TestUtilities.cs

// <copyright file="TestUtilities.cs" company="Selenium Committers">
// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The SFC licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
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// </copyright>

using System;

namespace OpenQA.Selenium
{
    public class TestUtilities
    {
        private static IJavaScriptExecutor GetExecutor(IWebDriver driver)
        {
            return (IJavaScriptExecutor)driver;
        }

        private static string GetUserAgent(IWebDriver driver)
        {
            try
            {
                return (string)GetExecutor(driver).ExecuteScript("return navigator.userAgent;");
            }
            catch (Exception)
            {
                // Some drivers will only execute JS once a page has been loaded. Since those
                // drivers aren't Firefox or IE, we don't worry about that here.
                //
                // Non-javascript-enabled HtmlUnit throws an UnsupportedOperationException here.
                // Let's just ignore that.
                return "";
            }
        }

        public static bool IsChrome(IWebDriver driver)
        {
            return GetUserAgent(driver).Contains("Chrome");
        }

        public static bool IsFirefox(IWebDriver driver)
        {
            return GetUserAgent(driver).Contains("Firefox");
        }

        public static bool IsInternetExplorer(IWebDriver driver)
        {
            string userAgent = GetUserAgent(driver);
            return userAgent.Contains("MSIE") || userAgent.Contains("Trident");
        }

        public static bool IsIE6(IWebDriver driver)
        {
            return IsInternetExplorer(driver) && GetUserAgent(driver).Contains("MSIE 6");
        }

        public static bool IsIE10OrHigher(IWebDriver driver)
        {
            if (IsInternetExplorer(driver))
            {
                string jsToExecute = "return window.navigator.appVersion;";
                // IE9 is trident version 5.  IE9 is the start of new IE.
                string appVersionString = (string)GetExecutor(driver).ExecuteScript(jsToExecute);
                int tokenStart = appVersionString.IndexOf("MSIE ") + 5;
                int tokenEnd = appVersionString.IndexOf(";", tokenStart);
                if (tokenEnd - tokenStart > 0)
                {
                    string substring = appVersionString.Substring(tokenStart, tokenEnd - tokenStart);
                    double version = 0;
                    bool parsed = double.TryParse(substring, out version);
                    if (parsed)
                    {
                        return version >= 10;
                    }
                }
            }

            return false;
        }

        public static bool IsOldIE(IWebDriver driver)
        {
            try
            {
                string jsToExecute = "return parseInt(window.navigator.appVersion.split(' ')[0]);";
                // IE9 is trident version 5.  IE9 is the start of new IE.
                return (long)(GetExecutor(driver).ExecuteScript(jsToExecute)) < 5;
            }
            catch (Exception)
            {
                return false;
            }
        }

        public static bool IsNativeEventsEnabled(IWebDriver driver)
        {
            if (driver is IHasCapabilities hasCaps)
            {
                object cap = hasCaps.Capabilities.GetCapability(CapabilityType.HasNativeEvents);
                if (cap != null && cap is bool b)
                {
                    return b;
                }
            }

            return false;
        }
    }
}