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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* @fileoverview Assertion support.
*/
/**
* Simple common assertion API
* @param {*} condition The condition to test. Note that this may be used to
* test whether a value is defined or not, and we don't want to force a
* cast to Boolean.
* @param {string=} opt_message A message to use in any error.
*/
function assert(condition, opt_message) {
'use strict';
if (!condition) {
var msg = 'Assertion failed';
if (opt_message)
msg = msg + ': ' + opt_message;
throw new Error(msg);
}
}
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