public void ClickOn1IsDisplayedInResultsBox()
{
// Given
Window mainWindow = Application.Current.MainWindow;
Button b1 = VisualUtilities.FindByAutomationId <Button>(mainWindow, "B1_automation_id");
// When
VisualUtilities.Click(b1);
VisualUtilities.Wait(TimeSpan.FromSeconds(1));
// Then
MyTextBox resultsBox = VisualUtilities.FindByName <MyTextBox>(mainWindow, "DisplayBox");
Assert.AreEqual(resultsBox.Text, "1");
}