diff options
Diffstat (limited to 'tests/node_compat/test/parallel/test-vm-property-not-on-sandbox.js')
-rw-r--r-- | tests/node_compat/test/parallel/test-vm-property-not-on-sandbox.js | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/tests/node_compat/test/parallel/test-vm-property-not-on-sandbox.js b/tests/node_compat/test/parallel/test-vm-property-not-on-sandbox.js new file mode 100644 index 000000000..360a5dabf --- /dev/null +++ b/tests/node_compat/test/parallel/test-vm-property-not-on-sandbox.js @@ -0,0 +1,44 @@ +// deno-fmt-ignore-file +// deno-lint-ignore-file + +// Copyright Joyent and Node contributors. All rights reserved. MIT license. +// Taken from Node 18.12.1 +// This file is automatically generated by `tests/node_compat/runner/setup.ts`. Do not modify this file manually. + +'use strict'; +require('../common'); +const assert = require('assert'); +const vm = require('vm'); + +// This, admittedly contrived, example tests an edge cases of the vm module. +// +// The GetterCallback explicitly checks the global_proxy() if a property is +// not found on the sandbox. In the following test, the explicit check +// inside the callback yields different results than deferring the +// check until after the callback. The check is deferred if the +// callback does not intercept, i.e., if args.GetReturnValue().Set() is +// not called. + +// Check that the GetterCallback explicitly calls GetRealNamedProperty() +// on the global proxy if the property is not found on the sandbox. +// +// foo is not defined on the sandbox until we call CopyProperties(). +// In the GetterCallback, we do not find the property on the sandbox and +// get the property from the global proxy. Since the return value is +// the sandbox, we replace it by +// the global_proxy to keep the correct identities. +// +// This test case is partially inspired by +// https://github.com/nodejs/node/issues/855 +const sandbox = { console }; +sandbox.document = { defaultView: sandbox }; +vm.createContext(sandbox); +const code = `Object.defineProperty( + this, + 'foo', + { get: function() {return document.defaultView} } + ); + var result = foo === this;`; + +vm.runInContext(code, sandbox); +assert.strictEqual(sandbox.result, true); |