RunTestsInCloud.cs

private string _username = "autoCloudTester";
private string _authkey = "70dccdcf-a9fd-4f55-aa07-12b051f6c83e";
private IWebDriver _driver;

[SetUp]
public void SetupTest()
{
    var caps = new DesiredCapabilities();
    caps.SetCapability("browserstack.debug", "true");
    caps.SetCapability("build", "1.0");

    caps.SetCapability("browserName", "Chrome");
    caps.SetCapability("platform", "Windows 8.1");
    caps.SetCapability("version", "49.0");
    caps.SetCapability("screenResolution", "1280x800");

    caps.SetCapability("username", _username);
    caps.SetCapability("accessKey", _authkey);
    caps.SetCapability("name", TestContext.CurrentContext.Test.Name);

    _driver = new RemoteWebDriver(new Uri("http://ondemand.saucelabs.com:80/wd/hub"), caps, TimeSpan.FromSeconds(180));
    _driver.Manage().Timeouts().PageLoad = TimeSpan.FromSeconds(30);
}

[TearDown]
public void TeardownTest()
{
    var passed = TestContext.CurrentContext.Result.Outcome == ResultState.Success;
    try
    {
        // Logs the result to Sauce Labs
        ((IJavaScriptExecutor)_driver).ExecuteScript("sauce:job-result=" + (passed ? "passed" : "failed"));
    }
    finally
    {
        _driver.Quit();
    }
}