docs: Added the docs for GettingStartedWithTests

doc/articles/getting-started/GettingStartedWithTests.md

@@ -0,0 +1,59 @@
+---
+uid: Uno.Authoring.Tests
+---
+# How-To: Creating an application with tests using Uno.Extensions
+
+This tutorial will walk through how to create an Uno application with tests.
+
+> [!NOTE]
+> Make sure to setup your environment first by [following our instructions](xref:Uno.GetStarted.vs2022).
+
+## 1. Exploring the Solution
+
+The generated solution will contain:
+
+* *MyProjectName* - for application logic, and other constructs like view models and services, as well as the pages, controls, and other views that make up the UI of the application.
+* *MyProjectName.Tests* and *MyProjectName.UI.Tests* - for writing unit and UI tests respectively.
+
+![The structure of the generated solution](Assets/ProjectStructure-Tests-min.png)
+
+## 2. Running the Application
+
+* Select a target from the drop-down as pictured below
+
+    ![A screenshot of the generated targets](Assets/GeneratedTargets-min.png)
+
+* Click the "play" button, or press F5 to start debugging. The project will be compiled and deployed based on the target platform. For more detailed instructions specific to each platform, refer to the [Debug the App](xref:Uno.GettingStarted.CreateAnApp.VS2022#debug-the-app) documentation.
+
+## 3. Running the Unit Tests
+
+* Right click the project inside Tests\\MyProjectName.Tests to open the context menu
+
+* Select *Run Tests*
+
+   The application will be compiled and the test cases will run.
+
+> [!TIP]
+> If the 'Run Tests' menu item doesn't exist, you need to Rebuild the solution to get Visual Studio to detect the available tests.
+
+## 4. Running the UI tests
+
+* As demonstrated on step 3, select the **WebAssembly** target from the drop-down.
+
+* Press Ctrl + F5 to start the WASM project without debugging.
+
+* Once the application is compiled, it will launch inside your default browser. Take note of the URL which should look something like this: https://localhost:5000/Main
+
+* Find the project *Tests\\MyProjectName.UI.Tests* and locate the *Constants.cs* file.
+
+* Open *Constants.cs* and update the WebAssemblyDefaultUri constant.
+
+    It should appear similar to this:
+
+    ```cs
+    public readonly static string WebAssemblyDefaultUri = "https://localhost:5000/";
+    ```
+
+* Go back to the project *Tests\\MyProjectName.UI.Tests* and right click. Then, *Run Tests*.
+
+    ![Test Explorer in VS](Assets/TestExplorer-min.png)

doc/articles/toc.yml

@@ -155,6 +155,8 @@
       items:
       - name: Using the Uno.SDK
         href: xref:Uno.Features.Uno.Sdk
+      - name: Getting Started With Tests
+        href: xref:Uno.Authoring.Tests
       - name: Platform-specific C# code
         href: platform-specific-csharp.md
       - name: Platform-specific XAML markup