Enable PowerApps MDA Display controls Control for Custom Pages with Test Engine Support

samples/mdadisplaycontrols/README.md

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+
+# Overview
+
+This Power Apps Test Engine sample demonstrates how to assert and interact with the values of display controls in a model-driven application form.
+
+## Usage
+
+1. **Build the Test Engine Solution**  
+   Ensure the Power Apps Test Engine solution is built and ready to be executed.
+
+2. **Get the URL of the Model-Driven Application Form**  
+   Acquire the URL of the specific Model-Driven Application form that you want to test.
+
+3. **Modify the displaycontroltestplan.fx.yaml**  
+   Update the YAML file to assert expected values of the shape controls.
+
+  > [!NOTE] The controls are referenced using the [logical name](https://learn.microsoft.com/power-apps/developer/data-platform/entity-metadata#table-names).
+
+4. **Update the Domain URL for Your Model-Driven Application**
+
+   | URL Part | Description |
+   |----------|-------------|
+   | `appid=a1234567-cccc-44444-9999-a123456789123` | The unique identifier of your model-driven application. |
+   | `etn=shape` | The name of the entity being validated. |
+   | `id=26bafa27-ca7d-ee11-8179-0022482a91f4` | The unique identifier of the record being edited. |
+   | `pagetype=custom` | The type of page to open. |
+
+5. **Execute the Test for Custom Page**  
+   Change the example below to the URL of your organization:
+
+```pwsh
+cd bin\Debug\PowerAppsEngine
+dotnet PowerAppsTestEngine.dll -i ..\..\..\samples\mdadisplaycontrols\displaycontroltestplan.fx.yaml -e 00000000-0000-0000-0000-11112223333 -t 11112222-3333-4444-5555-666677778888 -u browser -p mda -d "https://contoso.crm4.dynamics.com/main.aspx?appid=9e9c25f3-1851-ef11-bfe2-6045bd8f802c&pagetype=custom&name=cr7d6_displaycontrols_7009b"
+```