add tests

ChatBot.Tests/Services/DatabaseInitializationServiceTests.cs

@@ -0,0 +1,47 @@
+using ChatBot.Data;
+using ChatBot.Services;
+using ChatBot.Tests.TestUtilities;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+using Moq;
+
+namespace ChatBot.Tests.Services;
+
+public class DatabaseInitializationServiceTests : UnitTestBase
+{
+    [Fact]
+    public void DatabaseInitializationService_ShouldCreateInstance()
+    {
+        // Arrange
+        var serviceProviderMock = new Mock<IServiceProvider>();
+        var loggerMock = new Mock<ILogger<DatabaseInitializationService>>();
+
+        // Act
+        var service = new DatabaseInitializationService(
+            serviceProviderMock.Object,
+            loggerMock.Object
+        );
+
+        // Assert
+        Assert.NotNull(service);
+    }
+
+    [Fact]
+    public async Task DatabaseInitializationService_StopAsync_ShouldComplete()
+    {
+        // Arrange
+        var serviceProviderMock = new Mock<IServiceProvider>();
+        var loggerMock = new Mock<ILogger<DatabaseInitializationService>>();
+        var service = new DatabaseInitializationService(
+            serviceProviderMock.Object,
+            loggerMock.Object
+        );
+
+        // Act & Assert
+        await service.StopAsync(CancellationToken.None);
+
+        // If we reach here, the method completed successfully
+        Assert.True(true);
+    }
+}