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Add test ensuring withEnvironment flag is honored

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Mike Pennisi 2016-06-15 14:10:05 -04:00 committed by Leonardo Balter
parent 6a3837fc0f
commit 1e6cbbf7ba
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test/language/global-code/unscopables-ignored.js Normal file
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// Copyright (c) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-global-environment-records-hasbinding-n
es6id: 8.1.1.4.1
description: >
Symbol.unscopables is not referenced for the object environment of the global
environment record
info: |
1. Let envRec be the global Environment Record for which the method was invoked.
2. Let DclRec be envRec.[[DeclarativeRecord]].
3. If DclRec.HasBinding(N) is true, return true.
4. Let ObjRec be envRec.[[ObjectRecord]].
5. Return ? ObjRec.HasBinding(N).
8.1.1.2.1 HasBinding
1. Let envRec be the object Environment Record for which the method was
invoked.
2. Let bindings be the binding object for envRec.
3. Let foundBinding be ? HasProperty(bindings, N).
4. If foundBinding is false, return false.
5. If the withEnvironment flag of envRec is false, return true.
6. Let unscopables be ? Get(bindings, @@unscopables).
7. If Type(unscopables) is Object, then
a. Let blocked be ToBoolean(? Get(unscopables, N)).
b. If blocked is true, return false.
8. Return true.
features: [Symbol.unscopables]
---*/
var callCount = 0;
Object.defineProperty(this, Symbol.unscopables, {
get: function() {
callCount += 1;
}
});
this.test262 = true;
test262;
assert.sameValue(
callCount, 0, 'Did not reference @@unscopables property of global object'
);