir(testDir);
test('rmdir removes dir', await fs.exists(testDir), false);
summary();
}
void run();

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