Run Selenium tests in multiple browsers with a base class

Question

Let's say I Have code:

namespace SeleniumTests { [TestFixture(typeof(FirefoxDriver))] [TestFixture(typeof(InternetExplorerDriver))] public class TestWithMultipleBrowsers<TWebDriver> where TWebDriver : IWebDriver, new() { private IWebDriver driver; [SetUp] public void CreateDriver () { this.driver = new TWebDriver(); } [Test] public void GoogleTest() { driver.Navigate().GoToUrl("http://www.google.com/"); IWebElement query = driver.FindElement(By.Name("q")); query.SendKeys("Bread" + Keys.Enter); Thread.Sleep(2000); Assert.AreEqual("bread - Google Search", driver.Title); driver.Quit(); } } }

I want block

 [SetUp] public void CreateDriver () { this.driver = new TWebDriver(); }

move to base class. But I do not know in this case how inherited from the base class. How do I handle <TWebDriver> where TWebDriver: IWebDriver, new ()?

Good question, but I look at the [SetUp] as a Unit Test Constructor almost. What I do is very similar but instead of creating the new Instance in the [SetUp] I call off to a static method that takes in a Generic IWebDriver and does lots of setup like connects to the Selenium GRID server, sets window size etc. — Jamie Rees
– Jamie Rees, Commented Mar 16, 2015 at 15:52

Jonathan Kittell · Accepted Answer · 2015-03-16 14:32:22Z

This doesn't use generics like your example but instead kind of works like dependency injection.

You need a method to create the instance of the webdriver.

public class DriverFactory { public IWebDriver Driver { get; set; } public enum DriverType { IE, Firefox, Chrome } public IWebDriver GetDriver(DriverType typeOfDriver) { if (typeOfDriver == DriverType.IE) return new InternetExplorerDriver(); if (typeOfDriver == DriverType.Chrome) return new ChromeDriver(); return new FirefoxDriver(); // return firefox by default } }

Then call from your setup:

[Setup] public void CreateDriver() { var driverFactory = new DriverFactory(); this.driver = driverFactory.GetDriver(DriverType.Chrome); }

You can inherit the class:

public class TestWithMultipleBrowsers : DriverFactory

Thanks for the reply. But is this solution allows you to run a single test immediately turn on multiple browsers? Indeed, this is precisely what allows you to do [TestFixture (typeof (ChromeDriver))] [TestFixture (typeof (InternetExplorerDriver))] [TestFixture (typeof (FirefoxDriver))] But I do not understand how to initialize push in the base class.

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