Bunit tests fail after upgrading to 3.2.0

[curtic00]

FYI:

I recently upgraded my Blazor server project (.net 6) to version 3.2.0) only to find that my Bunit tests were failing with the following error message.

System.InvalidOperationException : Cannot provide a value for property 'Configuration' on type 'BlazorBootstrap.Spinner'. There is no registered service of type 'Microsoft.Extensions.Configuration.IConfiguration'. 

I had to add the following service:
Services.AddSingleton<Microsoft.Extensions.Configuration.IConfiguration>(new Microsoft.Extensions.Configuration.ConfigurationManager());

Back on track now...