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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/has/trap-is-null-target-is-proxy.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/Proxy/has/trap-is-null-target-is-proxy.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Proxy/has/trap-is-null-target-is-proxy.js | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Proxy/has/trap-is-null-target-is-proxy.js b/js/src/tests/test262/built-ins/Proxy/has/trap-is-null-target-is-proxy.js new file mode 100644 index 0000000000..72b4443c95 --- /dev/null +++ b/js/src/tests/test262/built-ins/Proxy/has/trap-is-null-target-is-proxy.js @@ -0,0 +1,46 @@ +// Copyright (C) 2020 Alexey Shvayka. 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-hasproperty-p +description: > + If "has" trap is null or undefined, [[HasProperty]] call is properly + forwarded to [[ProxyTarget]] (which is also a Proxy object). +info: | + [[HasProperty]] ( P ) + + [...] + 5. Let target be O.[[ProxyTarget]]. + 6. Let trap be ? GetMethod(handler, "has"). + 7. If trap is undefined, then + a. Return ? target.[[HasProperty]](P). +features: [Proxy, Symbol, Reflect, Array.prototype.includes] +---*/ + +var stringTarget = new Proxy(new String("str"), {}); +var stringProxy = new Proxy(stringTarget, { + get: null, +}); + +assert(Reflect.has(stringProxy, "length")); +assert(0 in stringProxy); +assert(!(4 in stringProxy)); + + +var sym = Symbol(); +var target = new Proxy({}, { + has: function(_target, key) { + return [sym, "6", "foo"].includes(key); + }, +}); + +var proxy = new Proxy(target, { + get: null, +}); + +assert(Reflect.has(proxy, sym)); +assert("6" in proxy); +assert("foo" in Object.create(proxy)); +assert(!("bar" in proxy)); + +reportCompare(0, 0); |