using System;

using System.Linq;

using OpenQA.Selenium; // Selenium.WebDriver 3.11.2.0

using OpenQA.Selenium.Chrome; // Selenium.WebDriver.ChromeDriver 2.38.0.0

using OpenQA.Selenium.Support.UI; // Selenium.Support 3.11.2.0

using OpenQA.Selenium.Support.PageObjects;

​

namespace SearchEngineCalculator

{

    public class Program

    {

        public static void Main()

        {

            IWebDriver driver = new ChromeDriver();

            driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(10);

            driver.Manage().Window.Maximize();

            driver.Navigate().GoToUrl("www.bing.com");

            driver.FindElement(By.Id("sb_form_q")).SendKeys("Calculator");

            driver.FindElement(By.Id("sb_form_go")).Click();

            WebDriverWait wait = new WebDriverWait(driver, new TimeSpan(0, 0, 5));

            wait.Until(d => d.FindElement(By.Id("rcTB")));

            IJavaScriptExecutor js = (IJavaScriptExecutor)driver;

            string title = (string)js.ExecuteScript("document.getElementById('rcTB').textContent= " + 12 + " " + "+" + " " + 3);

            driver.FindElement(By.Id("rcEquals")).Click();

            string output = driver.FindElement(By.Id("rcTB")).Text;

            Console.Write(output);

        }

    }

​

    public class OnlineCalc

    {

        public static IWebDriver Driver

        {

            get;

            set;

        }

​

        public OnlineCalc(IWebDriver driver)

        {

            Driver = driver;

        //PageFactory.InitElements(driver,this);

        }

​

        //https://sumnersworld.wordpress.com/testing-automation/selenium-webdriver-c/c-advanced-webdriver/pagefactory-using-the-how-custom-and-by/

        [FindsBy(How = How.Custom, Using = "rcOne", CustomFinderType = typeof (CustomBy))]

        [CacheLookup]

        public static IWebElement ButtonOne

        {

            get;

            set;

        }

​

        [FindsBy(How = How.Id, Using = "")]

        [CacheLookup]

        public static IWebElement ButtonTwo

        {

            get;

            set;

        }

​

        [FindsBy(How = How.Id, Using = "")]

        [CacheLookup]

        public static IWebElement ButtonThree

        {

            get;

            set;

        }

​

        [FindsBy(How = How.Id, Using = "")]

        [CacheLookup]

        public static IWebElement ButtonFour

        {

            get;

            set;

        }

​

        [FindsBy(How = How.Id, Using = "")]

        [CacheLookup]

        public static IWebElement ButtonFive

        {

            get;

            set;

        }

​

        [FindsBy(How = How.Id, Using = "")]

        [CacheLookup]

        public static IWebElement ButtonSix

        {

            get;

            set;

        }

​

        [FindsBy(How = How.Id, Using = "")]

        [CacheLookup]

        public static IWebElement ButtonSeven

        {

            get;

            set;

        }

​

        [FindsBy(How = How.Id, Using = "")]

        [CacheLookup]

        public static IWebElement ButtonEight

        {

            get;

            set;

        }

​

        [FindsBy(How = How.Id, Using = "")]

        [CacheLookup]

        public static IWebElement ButtonNine

        {

            get;

            set;

        }

​

        // General

        [FindsBy(How = How.Id, Using = "")]

        [CacheLookup]

        public static IWebElement ButtonPeriod

        {

            get;

            set;

        }

​

        [FindsBy(How = How.Id, Using = "")]

        [CacheLookup]

        public static IWebElement ButtonEqualsTo

        {

            get;

            set;

        }

​

        [FindsBy(How = How.Id, Using = "")]

        [CacheLookup]

        public static IWebElement TextCalcResult

        {

            get;

            set;

        }

​

        // Operations 

        [FindsBy(How = How.Id, Using = "")]

        [CacheLookup]

        public static IWebElement ButtonAdd

        {

            get;

            set;

        }

​

        [FindsBy(How = How.Id, Using = "")]

        [CacheLookup]

        public static IWebElement ButtonMinus

        {

            get;

            set;

        }

​

        [FindsBy(How = How.Id, Using = "")]

        [CacheLookup]

        public static IWebElement ButtonMultiply

        {

            get;

            set;

        }

​

        [FindsBy(How = How.Id, Using = "")]

        [CacheLookup]

        public static IWebElement ButtonDivide

        {

            get;

            set;

        }

​

        public string Calculate(double firstNum, double secondNum, CalOperations operation)

        {

            PressValueInCalc(firstNum);

            PerformOperation(operation);

            PressValueInCalc(secondNum);

            ButtonEqualsTo.Click();

            return TextCalcResult.Text;

        }

​

        private void PressValueInCalc(double number)

        {

            int itsNum = -1;

            var numInChar = number.ToString().ToArray();

            foreach (var num in numInChar)

            {

                var isNumOrSymbol = int.TryParse(num.ToString(), out itsNum);

                if (itsNum != -1)

                {

                    switch (itsNum)

                    {

                        case 1:

                            ButtonOne.Click();

                            break;

                        case 2:

                            ButtonTwo.Click();

                            break;

                        case 3:

                            ButtonThree.Click();

                            break;

                        case 4:

                            ButtonFour.Click();

                            break;

                        case 5:

                            ButtonFive.Click();

                            break;

                        case 6:

                            ButtonSix.Click();

                            break;

                        case 7:

                            ButtonSeven.Click();

                            break;

                        case 8:

                            ButtonEight.Click();

                            break;

                        case 9:

                            ButtonNine.Click();

                            break;

                    }

                }

                else

                {

                    ButtonPeriod.Click();

                }

            }

        }

​

        private void PerformOperation(CalOperations operation)

        {

            switch (operation)

            {

                case CalOperations.Add:

                    ButtonAdd.Click();

                    break;

                case CalOperations.Multiply:

                    ButtonMultiply.Click();

                    break;

                case CalOperations.Division:

                    ButtonDivide.Click();

                    break;

                case CalOperations.Substract:

                    ButtonMinus.Click();

                    break;

            }

        }

    }

​

    public enum CalOperations

    {

        Add,

        Multiply,

        Substract,

        Division

    }

​

    public class CustomBy : By

    {

        public CustomBy(string customByString)

        {

            FindElementMethod = context =>

            {

                IWebElement mockElement = OnlineCalc.Driver.FindElement(By.Id(customByString));

                return mockElement;

            }

​

            ;

        }

    }

}