var hType echoClient.HeaderType
	if expectAllowed {
		hType = echoClient.RequestHeader
	} else {
		hType = echoClient.ResponseHeader
	}
	headerChecker := check.And(
		headerContains(hType, map[string][]string{
			XExtAuthzCheckReceived:            {"additional-header-new-value", "additional-header-override-value"},
			XExtAuthzAdditionalHeaderOverride: {"additional-header-override-value"},
		}),