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Improve Proxy/set call parameters coverage (#2347)

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* Tweak front matter of basic test

* Simplify basic test

* Add test for proxy as prototype

* Add test for proxy as prototype and __proto__
This commit is contained in:
Alexey Shvayka 2019-09-18 19:30:28 +03:00 committed by Leo Balter
parent ff83fb2922
commit 256f5f4b46
3 changed files with 116 additions and 6 deletions
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55
test/built-ins/Proxy/set/call-parameters-prototype-dunder-proto.js Normal file
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@ -0,0 +1,55 @@
// Copyright (C) 2019 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-set-p-v-receiver
description: >
Ordinary [[Set]] forwards call to Proxy "set" trap with correct arguments.
Property name is "__proto__".
info: |
OrdinarySet ( O, P, V, Receiver )
...
3. Return OrdinarySetWithOwnDescriptor(O, P, V, Receiver, ownDesc).
OrdinarySetWithOwnDescriptor ( O, P, V, Receiver, ownDesc )
...
2. If ownDesc is undefined, then
a. Let parent be ? O.[[GetPrototypeOf]]().
b. If parent is not null, then
i. Return ? parent.[[Set]](P, V, Receiver).
[[Set]] ( P, V, Receiver )
...
8. Let booleanTrapResult be ! ToBoolean(? Call(trap, handler, « target, P, V, Receiver »)).
...
12. Return true.
features: [Proxy]
---*/
var _handler, _target, _prop, _value, _receiver;
var target = {};
var handler = {
set: function(target, prop, value, receiver) {
_handler = this;
_target = target;
_prop = prop;
_value = value;
_receiver = receiver;
return true;
},
};
var proxy = new Proxy(target, handler);
var receiver = Object.create(proxy);
var prop = '__proto__';
var value = {};
receiver[prop] = value;
assert.sameValue(_handler, handler, 'handler object is the trap context');
assert.sameValue(_target, target, 'first argument is the target object');
assert.sameValue(_prop, prop, 'second argument is the property name');
assert.sameValue(_value, value, 'third argument is the new value');
assert.sameValue(_receiver, receiver, 'fourth argument is the receiver object');

52
test/built-ins/Proxy/set/call-parameters-prototype.js Normal file
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// Copyright (C) 2019 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-set-p-v-receiver
description: >
Ordinary [[Set]] forwards call to Proxy "set" trap with correct arguments.
info: |
OrdinarySet ( O, P, V, Receiver )
...
3. Return OrdinarySetWithOwnDescriptor(O, P, V, Receiver, ownDesc).
OrdinarySetWithOwnDescriptor ( O, P, V, Receiver, ownDesc )
...
2. If ownDesc is undefined, then
a. Let parent be ? O.[[GetPrototypeOf]]().
b. If parent is not null, then
i. Return ? parent.[[Set]](P, V, Receiver).
[[Set]] ( P, V, Receiver )
...
8. Let booleanTrapResult be ! ToBoolean(? Call(trap, handler, « target, P, V, Receiver »)).
...
12. Return true.
features: [Proxy]
---*/
var _handler, _target, _prop, _value, _receiver;
var target = {};
var handler = {
set: function(target, prop, value, receiver) {
_handler = this;
_target = target;
_prop = prop;
_value = value;
_receiver = receiver;
return true;
},
};
var proxy = new Proxy(target, handler);
var receiver = Object.create(proxy);
receiver.prop = 'value';
assert.sameValue(_handler, handler, 'handler object is the trap context');
assert.sameValue(_target, target, 'first argument is the target object');
assert.sameValue(_prop, 'prop', 'second argument is the property name');
assert.sameValue(_value, 'value', 'third argument is the new value');
assert.sameValue(_receiver, receiver, 'fourth argument is the receiver object');

15
test/built-ins/Proxy/set/call-parameters.js
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@ -1,13 +1,16 @@
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.9
esid: sec-proxy-object-internal-methods-and-internal-slots-set-p-v-receiver
description: >
[[Set]] ( P, V, Receiver)
9. Let booleanTrapResult be ToBoolean(Call(trap, handler, «target, P, V,
Receiver»)).
Proxy "set" trap is called with correct arguments.
info: |
[[Set]] ( P, V, Receiver )
...
8. Let booleanTrapResult be ! ToBoolean(? Call(trap, handler, « target, P, V, Receiver »)).
...
12. Return true.
features: [Proxy]
---*/
@ -20,7 +23,7 @@ var handler = {
_prop = prop;
_value = value;
_receiver = receiver;
return t[prop] = value;
return true;
}
};
var p = new Proxy(target, handler);