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Added coverage for abrupt completion where ToString throws because of getter #4875

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Merged
ptomato merged 1 commit into from
Jan 29, 2026
Merged

Added coverage for abrupt completion where ToString throws because of getter #4875

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25 changes: 25 additions & 0 deletions test/built-ins/Error/prototype/toString/tostring-get-throws.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,25 @@
// Copyright (C) 2026 Garham Lee. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: sec-error.prototype.tostring
description: >
Error.prototype.toString should throw when name or message getter throws
info: |
Error.prototype.toString ( )

1. Let _O_ be the *this* value.

3. Let _name_ be ? Get(_O_, *"name"*).

5. Let _msg_ be ? Get(_O_, *"message"*).
---*/
//Check #1
assert.throws(Test262Error, function() {
Error.prototype.toString.call({get name () {throw new Test262Error;}});
}, "name field getter should throw to cover abrupt completion return case in step 3")

//Check #2
assert.throws(Test262Error, function() {
Error.prototype.toString.call({get message () {throw new Test262Error;}});
}, "message field getter should throw to cover abrupt completion return case in step 5")