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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/Proxy/setPrototypeOf/not-extensible-target-same-target-prototype.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.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/Proxy/setPrototypeOf/not-extensible-target-same-target-prototype.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Proxy/setPrototypeOf/not-extensible-target-same-target-prototype.js | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Proxy/setPrototypeOf/not-extensible-target-same-target-prototype.js b/js/src/tests/test262/built-ins/Proxy/setPrototypeOf/not-extensible-target-same-target-prototype.js new file mode 100644 index 0000000000..8910a2ddcd --- /dev/null +++ b/js/src/tests/test262/built-ins/Proxy/setPrototypeOf/not-extensible-target-same-target-prototype.js @@ -0,0 +1,56 @@ +// Copyright (C) 2015 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-proxy-object-internal-methods-and-internal-slots-setprototypeof-v +description: > + Handler can only return true for non-extensible targets if the given prototype + is the same as target's prototype +info: | + [[SetPrototypeOf]] (V) + + 12. Let targetProto be ? target.[[GetPrototypeOf]](). + 13. If SameValue(V, targetProto) is false, throw a TypeError exception. + 14. Return true. +features: [Proxy, Reflect, Reflect.setPrototypeOf] +---*/ + +var proto = {}; +var target = Object.setPrototypeOf({}, proto); + +Object.preventExtensions(target); + +var proxy; + +proxy = new Proxy(target, { + setPrototypeOf: function() { + return true; + } +}); + +assert.sameValue( + Reflect.setPrototypeOf(proxy, proto), + true, + "prototype arg is the same in target" +); + +var outro = {}; +proxy = new Proxy(outro, { + setPrototypeOf: function(t, p) { + Object.setPrototypeOf(t, p); + Object.preventExtensions(t); + return true; + } +}); + +assert.sameValue( + Reflect.setPrototypeOf(proxy, proto), + true, + "prototype is set to target inside handler trap" +); +assert.sameValue( + Object.getPrototypeOf(outro), + proto, + "target has the custom set prototype" +); + +reportCompare(0, 0); |