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Add test for throwing WrappedFunctionCreate
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legendecas authored and rwaldron committed Mar 17, 2022
1 parent 81895b1 commit f71d5e2
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// Copyright (C) 2022 Chengzhong Wu. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-wrapped-function-exotic-objects-call-thisargument-argumentslist
description: >
WrappedFunctionCreate throws a TypeError the target is a revoked proxy.
info: |
WrappedFunctionCreate ( callerRealm: a Realm Record, Target: a function object, )
1. Let target be F.[[WrappedTargetFunction]].
2. Assert: IsCallable(target) is true.
3. Let callerRealm be F.[[Realm]].
4. NOTE: Any exception objects produced after this point are associated with callerRealm.
5. Let targetRealm be ? GetFunctionRealm(target).
...
GetFunctionRealm ( obj )
...
3. If obj is a Proxy exotic object, then
a. If obj.[[ProxyHandler]] is null, throw a TypeError exception.
...
features: [ShadowRealm]
---*/

assert.sameValue(
typeof ShadowRealm.prototype.evaluate,
'function',
'This test must fail if ShadowRealm.prototype.evaluate is not a function'
);

const r = new ShadowRealm();

const fn = r.evaluate(`
globalThis.revocable = Proxy.revocable(() => {}, {});
globalThis.revocable.proxy;
`);
r.evaluate('revocable.revoke()');
assert.throws(TypeError, () => fn());
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// Copyright (C) 2022 Chengzhong Wu. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-wrappedfunctioncreate
description: >
WrappedFunctionCreate throws a TypeError if the accessing target's property may throw.
info: |
WrappedFunctionCreate ( callerRealm: a Realm Record, Target: a function object, )
...
7. Let result be CopyNameAndLength(wrapped, Target).
...
CopyNameAndLength ( F: a function object, Target: a function object, optional prefix: a String, optional argCount: a Number, )
...
3. Let targetHasLength be ? HasOwnProperty(Target, "length").
4. If targetHasLength is true, then
a. Let targetLen be ? Get(Target, "length").
...
6. Let targetName be ? Get(Target, "name").
features: [ShadowRealm]
---*/

assert.sameValue(
typeof ShadowRealm.prototype.evaluate,
'function',
'This test must fail if ShadowRealm.prototype.evaluate is not a function'
);

const r = new ShadowRealm();

assert.throws(TypeError, () => r.evaluate(`
const revocable = Proxy.revocable(() => {}, {});
revocable.revoke();
revocable.proxy;
`), 'TypeError on wrapping a revoked callable proxy');

assert.throws(TypeError, () => r.evaluate(`
const fn = () => {};
Object.defineProperty(fn, 'name', {
get() {
throw new Error();
},
});
fn;
`), 'TypeError on wrapping a fn with throwing name accessor');

assert.throws(TypeError, () => r.evaluate(`
const fn = () => {};
Object.defineProperty(fn, 'length', {
get() {
throw new Error();
},
});
fn;
`), 'TypeError on wrapping a fn with throwing length accessor');

assert.throws(TypeError, () => r.evaluate(`
const proxy = new Proxy(() => {}, {
getOwnPropertyDescriptor(target, key) {
throw new Error();
},
});
proxy;
`), 'TypeError on wrapping a callable proxy with throwing getOwnPropertyDescriptor trap');

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