/// <summary> /// Sets inner HTTP message handler to the current message handler. /// </summary> /// <param name="innerHandler">Instance of HttpMessageHandler.</param> protected void SetInnerHandler(HttpMessageHandler innerHandler) { var handlerAsDelegatingHandler = this.Handler as DelegatingHandler; if (handlerAsDelegatingHandler == null) { throw new HttpHandlerAssertionException(string.Format( "When adding inner handler {0} to {1}, expected {1} to be DelegatingHandler, but in fact was not.", innerHandler.GetName(), this.Handler.GetName())); } handlerAsDelegatingHandler.InnerHandler = innerHandler; }