Add GitHubWorkItem

Author: Evangelink

src/TestFramework/TestFramework/Attributes/TestMethod/GitHubWorkItemAttribute.cs

@@ -0,0 +1,34 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+namespace Microsoft.VisualStudio.TestTools.UnitTesting;
+
+/// <summary>
+/// GitHubWorkItem attribute; used to specify a GitHub issue associated with this test.
+/// </summary>
+[AttributeUsage(AttributeTargets.Method, AllowMultiple = true)]
+public sealed class GitHubWorkItemAttribute : WorkItemAttribute
+{
+    /// <summary>
+    /// Initializes a new instance of the <see cref="GitHubWorkItemAttribute"/> class for the GitHub WorkItem Attribute.
+    /// </summary>
+    /// <param name="url">The URL to a GitHub issue.</param>
+    public GitHubWorkItemAttribute(string url)
+        : base(ExtractId(url))
+        => Url = url;
+
+    /// <summary>
+    /// Gets the URL to the GitHub issue associated.
+    /// </summary>
+    public string Url { get; }
+
+    /// <summary>
+    /// Extracts the ID from the GitHub issue/pull/discussion URL.
+    /// </summary>
+    /// <param name="url">The URL to a GitHub ticket.</param>
+    /// <returns>The ticket ID.</returns>
+    private static int ExtractId(string url)
+        => int.TryParse(url.Substring(url.LastIndexOf('/') + 1), out int id)
+            ? id
+            : throw new ArgumentException("The URL provided is not a valid GitHub ticket URL.", nameof(url));
+}

src/TestFramework/TestFramework/Attributes/TestMethod/WorkItemAttribute.cs

@@ -7,7 +7,7 @@ namespace Microsoft.VisualStudio.TestTools.UnitTesting;
 /// WorkItem attribute; used to specify a work item associated with this test.
 /// </summary>
 [AttributeUsage(AttributeTargets.Method, AllowMultiple = true)]
-public sealed class WorkItemAttribute : Attribute
+public class WorkItemAttribute : Attribute
 {
     /// <summary>
     /// Initializes a new instance of the <see cref="WorkItemAttribute"/> class for the WorkItem Attribute.