Add InMemoryConnection class implementing IReadOnlyConnection

Author: Arlodotexe

src/InMemoryConnection.cs

@@ -0,0 +1,29 @@
+namespace WindowsAppCommunity.Sdk;
+
+/// <summary>
+/// An in-memory implementation of <see cref="IReadOnlyConnection"/>.
+/// </summary>
+/// <remarks>
+/// This class is used to create a basic connection value to be added to a collection.
+/// </remarks>
+public class InMemoryConnection : IReadOnlyConnection
+{
+    /// <summary>
+    /// An Id for the connection.
+    /// </summary>
+    public required string Id { get; init; }
+
+    /// <summary>
+    /// The value of the connection.
+    /// </summary>
+    public required string Value { get; init; }
+
+    /// <inheritdoc/>
+    public Task<string> GetValueAsync(CancellationToken cancellationToken = default)
+    {
+        return Task.FromResult(Value);
+    }
+
+    /// <inheritdoc/>
+    public event EventHandler<string>? ValueUpdated;
+}