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bUnit test a component that has a TelerikDropZone

Hi,

I am trying to test a component that has a 'TelerikDropZone' inside, I don't need to do any interaction with the drop zone but when I try to render my component (using bUnit)

var myCmp = RenderComponent<MyComponent>();

It gives an error

System.NullReferenceException: Object reference not set to an instance of an object.

System.NullReferenceException
Object reference not set to an instance of an object.
   at Telerik.Blazor.Components.TelerikDropZone..ctor()
   at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean wrapExceptions)

As best I can tell looking at it, it seems to be coming up from the 'BaseComponent.Localizer'

[Parameter]
    public string HintText { get; set; } = BaseComponent.Localizer["DropZone_Hint"];

And if I just comment out the TelerikDropZone my tests run fine.

DropZone definition if it helps -

<TelerikDropZone Id="myDz">
                <Template>
                    <div class="hint">
                        <i class="far fa-file-plus me-2"></i>
                        <span>
                            Drag and drop file here
                        </span>
                    </div>
                </Template>
            </TelerikDropZone>