optimize filterByStateAndGroup to handle array "group" values

client/xclient.go

@@ -235,8 +235,18 @@ func filterByStateAndGroup(group string, servers map[string]string) {
 			if state := values.Get("state"); state == "inactive" {
 				delete(servers, k)
 			}
-			if group != "" && group != values.Get("group") {
-				delete(servers, k)
+			groups := values["group"] // Directly access the map to get all values associated with "group" as a slice
+			if group != "" {
+				found := false
+				for _, g := range groups {
+					if group == g {
+						found = true
+						break // A matching group is found, stop the search
+					}
+				}
+				if !found {
+					delete(servers, k) // If no matching group is found, delete the corresponding server from the map
+				}
 			}
 		}
 	}

client/xclient_test.go

@@ -93,7 +93,7 @@ func TestXClient_IT(t *testing.T) {
 }
 
 func TestXClient_filterByStateAndGroup(t *testing.T) {
-	servers := map[string]string{"a": "", "b": "state=inactive&ops=10", "c": "ops=20", "d": "group=test&ops=20"}
+	servers := map[string]string{"a": "", "b": "state=inactive&ops=10", "c": "ops=20", "d": "group=test1&group=test&ops=20"}
 	filterByStateAndGroup("test", servers)
 	if _, ok := servers["b"]; ok {
 		t.Error("has not remove inactive node")
@@ -107,6 +107,12 @@ func TestXClient_filterByStateAndGroup(t *testing.T) {
 	if _, ok := servers["d"]; !ok {
 		t.Error("node must be removed")
 	}
+
+	filterByStateAndGroup("test1", servers)
+
+	if _, ok := servers["d"]; !ok {
+		t.Error("node must be removed")
+	}
 }
 
 func TestUncoverError(t *testing.T) {