xref: /external/chromium_org/v8/test/intl/collator/protected-icu-internals.js

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// Internal object we got from native code should not be writable,
// configurable or enumerable. One can still change its public properties, but
// we don't use them to do actual work.

var collator = new Intl.Collator([]);

// Direct write should fail.
collator.collator = {'zzz':'some random object'};

assertFalse(collator.collator.hasOwnProperty('zzz'));

// Try redefining the property.
var didThrow = false;
try {
  Object.defineProperty(collator, 'collator', {value: undefined});
} catch(e) {
  didThrow = true;
}
assertTrue(didThrow);

// Try deleting the property.
assertFalse(delete collator.collator);