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>
33 lines
1.1 KiB
JavaScript
33 lines
1.1 KiB
JavaScript
// Flags: --experimental-vfs
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'use strict';
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// writeFile / appendFile accept explicit { flag, mode } options.
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const common = require('../common');
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const assert = require('assert');
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const vfs = require('node:vfs');
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// writeFileSync / promises.writeFile with explicit flag and mode
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{
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const myVfs = vfs.create();
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myVfs.writeFileSync('/a.txt', 'hello', { flag: 'w', mode: 0o600 });
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assert.strictEqual(myVfs.readFileSync('/a.txt', 'utf8'), 'hello');
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myVfs.promises.writeFile('/b.txt', 'world', { flag: 'w', mode: 0o600 })
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.then(common.mustCall(() => {
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assert.strictEqual(myVfs.readFileSync('/b.txt', 'utf8'), 'world');
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}));
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}
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// appendFileSync / promises.appendFile with explicit flag and mode
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{
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const myVfs = vfs.create();
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myVfs.appendFileSync('/a.txt', 'first', { flag: 'a', mode: 0o600 });
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myVfs.appendFileSync('/a.txt', '-second', { flag: 'a' });
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assert.strictEqual(myVfs.readFileSync('/a.txt', 'utf8'), 'first-second');
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myVfs.promises.appendFile('/b.txt', 'go', { flag: 'a', mode: 0o600 })
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.then(common.mustCall(() => {
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assert.strictEqual(myVfs.readFileSync('/b.txt', 'utf8'), 'go');
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}));
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}
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