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Add invalid index Reflect.set tests
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shvaikalesh committed Feb 28, 2021
1 parent ec5d835 commit 594abe1
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// Copyright (C) 2021 Alexey Shvayka. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-integer-indexed-exotic-objects-set-p-v-receiver
description: >
If receiver is altered, `true` is returned for canonical numeric strings that are invalid indices.
Value is not coerced.
info: |
[[Set]] ( P, V, Receiver )
[...]
2. If Type(P) is String, then
a. Let numericIndex be ! CanonicalNumericIndexString(P).
b. If numericIndex is not undefined, then
i. If ! SameValue(O, Receiver) is true
[...]
ii. 1. Else if ! IsValidIntegerIndex(_O_, _numericIndex_) is *false*, return *true*.
includes: [testTypedArray.js]
features: [BigInt, TypedArray, Reflect]
---*/

var valueOfCalls = 0;
var value = {
valueOf: function() {
++valueOfCalls;
return 2n;
},
};

testWithTypedArrayConstructors(function(TA) {
var target, receiver;

[1, 1.5, -1].forEach(function(key) {
Object.defineProperty(TA.prototype, key, {
get: function() { throw new Test262Error(key + " getter should be unreachable!"); },
set: function(_v) { throw new Test262Error(key + " setter should be unreachable!"); },
configurable: true,
});


target = new TA([0n]);
receiver = {};
assert(Reflect.set(target, key, value, receiver), "Reflect.set should succeed (key: " + key + ", receiver: empty object)");
assert(!target.hasOwnProperty(key), "target[" + key + "] should not be created (receiver: empty object)");
assert(!receiver.hasOwnProperty(key), "receiver[" + key + "] should not be created (receiver: empty object)");


target = new TA([0n]);
receiver = new TA([1n]);
assert(Reflect.set(target, key, value, receiver), "Reflect.set should succeed (key: " + key + ", receiver: another typed array of the same length)");
assert(!target.hasOwnProperty(key), "target[" + key + "] should not be created (receiver: another typed array of the same length)");
assert(!receiver.hasOwnProperty(key), "receiver[" + key + "] should not be created (receiver: another typed array of the same length)");


target = new TA([0n]);
receiver = Object.defineProperty({}, key, {
get: function() { return 1n; },
set: function(_v) { throw new Test262Error(key + " setter should be unreachable!"); },
configurable: true,
});
assert(Reflect.set(target, key, value, receiver), "Reflect.set should succeed (receiver: plain object with " + key + " accessor)");
assert(!target.hasOwnProperty(key), "target[" + key + "] should not be created (receiver: plain object with " + key + " accessor)");
assert.sameValue(receiver[key], 1n, "receiver[" + key + "] should remain unchanged (receiver: plain object with " + key + " accessor)");


target = new TA([0n]);
receiver = Object.defineProperty({}, key, { value: 1n, writable: false, configurable: true });
assert(Reflect.set(target, key, value, receiver), "Reflect.set should succeed (receiver: plain object with non-writable " + key + ")");
assert(!target.hasOwnProperty(key), "target[" + key + "] should not be created (receiver: plain object with non-writable " + key + ")");
assert.sameValue(receiver[key], 1n, "receiver[" + key + "] should remain unchanged (receiver: plain object with non-writable " + key + ")");


target = new TA([0n]);
receiver = Object.preventExtensions({});
assert(Reflect.set(target, key, value, receiver), "Reflect.set should fail (key: " + key + ", receiver: non-extensible empty object)");
assert(!target.hasOwnProperty(key), "target[" + key + "] should not be created (receiver: non-extensible empty object)");
assert(!receiver.hasOwnProperty(key), "receiver[" + key + "] should not be created (receiver: non-extensible empty object)");


assert(delete TA.prototype[key]);
});


target = new TA([0n]);
receiver = new TA([1n, 1n]);
assert(Reflect.set(target, 1, value, receiver), "Reflect.set should succeed (receiver: another typed array of greater length)");
assert(!target.hasOwnProperty(1), "target[1] should not be created (receiver: another typed array of greater length)");
assert.sameValue(receiver[1], 1n, "receiver[1] should remain unchanged (receiver: another typed array of greater length)");
});

assert.sameValue(valueOfCalls, 0, "value should not be coerced");
Original file line number Diff line number Diff line change
@@ -0,0 +1,91 @@
// Copyright (C) 2021 Alexey Shvayka. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-integer-indexed-exotic-objects-set-p-v-receiver
description: >
If receiver is altered, `true` is returned for canonical numeric strings that are invalid indices.
Value is not coerced.
info: |
[[Set]] ( P, V, Receiver )
[...]
2. If Type(P) is String, then
a. Let numericIndex be ! CanonicalNumericIndexString(P).
b. If numericIndex is not undefined, then
i. If ! SameValue(O, Receiver) is true
[...]
ii. 1. Else if ! IsValidIntegerIndex(_O_, _numericIndex_) is *false*, return *true*.
includes: [testTypedArray.js]
features: [TypedArray, Reflect]
---*/

var valueOfCalls = 0;
var value = {
valueOf: function() {
++valueOfCalls;
return 2.3;
},
};

testWithTypedArrayConstructors(function(TA) {
var target, receiver;

[1, 1.5, -1].forEach(function(key) {
Object.defineProperty(TA.prototype, key, {
get: function() { throw new Test262Error(key + " getter should be unreachable!"); },
set: function(_v) { throw new Test262Error(key + " setter should be unreachable!"); },
configurable: true,
});


target = new TA([0]);
receiver = {};
assert(Reflect.set(target, key, value, receiver), "Reflect.set should succeed (key: " + key + ", receiver: empty object)");
assert(!target.hasOwnProperty(key), "target[" + key + "] should not be created (receiver: empty object)");
assert(!receiver.hasOwnProperty(key), "receiver[" + key + "] should not be created (receiver: empty object)");


target = new TA([0]);
receiver = new TA([1]);
assert(Reflect.set(target, key, value, receiver), "Reflect.set should succeed (key: " + key + ", receiver: another typed array of the same length)");
assert(!target.hasOwnProperty(key), "target[" + key + "] should not be created (receiver: another typed array of the same length)");
assert(!receiver.hasOwnProperty(key), "receiver[" + key + "] should not be created (receiver: another typed array of the same length)");


target = new TA([0]);
receiver = Object.defineProperty({}, key, {
get: function() { return 1; },
set: function(_v) { throw new Test262Error(key + " setter should be unreachable!"); },
configurable: true,
});
assert(Reflect.set(target, key, value, receiver), "Reflect.set should succeed (receiver: plain object with " + key + " accessor)");
assert(!target.hasOwnProperty(key), "target[" + key + "] should not be created (receiver: plain object with " + key + " accessor)");
assert.sameValue(receiver[key], 1, "receiver[" + key + "] should remain unchanged (receiver: plain object with " + key + " accessor)");


target = new TA([0]);
receiver = Object.defineProperty({}, key, { value: 1, writable: false, configurable: true });
assert(Reflect.set(target, key, value, receiver), "Reflect.set should succeed (receiver: plain object with non-writable " + key + ")");
assert(!target.hasOwnProperty(key), "target[" + key + "] should not be created (receiver: plain object with non-writable " + key + ")");
assert.sameValue(receiver[key], 1, "receiver[" + key + "] should remain unchanged (receiver: plain object with non-writable " + key + ")");


target = new TA([0]);
receiver = Object.preventExtensions({});
assert(Reflect.set(target, key, value, receiver), "Reflect.set should fail (key: " + key + ", receiver: non-extensible empty object)");
assert(!target.hasOwnProperty(key), "target[" + key + "] should not be created (receiver: non-extensible empty object)");
assert(!receiver.hasOwnProperty(key), "receiver[" + key + "] should not be created (receiver: non-extensible empty object)");


assert(delete TA.prototype[key]);
});


target = new TA([0]);
receiver = new TA([1, 1]);
assert(Reflect.set(target, 1, value, receiver), "Reflect.set should succeed (receiver: another typed array of greater length)");
assert(!target.hasOwnProperty(1), "target[1] should not be created (receiver: another typed array of greater length)");
assert.sameValue(receiver[1], 1, "receiver[1] should remain unchanged (receiver: another typed array of greater length)");
});

assert.sameValue(valueOfCalls, 0, "value should not be coerced");

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