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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /js/src/tests/non262/Intl/Collator/construct-newtarget.js | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/non262/Intl/Collator/construct-newtarget.js')
-rw-r--r-- | js/src/tests/non262/Intl/Collator/construct-newtarget.js | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/js/src/tests/non262/Intl/Collator/construct-newtarget.js b/js/src/tests/non262/Intl/Collator/construct-newtarget.js new file mode 100644 index 0000000000..5db1abf373 --- /dev/null +++ b/js/src/tests/non262/Intl/Collator/construct-newtarget.js @@ -0,0 +1,81 @@ +// |reftest| skip-if(!this.hasOwnProperty("Intl")) + +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + + +// Test subclassing %Intl.Collator% works correctly. +class MyCollator extends Intl.Collator {} + +var obj = new MyCollator(); +assertEq(obj instanceof MyCollator, true); +assertEq(obj instanceof Intl.Collator, true); +assertEq(Object.getPrototypeOf(obj), MyCollator.prototype); + +obj = Reflect.construct(MyCollator, []); +assertEq(obj instanceof MyCollator, true); +assertEq(obj instanceof Intl.Collator, true); +assertEq(Object.getPrototypeOf(obj), MyCollator.prototype); + +obj = Reflect.construct(MyCollator, [], MyCollator); +assertEq(obj instanceof MyCollator, true); +assertEq(obj instanceof Intl.Collator, true); +assertEq(Object.getPrototypeOf(obj), MyCollator.prototype); + +obj = Reflect.construct(MyCollator, [], Intl.Collator); +assertEq(obj instanceof MyCollator, false); +assertEq(obj instanceof Intl.Collator, true); +assertEq(Object.getPrototypeOf(obj), Intl.Collator.prototype); + + +// Set a different constructor as NewTarget. +obj = Reflect.construct(MyCollator, [], Array); +assertEq(obj instanceof MyCollator, false); +assertEq(obj instanceof Intl.Collator, false); +assertEq(obj instanceof Array, true); +assertEq(Object.getPrototypeOf(obj), Array.prototype); + +obj = Reflect.construct(Intl.Collator, [], Array); +assertEq(obj instanceof Intl.Collator, false); +assertEq(obj instanceof Array, true); +assertEq(Object.getPrototypeOf(obj), Array.prototype); + + +// The prototype defaults to %CollatorPrototype% if null. +function NewTargetNullPrototype() {} +NewTargetNullPrototype.prototype = null; + +obj = Reflect.construct(Intl.Collator, [], NewTargetNullPrototype); +assertEq(obj instanceof Intl.Collator, true); +assertEq(Object.getPrototypeOf(obj), Intl.Collator.prototype); + +obj = Reflect.construct(MyCollator, [], NewTargetNullPrototype); +assertEq(obj instanceof MyCollator, false); +assertEq(obj instanceof Intl.Collator, true); +assertEq(Object.getPrototypeOf(obj), Intl.Collator.prototype); + + +// "prototype" property is retrieved exactly once. +var trapLog = [], getLog = []; +var ProxiedConstructor = new Proxy(Intl.Collator, new Proxy({ + get(target, propertyKey, receiver) { + getLog.push(propertyKey); + return Reflect.get(target, propertyKey, receiver); + } +}, { + get(target, propertyKey, receiver) { + trapLog.push(propertyKey); + return Reflect.get(target, propertyKey, receiver); + } +})); + +obj = Reflect.construct(Intl.Collator, [], ProxiedConstructor); +assertEqArray(trapLog, ["get"]); +assertEqArray(getLog, ["prototype"]); +assertEq(obj instanceof Intl.Collator, true); +assertEq(Object.getPrototypeOf(obj), Intl.Collator.prototype); + + +if (typeof reportCompare === "function") + reportCompare(0, 0); |