fix(conformance-test): HTTPRouteQueryParamMatching (#2598)

Author: AlinsRan

Makefile

@@ -59,7 +59,7 @@ GO_LDFLAGS ?= "-X=$(VERSYM)=$(VERSION) -X=$(GITSHASYM)=$(GITSHA) -X=$(BUILDOSSYM
 # gateway-api
 GATEAY_API_VERSION ?= v1.3.0
 ## https://github.com/kubernetes-sigs/gateway-api/blob/v1.3.0/pkg/features/httproute.go
-SUPPORTED_EXTENDED_FEATURES = "HTTPRouteDestinationPortMatching,HTTPRouteMethodMatching,HTTPRoutePortRedirect,HTTPRouteRequestMirror,HTTPRouteSchemeRedirect,GatewayAddressEmpty,HTTPRouteResponseHeaderModification,GatewayPort8080,HTTPRouteHostRewrite"
+SUPPORTED_EXTENDED_FEATURES = "HTTPRouteDestinationPortMatching,HTTPRouteMethodMatching,HTTPRoutePortRedirect,HTTPRouteRequestMirror,HTTPRouteSchemeRedirect,GatewayAddressEmpty,HTTPRouteResponseHeaderModification,GatewayPort8080,HTTPRouteHostRewrite,HTTPRouteQueryParamMatching"
 CONFORMANCE_TEST_REPORT_OUTPUT ?= $(DIR)/apisix-ingress-controller-conformance-report.yaml
 ## https://github.com/kubernetes-sigs/gateway-api/blob/v1.3.0/conformance/utils/suite/profiles.go
 CONFORMANCE_PROFILES ?= GATEWAY-HTTP,GATEWAY-GRPC

internal/adc/translator/httproute.go

@@ -736,7 +736,7 @@ func (t *Translator) translateGatewayHTTPRouteMatch(match *gatewayv1.HTTPRouteMa
 		for _, query := range match.QueryParams {
 			var this []adctypes.StringOrSlice
 			this = append(this, adctypes.StringOrSlice{
-				StrVal: "arg_" + strings.ToLower(fmt.Sprintf("%v", query.Name)),
+				StrVal: "arg_" + fmt.Sprintf("%v", query.Name),
 			})
 
 			queryType := gatewayv1.QueryParamMatchExact
@@ -775,7 +775,6 @@ func (t *Translator) translateGatewayHTTPRouteMatch(match *gatewayv1.HTTPRouteMa
 }
 
 func HeaderMatchToVars(matchType, name, value string) ([]adctypes.StringOrSlice, error) {
-	name = strings.ToLower(name)
 	name = strings.ReplaceAll(name, "-", "_")
 
 	var this []adctypes.StringOrSlice