tyler.durden
/
test262
mirror of https://github.com/tc39/test262.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Test WrappedFunction properties

This commit is contained in:
legendecas 2022-02-04 02:33:07 +08:00 committed by Rick Waldron
parent d71cf3a339
commit d5d9f66a8f
4 changed files with 273 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
test/built-ins/ShadowRealm/WrappedFunction/length-throws-typeerror.js Normal file
View File

@ -0,0 +1,36 @@
// 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 from its caller realm.
info: |
WrappedFunctionCreate ( callerRealm: a Realm Record, Target: a function object, )
...
7. Let result be CopyNameAndLength(wrapped, Target).
8. If result is an Abrupt Completion, 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();
assert.throws(TypeError, r.evaluate(`
function fn() {}
Object.defineProperty(fn, 'length', {
get: () => {
throw new Error('blah');
},
enumerable: false,
configurable: true,
});
fn;
`), 'expect a TypeError on length getter throwing');

121
test/built-ins/ShadowRealm/WrappedFunction/length.js Normal file
View File

@ -0,0 +1,121 @@
// 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: >
The value of WrappedFunction.name is copied from the target function
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, prefix: a String, optional argCount: a Number, )
1. If argCount is undefined, then set argCount to 0.
2. Let L be 0.
3. Let targetHasLength be ? HasOwnProperty(Target, "length").
4. If targetHasLength is true, then
a. Let targetLen be ? Get(Target, "length").
b. If Type(targetLen) is Number, then
i. If targetLen is +∞𝔽, set L to +∞.
ii. Else if targetLen is -∞𝔽, set L to 0.
iii. Else,
1. Let targetLenAsInt be ! ToIntegerOrInfinity(targetLen).
2. Assert: targetLenAsInt is finite.
3. Set L to max(targetLenAsInt - argCount, 0).
5. Perform ! SetFunctionLength(F, L).
...
SetFunctionLength ( F, length )
...
2. Return ! DefinePropertyOrThrow(F, "length", PropertyDescriptor { [[Value]]: 𝔽(length), [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true }).
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();
let wrapped = r.evaluate(`
function fn(foo, bar) {}
fn;
`);
verifyProperty(wrapped, "length", {
value: 2,
enumerable: false,
writable: false,
configurable: true,
});
wrapped = r.evaluate(`
function fn() {}
delete fn.length;
fn;
`);
verifyProperty(wrapped, "length", {
value: 0,
enumerable: false,
writable: false,
configurable: true,
});
wrapped = r.evaluate(`
function fn() {}
Object.defineProperty(fn, 'length', {
get: () => Infinity,
enumerable: false,
configurable: true,
});
fn;
`);
verifyProperty(wrapped, "length", {
value: Infinity,
enumerable: false,
writable: false,
configurable: true,
});
wrapped = r.evaluate(`
function fn() {}
Object.defineProperty(fn, 'length', {
get: () => -Infinity,
enumerable: false,
configurable: true,
});
fn;
`);
verifyProperty(wrapped, "length", {
value: 0,
enumerable: false,
writable: false,
configurable: true,
});
wrapped = r.evaluate(`
function fn() {}
Object.defineProperty(fn, 'length', {
get: () => -1,
enumerable: false,
configurable: true,
});
fn;
`);
verifyProperty(wrapped, "length", {
value: 0,
enumerable: false,
writable: false,
configurable: true,
});

36
test/built-ins/ShadowRealm/WrappedFunction/name-throws-typeerror.js Normal file
View File

@ -0,0 +1,36 @@
// 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 from its caller realm.
info: |
WrappedFunctionCreate ( callerRealm: a Realm Record, Target: a function object, )
...
7. Let result be CopyNameAndLength(wrapped, Target).
8. If result is an Abrupt Completion, 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();
assert.throws(TypeError, r.evaluate(`
function fn() {}
Object.defineProperty(fn, 'name', {
get: () => {
throw new Error('blah');
},
enumerable: false,
configurable: true,
});
fn;
`), 'expect a TypeError on name getter throwing');

80
test/built-ins/ShadowRealm/WrappedFunction/name.js Normal file
View File

@ -0,0 +1,80 @@
// 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: >
The value of WrappedFunction.name is copied from the target function
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, prefix: a String, optional argCount: a Number, )
...
6. Let targetName be ? Get(Target, "name").
7. If Type(targetName) is not String, set targetName to the empty String.
8. Perform ! SetFunctionName(F, targetName, prefix).
SetFunctionName ( F, name [ , prefix ] )
...
6. Return ! DefinePropertyOrThrow(F, "name", PropertyDescriptor { [[Value]]: name, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true }).
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();
let wrapped = r.evaluate(`
function fn() {}
fn;
`);
verifyProperty(wrapped, "name", {
value: "fn",
enumerable: false,
writable: false,
configurable: true,
});
// The name property is an accessor.
wrapped = r.evaluate(`
function fn() {}
Object.defineProperty(fn, 'name', {
get: () => "bar",
enumerable: false,
configurable: true,
});
fn;
`);
verifyProperty(wrapped, "name", {
value: "bar",
enumerable: false,
writable: false,
configurable: true,
});
// The value of fn.name is not a string.
wrapped = r.evaluate(`
function fn() {}
Object.defineProperty(fn, 'name', {
get: () => 1,
enumerable: false,
configurable: true,
});
fn;
`);
verifyProperty(wrapped, "name", {
value: "",
enumerable: false,
writable: false,
configurable: true,
});