code snippets for "Sharing An IE Instance Among Multiple Tests With WatiN And MS Test" post

s1.cs

public static class IEStaticInstanceHelper
{
    // TODO: move this to a config file
    public const string ROOT_URL = "http://localhost:13834/";
 
    private static IE _ie;
    private static int _previouslyKnownIeThreadHashCode;
    private static string _ieHwnd;
 
    public static void Initialize()
    {
        IE = new IE(ROOT_URL);
    }
 
    public static IE IE
    {
        get
        {
            if (GetCurrentThreadHashCode() != _previouslyKnownIeThreadHashCode)
            {
                _ie = Browser.AttachTo<IE>(Find.By("hwnd", _ieHwnd));
                _previouslyKnownIeThreadHashCode = GetCurrentThreadHashCode();
            }
            return _ie;
        }
        private set
        {
            _ie = value;
            _ieHwnd = _ie.hWnd.ToString();
            _previouslyKnownIeThreadHashCode = GetCurrentThreadHashCode();
        }
    }
 
    private static int GetCurrentThreadHashCode()
    {
        return Thread.CurrentThread.GetHashCode();
    }
}

s2.cs

[AssemblyInitialize]
public static void AssemblyInitialize(TestContext testContext)
{
    IEStaticInstanceHelper.Initialize();
}
 
[AssemblyCleanup]
public static void AssemblyCleanup()
{
    if (IEStaticInstanceHelper.IE != null)
    {
        IEStaticInstanceHelper.IE.Close();
        IEStaticInstanceHelper.IE.Dispose();
    }
}

s3.cs

_ie = Browser.AttachTo<IE>(Find.By("hwnd", _ieHwnd));

s4.cs

[AssemblyCleanup]
public static void AssemblyCleanup()
{
    var thread = new Thread(() =>
    {
        if (IEStaticInstanceHelper.IE != null)
        {
            IEStaticInstanceHelper.IE.Close();
            IEStaticInstanceHelper.IE.Dispose();
        }
    });
 
    thread.SetApartmentState(ApartmentState.STA);
    thread.Start();
    thread.Join();
}