Does this work?

Author: IEvangelist

tests/ProfanityFilter.Services.Tests/ServiceCollectionExtensionsTests.cs

@@ -1,6 +1,9 @@
 // Copyright (c) David Pine. All rights reserved.
 // Licensed under the MIT License.
 
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+
 namespace ProfanityFilter.Services.Tests;
 
 [TestClass]
@@ -13,6 +16,7 @@ public void AddProfanityFilterServices_AddsServices()
         var services = new ServiceCollection();
 
         // Act
+        services.AddSingleton(typeof(ILogger<>), typeof(NullLogger<>));
         services.AddProfanityFilterServices();
 
         // Assert