Add context tests across all SDK clients

- Node.js: Unskip context field test (runtime PR now merged)
- Python: Add context assertions to existing list_sessions test
- Go: Add context assertions to existing ListSessions test
- .NET: Add new test for listing sessions with context

Author: jmoseley

dotnet/test/SessionTests.cs

@@ -369,6 +369,30 @@ public async Task SendAndWait_Blocks_Until_Session_Idle_And_Returns_Final_Assist
         Assert.Contains("assistant.message", events);
     }
 
+    [Fact]
+    public async Task Should_List_Sessions_With_Context()
+    {
+        var session = await Client.CreateSessionAsync();
+        await session.SendAndWaitAsync(new MessageOptions { Prompt = "Say hello" });
+
+        await Task.Delay(200);
+
+        var sessions = await Client.ListSessionsAsync();
+        Assert.NotEmpty(sessions);
+
+        var ourSession = sessions.Find(s => s.SessionId == session.SessionId);
+        Assert.NotNull(ourSession);
+
+        // Verify context field
+        foreach (var s in sessions)
+        {
+            if (s.Context != null)
+            {
+                Assert.False(string.IsNullOrEmpty(s.Context.Cwd), "Expected context.Cwd to be non-empty when context is present");
+            }
+        }
+    }
+
     [Fact]
     public async Task SendAndWait_Throws_On_Timeout()
     {

go/internal/e2e/session_test.go

@@ -812,6 +812,15 @@ func TestSession(t *testing.T) {
 			}
 			// isRemote is a boolean, so it's always set
 		}
+
+		// Verify context field is present on sessions
+		for _, s := range sessions {
+			if s.Context != nil {
+				if s.Context.Cwd == "" {
+					t.Error("Expected context.Cwd to be non-empty when context is present")
+				}
+			}
+		}
 	})
 
 	t.Run("should delete session", func(t *testing.T) {

nodejs/test/e2e/session.test.ts

@@ -22,8 +22,7 @@ describe("Sessions", async () => {
         await expect(() => session.getMessages()).rejects.toThrow(/Session not found/);
     });
 
-    // TODO: Enable once github/copilot-agent-runtime#3006 is merged
-    it.skip("should list sessions with context field", async () => {
+    it("should list sessions with context field", async () => {
         // Create a new session
         const session = await client.createSession();
         expect(session.sessionId).toMatch(/^[a-f0-9-]+$/);

python/e2e/test_session.py

@@ -220,6 +220,13 @@ async def test_should_list_sessions(self, ctx: E2ETestContext):
             assert isinstance(session_data.modifiedTime, str)
             assert isinstance(session_data.isRemote, bool)
 
+        # Verify context field is present
+        for session_data in sessions:
+            assert hasattr(session_data, "context")
+            if session_data.context is not None:
+                assert hasattr(session_data.context, "cwd")
+                assert isinstance(session_data.context.cwd, str)
+
     async def test_should_delete_session(self, ctx: E2ETestContext):
         import asyncio