}

	// test for unknown auth case.
	anonReq.Body = readerTwo
	// Setting the `Authorization` header to a random value so that the signature falls into unknown auth case.
	anonReq.Header.Set("Authorization", "nothingElse")
	// initialize new response recorder.
	rec = httptest.NewRecorder()
	// call the handler using the HTTP Request.
	apiRouter.ServeHTTP(rec, anonReq)
	// verify the response body for `ErrAccessDenied` message =.