Specflow getting modal window takes a lot of time

Question

I am currently writing autotests for a WPF application and faced a problem that getting the window that does not exist takes a lot of time (at least 1 minute on each autotest which is unacceptable).

I have a file saving dialog window that is sometimes opened. In order to not disturb other scenarios, I have to close such window at teardown.

The problem is that this if such window does not exist (for ex. it was closed) trying to get it takes at least a minute on each scenario. Is it possible to make it perform better?

public Window SavePrintOutputWindow
    {
        get
        {
            try
            {
                var printingScreen = MainScreen.ScreenWindow.ModalWindow("Printing");
                var saveOutputWindow = printingScreen.ModalWindow("Save Print Output As");
                return saveOutputWindow;
            }
            catch (Exception e)
            {

                return null;
            }
        }
    }

So what's taking all the time in the code you posted? Finding the window? Catching the exception? — stuartd, Jun 05 '18 at 13:56
it is better to check `if (object != null)` instead of try catch for doing so — Bizhan, Jun 05 '18 at 13:58
@stuartd The line where it tries to find the window "Printing". — O. Smolynets, Jun 05 '18 at 13:59

score 0 · Accepted Answer · answered Jun 07 '18 at 09:22

Getting window using Get<WindowedAppScreen>("Printing", InitializeOption.NoCache) was also slow. Solved it using info from here.

There was no need for measuring exact performance but it works fast enough for me.

Now my code looks like this:

[DllImport("user32.dll", SetLastError = true)]
static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
public Window SavePrintOutputWindow
{
    get
    {
        try
        {
            IntPtr hWnd = FindWindow(null, "Save Print Output As");
            if (hWnd == IntPtr.Zero)
            {
                 return null;
            }
            var printingScreen = MainScreen.ScreenWindow.ModalWindow("Printing");
            var saveOutputWindow = printingScreen.ModalWindow("Save Print Output As");
            return saveOutputWindow;
        }
        catch
        {
            return null;
        }
    }
}

Hope it helps somebody.

Specflow getting modal window takes a lot of time

1 Answers1