public void ListenerConstructedWithSpanCallbackDoesNotThrowOnStartBlockEndBlockOrError() { // Arrange Action <Span> spanCallback = _ => { }; CallbackVisitor listener = new CallbackVisitor(spanCallback); // Act/Assert listener.VisitStartBlock(BlockType.Functions); listener.VisitError(new RazorError("Error", SourceLocation.Zero)); listener.VisitEndBlock(BlockType.Functions); }