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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/test262/built-ins/Object/prototype/__proto__/set-cycle.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/test262/built-ins/Object/prototype/__proto__/set-cycle.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Object/prototype/__proto__/set-cycle.js | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/prototype/__proto__/set-cycle.js b/js/src/tests/test262/built-ins/Object/prototype/__proto__/set-cycle.js new file mode 100644 index 0000000000..226cef02ca --- /dev/null +++ b/js/src/tests/test262/built-ins/Object/prototype/__proto__/set-cycle.js @@ -0,0 +1,37 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-object.prototype.__proto__ +es6id: B.2.2.1 +description: Cycle detection +info: | + [...] + 4. Let status be ? O.[[SetPrototypeOf]](proto). + 5. If status is false, throw a TypeError exception. + + 9.1.2.1 OrdinarySetPrototypeOf + + [...] + 6. Let p be V. + 7. Let done be false. + 8. Repeat while done is false, + a. If p is null, let done be true. + b. Else if SameValue(p, O) is true, return false. + c. Else, + i. If the [[GetPrototypeOf]] internal method of p is not the ordinary + object internal method defined in 9.1.1, let done be true. + ii. Else, let p be the value of p's [[Prototype]] internal slot. +features: [__proto__] +---*/ + +var root = {}; +var intermediary = Object.create(root); +var leaf = Object.create(intermediary); + +assert.throws(TypeError, function() { + root.__proto__ = leaf; +}); + +assert.sameValue(Object.getPrototypeOf(root), Object.prototype); + +reportCompare(0, 0); |