private DependencyProvider(DependencyProvider parent)
 {
     _parent = parent;
     _lock   = parent._lock;
 }
 public ScopedDependencyShould(ITestOutputHelper output) : base(output)
 {
     _provider = new DependencyCollection()
                 .AddScoped(ctx => new BooRepository(null, null))
                 .BuildProvider();
 }