<!DOCTYPE html>
<script src="../../resources/js-test-pre.js"></script>
<script>
description("Tests that operations marked as [Unforgeable] are indeed readonly.");

function className(object) {
    return Object.prototype.toString.call(object).match(/^\[object\s(.*)\]$/)[1];
}

function checkReadOnly(object, propertyName)
{
    testObject = object;
    testPropertyName = propertyName;

    debug("");
    debug("- " + className(object) + "." + propertyName);
    shouldBeFalse("Object.getOwnPropertyDescriptor(testObject, testPropertyName).writable");
    // Non strict mode.
    shouldNotThrow("testObject[testPropertyName] = false");
    shouldNotBe("testObject[testPropertyName]", "false");
    // Strict mode.
    shouldThrow("'use strict'; testObject[testPropertyName] = 3", "'TypeError: Attempted to assign to readonly property.'");
    shouldNotBe("testObject[testPropertyName]", "3");
}

debug("* Location (non refied)");
checkReadOnly(location, "reload");
checkReadOnly(location, "assign");
checkReadOnly(location, "replace");

debug("");
debug("* Location (reified)");
// Reify location.
location.newProperty = true;
delete location.newProperty;
// Test again.
checkReadOnly(location, "reload");
checkReadOnly(location, "assign");
checkReadOnly(location, "replace");

debug("");
</script>
<script src="../../resources/js-test-post.js"></script>