Skip to content

Added test case where Array.from throws #4903

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
G-Lee1031 wants to merge 1 commit into
base: main
Choose a base branch
from
+20 −0
Open

Added test case where Array.from throws #4903

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
20 changes: 20 additions & 0 deletions test/built-ins/Array/from/from-throws-construct.js
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,20 @@
// Copyright (C) 2026 Garham Lee. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: sec-array.from
description: >
Array.from throws in construct operation.
info: |
Array.from ( _items_ [ , _mapper_ [ , _thisArg_ ] ] )

1. Let _C_ be the *this* value.

7. Let _arrayLike_ be ! ToObject(_items_).
8. Let _len_ be ? LengthOfArrayLike(_arrayLike_).
9. If IsConstructor(_C_) is *true*, then
a. Let _A_ be ? Construct(_C_, « 𝔽(_len_) »).
---*/
assert.throws(Test262Error, function () {
Array.from.call(function() {throw new Test262Error}, 0);
}, "Array.from throws")
Loading