.NET: Add Anthropic-backed live tests for the OpenAI Responses hosting helpers

dotnet/tests/Microsoft.Agents.AI.Hosting.OpenAI.IntegrationTests/AnthropicResponsesHostingLiveTests.cs

@@ -0,0 +1,96 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+using System;
+using System.Linq;
+using System.Text.Json;
+using System.Threading.Tasks;
+using Anthropic;
+using Shared.IntegrationTests;
+
+namespace Microsoft.Agents.AI.Hosting.OpenAI.IntegrationTests;
+
+/// <summary>
+/// Live integration tests for the app-owned routing helper surface (<see cref="OpenAIResponses"/> plus
+/// <see cref="AgentSessionStore"/>) exercised against a real Anthropic model. The helper surface is
+/// provider-agnostic; these tests confirm the same consumption paths — request conversion, an agent run,
+/// response rendering, and multi-turn session continuity — behave correctly end to end when the hosted
+/// agent is backed by a non-OpenAI chat client.
+/// </summary>
+/// <remarks>
+/// Skipped unless the Anthropic configuration is present (<c>ANTHROPIC_API_KEY</c>), so runs without
+/// secrets stay green. The OpenAI-backed variant of these tests lives in
+/// <see cref="OpenAIResponsesHostingLiveTests"/>.
+/// </remarks>
+public sealed class AnthropicResponsesHostingLiveTests
+{
+    private static string? ApiKey => Environment.GetEnvironmentVariable(TestSettings.AnthropicApiKey);
+    private static string ModelName => Environment.GetEnvironmentVariable(TestSettings.AnthropicChatModelName) ?? "claude-haiku-4-5";
+
+    [Fact]
+    public async Task NonStreamingRun_RendersResponsesShapedPayloadAsync()
+    {
+        // Arrange
+        Assert.SkipWhen(string.IsNullOrEmpty(ApiKey), "ANTHROPIC_API_KEY is not configured; skipping live hosting test.");
+        AIAgent agent = CreateAgent();
+        AgentSessionStore sessionStore = new InMemoryAgentSessionStore();
+        JsonElement body = ParseBody("""{ "input": "Reply with exactly the word: apple" }""");
+
+        // Act
+        OpenAIResponsesRunRequest run = OpenAIResponses.ToAgentRunRequest(body);
+        string sessionStoreId = OpenAIResponses.GetSessionStoreId(run) ?? OpenAIResponses.CreateResponseId();
+        AgentSession session = await sessionStore.GetSessionAsync(agent, sessionStoreId);
+        string responseId = OpenAIResponses.CreateResponseId();
+        AgentResponse result = await agent.RunAsync(run.Messages, session, run.Options);
+        JsonElement payload = OpenAIResponses.WriteResponse(result, responseId, responseId);
+
+        // Assert
+        Assert.Equal(responseId, payload.GetProperty("id").GetString());
+        Assert.Equal("response", payload.GetProperty("object").GetString());
+        Assert.Contains("output", payload.EnumerateObject().Select(p => p.Name));
+    }
+
+    [Fact]
+    public async Task MultiTurn_ContinuesSessionAcrossTurnsAsync()
+    {
+        // Arrange
+        Assert.SkipWhen(string.IsNullOrEmpty(ApiKey), "ANTHROPIC_API_KEY is not configured; skipping live hosting test.");
+        AIAgent agent = CreateAgent();
+        AgentSessionStore sessionStore = new InMemoryAgentSessionStore();
+
+        // Act: first turn establishes context, second turn continues from the first response id.
+        string firstResponseId = await RunTurnAsync(agent, sessionStore, """{ "input": "Remember the number 7." }""");
+        JsonElement secondBody = ParseBody($$"""{ "input": "What number did I ask you to remember?", "previous_response_id": "{{firstResponseId}}" }""");
+        OpenAIResponsesRunRequest secondRun = OpenAIResponses.ToAgentRunRequest(secondBody);
+        string secondSessionStoreId = OpenAIResponses.GetSessionStoreId(secondRun)!;
+        AgentSession session = await sessionStore.GetSessionAsync(agent, secondSessionStoreId);
+        AgentResponse secondResult = await agent.RunAsync(secondRun.Messages, session, secondRun.Options);
+
+        // Assert: continuation succeeded and the model produced a textual answer.
+        Assert.Equal(secondSessionStoreId, firstResponseId);
+        Assert.False(string.IsNullOrWhiteSpace(secondResult.Text));
+    }
+
+    private static async Task<string> RunTurnAsync(AIAgent agent, AgentSessionStore sessionStore, string bodyJson)
+    {
+        JsonElement body = ParseBody(bodyJson);
+        OpenAIResponsesRunRequest run = OpenAIResponses.ToAgentRunRequest(body);
+        string sessionStoreId = OpenAIResponses.GetSessionStoreId(run) ?? OpenAIResponses.CreateResponseId();
+        AgentSession session = await sessionStore.GetSessionAsync(agent, sessionStoreId);
+        string responseId = OpenAIResponses.CreateResponseId();
+        _ = await agent.RunAsync(run.Messages, session, run.Options);
+        await sessionStore.SaveSessionAsync(agent, responseId, session);
+        return responseId;
+    }
+
+    private static ChatClientAgent CreateAgent() =>
+        new AnthropicClient { ApiKey = ApiKey }.AsAIAgent(
+            ModelName,
+            instructions: "You are a concise assistant.",
+            name: "assistant");
+
+    private static JsonElement ParseBody(string json)
+    {
+        using JsonDocument doc = JsonDocument.Parse(json);
+        return doc.RootElement.Clone();
+    }
+}

dotnet/tests/Microsoft.Agents.AI.Hosting.OpenAI.IntegrationTests/Microsoft.Agents.AI.Hosting.OpenAI.IntegrationTests.csproj

@@ -13,6 +13,7 @@
   <ItemGroup>
     <ProjectReference Include="..\..\src\Microsoft.Agents.AI.Hosting\Microsoft.Agents.AI.Hosting.csproj" />
     <ProjectReference Include="..\..\src\Microsoft.Agents.AI.Hosting.OpenAI\Microsoft.Agents.AI.Hosting.OpenAI.csproj" />
+    <ProjectReference Include="..\..\src\Microsoft.Agents.AI.Anthropic\Microsoft.Agents.AI.Anthropic.csproj" />
     <ProjectReference Include="..\..\src\Microsoft.Agents.AI\Microsoft.Agents.AI.csproj" />
   </ItemGroup>