MSTest-Cross browser testing C# with Selenium?-how to run C# Selenium tests against multiple browsers

Question

At the moment my tests are running only in Firefox, because that is the driver which initialize at last. I need to run my tests on both Firefox and Chrome. Parallel or serially. But it should be automatic.

Below is my example test-code:.

namespace TestOne
{
 [TestClass]
 public class UnitTest1
 {
 public static IWebDriver driver;
 [TestInitialize]
 public void BeforeEveryTest()
 {
 driver = new ChromeDriver();
 driver = new FirefoxDriver();
 }
 [TestMethod]
 public void NavigateToGoogle()
 {
 driver.Navigate().GoToUrl("http://google.com");
 }
 [TestCleanup]
 public void RunAfterEveryTest()
 {
 driver.Quit();
 }
 }
}

What are the options to run this test for both Chrome and Firefox? When using the C# testing tools (e.g. mstest.exe or vstest.console.exe)

• Niels van Reijmersdal: Changed the question a bit to make it a bit more clear, not sure why this is being voted as unclear. The question is simple, how to run C# Selenium tests against multiple browsers.
• Peter M. - stands for Monica: It is almost funny that question from member of "closing mafia" is almost closed by "closing mafia".
• Vinh: I got the error NullReferenceException when using TestContext.Properties["browser"].ToString() on BaseClass. Could you have any oter solution?

Answer 1

I think you can use a .RunSettings as described in the MSDN documentation.

<?xml version="1.0" encoding="utf-8" ?>
<RunSettings>
 <TestRunParameters>
 <Parameter name="browser" value="chrome" />
 </TestRunParameters>
</RunSettings>

If you make a file for Firefox and Chrome you can run the tests from the command-line with VStest.Console like this:

vstest.console myTestDll.dll /Settings:Chrome.RunSettings /Logger:trx
vstest.console myTestDll.dll /Settings:Firefox.RunSettings /Logger:trx

Your test would look like this:

 [TestInitialize]
 public void BeforeEveryTest()
 {
 if ( TestContext.Properties["browser"].ToString() == "chrome" ) {
 driver = new ChromeDriver();
 } else {
 driver = new FirefoxDriver();
 }
 }

• ChathuD: in here every time i have to change the browser name by editing the .RunSettings file.But i want it to be get automatically .One browser after another.
• Niels van Reijmersdal: You make two run setting files. Add the two commands to a batch or powershell script. Then execute that one script to run them after each other.