node/test/parallel/test-fs-filehandle-use-after-close.js

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'use strict';
const common = require('../common');
const assert = require('assert');
const fs = require('fs').promises;
(async () => {
const filehandle = await fs.open(__filename);
assert.notStrictEqual(filehandle.fd, -1);
await filehandle.close();
assert.strictEqual(filehandle.fd, -1);
// Open another file handle first. This would typically receive the fd
// that `filehandle` previously used. In earlier versions of Node.js, the
// .stat() call would then succeed because it still used the original fd;
// See https://github.com/nodejs/node/issues/31361 for more details.
const otherFilehandle = await fs.open(process.execPath);
assert.rejects(() => filehandle.stat(), {
code: 'EBADF',
syscall: 'fstat'
});
await otherFilehandle.close();
})().then(common.mustCall());