added tests for delete database

tests/PinguApps.Appwrite.Server.Tests/Clients/Databases/DatabasesClientTests.DeleteDatabase.cs

@@ -0,0 +1,72 @@
+using System.Net;
+using PinguApps.Appwrite.Shared.Requests.Databases;
+using PinguApps.Appwrite.Shared.Tests;
+using PinguApps.Appwrite.Shared.Utils;
+using RichardSzalay.MockHttp;
+
+namespace PinguApps.Appwrite.Server.Tests.Clients.Databases;
+public partial class DatabasesClientTests
+{
+    [Fact]
+    public async Task DeleteDatabase_ShouldReturnSuccess_WhenApiCallSucceeds()
+    {
+        // Arrange
+        var request = new DeleteDatabaseRequest
+        {
+            DatabaseId = IdUtils.GenerateUniqueId()
+        };
+
+        _mockHttp.Expect(HttpMethod.Delete, $"{TestConstants.Endpoint}/databases/{request.DatabaseId}")
+            .ExpectedHeaders()
+            .Respond(HttpStatusCode.NoContent);
+
+        // Act
+        var result = await _appwriteClient.Databases.DeleteDatabase(request);
+
+        // Assert
+        Assert.True(result.Success);
+    }
+
+    [Fact]
+    public async Task DeleteDatabase_ShouldHandleException_WhenApiCallFails()
+    {
+        // Arrange
+        var request = new DeleteDatabaseRequest
+        {
+            DatabaseId = IdUtils.GenerateUniqueId()
+        };
+
+        _mockHttp.Expect(HttpMethod.Delete, $"{TestConstants.Endpoint}/databases/{request.DatabaseId}")
+            .ExpectedHeaders()
+            .Respond(HttpStatusCode.BadRequest, TestConstants.AppJson, TestConstants.AppwriteError);
+
+        // Act
+        var result = await _appwriteClient.Databases.DeleteDatabase(request);
+
+        // Assert
+        Assert.True(result.IsError);
+        Assert.True(result.IsAppwriteError);
+    }
+
+    [Fact]
+    public async Task DeleteDatabase_ShouldReturnErrorResponse_WhenExceptionOccurs()
+    {
+        // Arrange
+        var request = new DeleteDatabaseRequest
+        {
+            DatabaseId = IdUtils.GenerateUniqueId()
+        };
+
+        _mockHttp.Expect(HttpMethod.Delete, $"{TestConstants.Endpoint}/databases/{request.DatabaseId}")
+            .ExpectedHeaders()
+            .Throw(new HttpRequestException("An error occurred"));
+
+        // Act
+        var result = await _appwriteClient.Databases.DeleteDatabase(request);
+
+        // Assert
+        Assert.False(result.Success);
+        Assert.True(result.IsInternalError);
+        Assert.Equal("An error occurred", result.Result.AsT2.Message);
+    }
+}