c9562ddb82Adds the node:vfs builtin module with VirtualFileSystem and provider classes. No integration with fs, modules, or SEA. Assisted-by: Claude-Opus4.7 Signed-off-by: Matteo Collina <hello@matteocollina.com> PR-URL: https://github.com/nodejs/node/pull/63115 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Paolo Insogna <paolo@cowtech.it> Reviewed-By: Robert Nagy <ronagy@icloud.com> Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
65 lines
1.8 KiB
JavaScript
65 lines
1.8 KiB
JavaScript
// Flags: --experimental-vfs
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'use strict';
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// Error paths in VFS streams: missing files, EBADF on closed fds,
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// destroyed streams, and write to a path under a missing parent.
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const common = require('../common');
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const vfs = require('node:vfs');
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const myVfs = vfs.create();
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// Read of a nonexistent file emits 'error'
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{
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const stream = myVfs.createReadStream('/missing.txt');
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stream.on('error', common.expectsError({
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code: 'ENOENT',
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}));
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}
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// Read on a stream whose fd has been pre-closed → EBADF on first _read
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{
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myVfs.writeFileSync('/x.txt', 'hi');
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const fd = myVfs.openSync('/x.txt');
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const rs = myVfs.createReadStream('/x.txt', { fd, autoClose: false });
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myVfs.closeSync(fd);
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rs.on('error', common.expectsError({
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code: 'EBADF',
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}));
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rs.resume();
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}
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// Read stream with autoClose:true after the fd is invalidated — covers the
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// close-error swallow path inside the stream's #close.
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{
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myVfs.writeFileSync('/cl.txt', 'data');
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const fd = myVfs.openSync('/cl.txt');
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const rs = myVfs.createReadStream('/cl.txt', { fd, autoClose: true });
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myVfs.closeSync(fd);
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rs.on('error', common.expectsError());
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rs.resume();
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}
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// WriteStream synchronously failing to open → destroys on next tick
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{
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const ws = myVfs.createWriteStream('/missing-dir/foo.txt', { flags: 'wx' });
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ws.on('error', common.expectsError());
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}
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// WriteStream destroyed before write() — covers the destroyed-true branch
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// in _write.
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{
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const ws = myVfs.createWriteStream('/wd.txt');
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ws.on('error', () => {});
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ws.destroy(new Error('boom'));
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}
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// _write errors when writeSync throws (closed fd)
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{
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myVfs.writeFileSync('/wfd.txt', '');
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const fd = myVfs.openSync('/wfd.txt', 'w');
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const ws = myVfs.createWriteStream('/wfd.txt', { fd, autoClose: false });
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myVfs.closeSync(fd);
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ws.on('error', common.expectsError());
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ws.write('x');
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}
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