// 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-string.prototype.tolowercase description: The "this" value must be object-coercible info: | 1. Let O be ? RequireObjectCoercible(this value). ---*/ var toLowerCase = String.prototype.toLowerCase; assert.sameValue(typeof toLowerCase, 'function'); assert.throws(TypeError, function() { toLowerCase.call(undefined); }, 'undefined'); assert.throws(TypeError, function() { toLowerCase.call(null); }, 'null'); reportCompare(0, 0);