Add unit test suite and testability interfaces

BlazorServerChat2/Controllers/AiController.cs

@@ -15,7 +15,7 @@ namespace BlazorServerChat2.Controllers;
 [Route("api/[controller]")]
 [Authorize]
 public class AiController(
-    AgentFrameworkLogic agentLogic,
+    IAgentFrameworkLogic agentLogic,
     ApplicationDbContext context,
     IHubContext<BlazorChatHub> hubContext,
     ILogger<AiController> logger) : ControllerBase

BlazorServerChat2/Controllers/ChatController.cs

@@ -15,7 +15,7 @@ namespace BlazorServerChat2.Controllers;
 public class ChatController(
     ApplicationDbContext context,
     Room room,
-    UserChatSettingCache userChatSettingCache,
+    IUserChatSettingCache userChatSettingCache,
     ILogger<ChatController> logger) : ControllerBase
 {
     /// <summary>

BlazorServerChat2/Data/AgentFrameworkLogic.cs

@@ -25,7 +25,7 @@ namespace BlazorServerChat2.Data
     /// dotnet add package Azure.AI.OpenAI --prerelease
     /// dotnet add package Azure.Identity
     /// </remarks>
-    public class AgentFrameworkLogic
+    public class AgentFrameworkLogic : IAgentFrameworkLogic
     {
         private readonly ILoggerFactory _logger;
         private readonly IConfiguration _configuration;

BlazorServerChat2/Data/IAgentFrameworkLogic.cs

@@ -0,0 +1,22 @@
+namespace BlazorServerChat2.Data;
+
+/// <summary>
+/// AIエージェントロジックのインターフェース（テスト容易性のため）
+/// </summary>
+public interface IAgentFrameworkLogic
+{
+    /// <summary>シングルエージェント（ほのか）への問いかけ。HTML文字列を返す。</summary>
+    Task<string> Run(string input);
+
+    /// <summary>グループチャット（ほのか＆みずき）。各エージェントの応答をコールバックで通知する。</summary>
+    Task RunGroupChat(string input, Func<string, string, Task> onMessageReceived);
+
+    /// <summary>会話履歴をクリアして新しいスレッドを開始する。</summary>
+    Task ClearAsync();
+
+    /// <summary>ユーザーメッセージを履歴に追加する（AI応答なし）。</summary>
+    void NonGenerateMessage(string input);
+
+    /// <summary>アシスタントメッセージを履歴に追加する。</summary>
+    void AddAssistantMessage(string message);
+}

BlazorServerChat2/Data/IUserChatSettingCache.cs

@@ -0,0 +1,18 @@
+namespace BlazorServerChat2.Data;
+
+/// <summary>
+/// ユーザーチャット設定キャッシュのインターフェース（テスト容易性のため）
+/// </summary>
+public interface IUserChatSettingCache
+{
+    Task InitializeAsync();
+    UserChatSetting? GetUserChatSetting(string? userId);
+    string? GetUserIconBase64(string? userId);
+    string? GetIconBase64(int iconNumber);
+    Task<string?> GetUserNameAsync(string? userId);
+    string? GetUserName(string? userId);
+    Task LoadUserNamesAsync(IEnumerable<string> userIds);
+    void UpdateUserSetting(UserChatSetting setting);
+    void UpdateIcon(IconMaster icon);
+    Task RefreshAsync();
+}

BlazorServerChat2/Data/UserChatSettingCache.cs

@@ -7,7 +7,7 @@ namespace BlazorServerChat2.Data;
 /// ユーザーチャット設定とアイコンマスタのキャッシュサービス
 /// DBアクセスを削減し、会話ごとのSQL Server負荷を軽減します 🚀
 /// </summary>
-public class UserChatSettingCache : IDisposable
+public class UserChatSettingCache : IUserChatSettingCache, IDisposable
 {
     private readonly IServiceScopeFactory _scopeFactory;
     private readonly ILogger<UserChatSettingCache> _logger;

BlazorServerChat2/Mcp/ChatMcpTools.cs

@@ -11,10 +11,10 @@ namespace BlazorServerChat2.Mcp;
 [McpServerToolType]
 public class ChatMcpTools
 {
-    private readonly AgentFrameworkLogic _agentLogic;
+    private readonly IAgentFrameworkLogic _agentLogic;
     private readonly ILogger<ChatMcpTools> _logger;
 
-    public ChatMcpTools(AgentFrameworkLogic agentLogic, ILogger<ChatMcpTools> logger)
+    public ChatMcpTools(IAgentFrameworkLogic agentLogic, ILogger<ChatMcpTools> logger)
     {
         _agentLogic = agentLogic;
         _logger = logger;

BlazorServerChat2/Pages/Index.razor

@@ -21,10 +21,10 @@
 @inject ClientHub clientHub
 @inject Room room
 @inject HttpClient http
-@inject AgentFrameworkLogic agentFrameworkLogic
+@inject IAgentFrameworkLogic agentFrameworkLogic
 @inject ScreenModePlugin screenModePlugin
 @inject IKeyCodeService keyCodeService
-@inject UserChatSettingCache userChatSettingCache
+@inject IUserChatSettingCache userChatSettingCache
 @implements IAsyncDisposable
 
 <PageTitle>あびや</PageTitle>

BlazorServerChat2/Pages/IndexAuto.razor.server.bak

@@ -23,7 +23,7 @@
 @inject IDbContextFactory<ApplicationDbContext>? DbContextFactory
 @inject Room? RoomService
 @inject AuthenticationStateProvider? AuthStateProvider
-@inject AgentFrameworkLogic? AgentLogic
+@inject IAgentFrameworkLogic? AgentLogic
 @inject IHubContext<BlazorChatHub>? HubContext
 @implements IAsyncDisposable
 

BlazorServerChat2/Program.cs

@@ -199,7 +199,7 @@
 builder.Services.AddScoped<ClientHub>();
 builder.Services.AddSingleton<Room>();
 builder.Services.AddSingleton<HttpClient>();
-builder.Services.AddSingleton<UserChatSettingCache>();
+builder.Services.AddSingleton<IUserChatSettingCache, UserChatSettingCache>();
 
 // InteractiveAuto用のHttpClient認証サポート
 builder.Services.AddHttpContextAccessor();
@@ -222,7 +222,7 @@
     .UseOpenTelemetry(sourceName: openTelemetrySourceName, configure: (cfg) => cfg.EnableSensitiveData = true)
     .Build();
 builder.Services.AddSingleton<IChatClient>(client);
-builder.Services.AddScoped<AgentFrameworkLogic>();
+builder.Services.AddScoped<IAgentFrameworkLogic, AgentFrameworkLogic>();
 builder.Services.AddScoped<ScreenModePlugin>();
 builder.Services.AddScoped<WeatherPlugin>();