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load(libdir + "asserts.js");
function f(arr, v1, v2)
{
// Ensure array_push_slowly is called by passing more than one argument.
arr.push(v1, v2);
}
function basic()
{
// Use a much-greater capacity than the eventual non-writable length.
var a = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15];
Object.defineProperty(a, "length", { writable: false, value: 6 });
assertThrowsInstanceOf(() => f(a, 8675309, 3141592), TypeError);
assertEq(a.hasOwnProperty(6), false);
assertEq(a[6], undefined);
assertEq(a.hasOwnProperty(7), false);
assertEq(a[7], undefined);
assertEq(a.length, 6);
}
basic();
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