test(BRIDGE-133): Bridge E2E UI tests for Windows

tests/e2e/ui_tests/windows_os/TestSession.cs

@@ -0,0 +1,43 @@
+using System;
+using System.Threading;
+using FlaUI.Core.AutomationElements;
+using FlaUI.Core;
+using FlaUI.UIA3;
+using ProtonMailBridge.UI.Tests.TestsHelper;
+using FlaUI.Core.Input;
+
+namespace ProtonMailBridge.UI.Tests
+{
+    public class TestSession
+    {
+
+        public static Application App;
+        protected static Application Service;
+        protected static Window Window;
+
+        protected static void ClientCleanup()
+        {
+            App.Kill();
+            App.Dispose();
+            // Give some time to properly exit the app
+            Thread.Sleep(2000);
+        }
+
+        public static void LaunchApp()
+        {
+            string appExecutable = TestData.AppExecutable;
+            Application.Launch(appExecutable);
+            Wait.UntilInputIsProcessed(TestData.FiveSecondsTimeout);
+            App = Application.Attach("bridge-gui.exe");
+
+            try
+            {
+                Window = App.GetMainWindow(new UIA3Automation(), TestData.ThirtySecondsTimeout);
+            }
+            catch (System.TimeoutException)
+            {
+                Assert.Fail("Failed to get window of application!");
+            }
+        }
+    }
+}