chore: import upstream snapshot with attribution

dotnet/tests/Microsoft.Agents.AI.Declarative.UnitTests/ChatClient/ChatClientAgentFactoryTests.cs

@@ -0,0 +1,107 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+using System.Threading.Tasks;
+using Microsoft.Extensions.AI;
+using Moq;
+
+namespace Microsoft.Agents.AI.Declarative.UnitTests.ChatClient;
+
+/// <summary>
+/// Unit tests for <see cref="ChatClientPromptAgentFactory"/>.
+/// </summary>
+public sealed class ChatClientAgentFactoryTests
+{
+    private readonly Mock<IChatClient> _mockChatClient;
+
+    public ChatClientAgentFactoryTests()
+    {
+        this._mockChatClient = new();
+    }
+
+    [Fact]
+    public async Task TryCreateAsync_WithChatClientInConstructor_CreatesAgentAsync()
+    {
+        // Arrange
+        var promptAgent = PromptAgents.CreateTestPromptAgent();
+        ChatClientPromptAgentFactory factory = new(this._mockChatClient.Object);
+
+        // Act
+        AIAgent? agent = await factory.TryCreateAsync(promptAgent);
+
+        // Assert
+        Assert.NotNull(agent);
+        Assert.IsType<ChatClientAgent>(agent);
+        Assert.Equal("Test Agent", agent.Name);
+        Assert.Equal("Test Description", agent.Description);
+    }
+
+    [Fact]
+    public async Task TryCreateAsync_Creates_ChatClientAgentAsync()
+    {
+        // Arrange
+        var promptAgent = PromptAgents.CreateTestPromptAgent();
+        ChatClientPromptAgentFactory factory = new(this._mockChatClient.Object);
+
+        // Act
+        AIAgent? agent = await factory.TryCreateAsync(promptAgent);
+
+        // Assert
+        Assert.NotNull(agent);
+        Assert.IsType<ChatClientAgent>(agent);
+        var chatClientAgent = agent as ChatClientAgent;
+        Assert.NotNull(chatClientAgent);
+        Assert.Equal("You are a helpful assistant.", chatClientAgent.Instructions);
+        Assert.NotNull(chatClientAgent.ChatClient);
+        Assert.NotNull(chatClientAgent.ChatOptions);
+    }
+
+    [Fact]
+    public async Task TryCreateAsync_Creates_ChatOptionsAsync()
+    {
+        // Arrange
+        var promptAgent = PromptAgents.CreateTestPromptAgent();
+        ChatClientPromptAgentFactory factory = new(this._mockChatClient.Object);
+
+        // Act
+        AIAgent? agent = await factory.TryCreateAsync(promptAgent);
+
+        // Assert
+        Assert.NotNull(agent);
+        Assert.IsType<ChatClientAgent>(agent);
+        var chatClientAgent = agent as ChatClientAgent;
+        Assert.NotNull(chatClientAgent?.ChatOptions);
+        Assert.Equal("You are a helpful assistant.", chatClientAgent?.ChatOptions?.Instructions);
+        Assert.Equal(0.7F, chatClientAgent?.ChatOptions?.Temperature);
+        Assert.Equal(0.7F, chatClientAgent?.ChatOptions?.FrequencyPenalty);
+        Assert.Equal(1024, chatClientAgent?.ChatOptions?.MaxOutputTokens);
+        Assert.Equal(0.9F, chatClientAgent?.ChatOptions?.TopP);
+        Assert.Equal(50, chatClientAgent?.ChatOptions?.TopK);
+        Assert.Equal(0.7F, chatClientAgent?.ChatOptions?.PresencePenalty);
+        Assert.Equal(42L, chatClientAgent?.ChatOptions?.Seed);
+        Assert.NotNull(chatClientAgent?.ChatOptions?.ResponseFormat);
+        Assert.Equal("gpt-4o", chatClientAgent?.ChatOptions?.ModelId);
+        Assert.Equal(["###", "END", "STOP"], chatClientAgent?.ChatOptions?.StopSequences);
+        Assert.True(chatClientAgent?.ChatOptions?.AllowMultipleToolCalls);
+        Assert.Equal(ChatToolMode.Auto, chatClientAgent?.ChatOptions?.ToolMode);
+        Assert.Equal("customValue", chatClientAgent?.ChatOptions?.AdditionalProperties?["customProperty"]);
+    }
+
+    [Fact]
+    public async Task TryCreateAsync_Creates_ToolsAsync()
+    {
+        // Arrange
+        var promptAgent = PromptAgents.CreateTestPromptAgent();
+        ChatClientPromptAgentFactory factory = new(this._mockChatClient.Object);
+
+        // Act
+        AIAgent? agent = await factory.TryCreateAsync(promptAgent);
+
+        // Assert
+        Assert.NotNull(agent);
+        Assert.IsType<ChatClientAgent>(agent);
+        var chatClientAgent = agent as ChatClientAgent;
+        Assert.NotNull(chatClientAgent?.ChatOptions?.Tools);
+        var tools = chatClientAgent?.ChatOptions?.Tools;
+        Assert.Equal(5, tools?.Count);
+    }
+}