refactor: remove unused method in rest collector

cmd/collectors/rest/rest.go

@@ -295,35 +295,6 @@ func TemplateFn(n *node.Node, obj string) string {
 	return fn
 }
 
-// Returns a slice of keys in dot notation from json
-func getFieldName(source string, parent string) []string {
-	res := make([]string, 0)
-	var arr map[string]gjson.Result
-	r := gjson.Parse(source)
-	switch {
-	case r.IsArray():
-		newR := r.Get("0")
-		arr = newR.Map()
-	case r.IsObject():
-		arr = r.Map()
-	default:
-		return []string{parent}
-	}
-	if len(arr) == 0 {
-		return []string{parent}
-	}
-	for key, val := range arr {
-		var temp []string
-		if parent == "" {
-			temp = getFieldName(val.Raw, key)
-		} else {
-			temp = getFieldName(val.Raw, parent+"."+key)
-		}
-		res = append(res, temp...)
-	}
-	return res
-}
-
 // PollCounter performs daily tasks such as updating the cluster info and caching href.
 func (r *Rest) PollCounter() (map[string]*matrix.Matrix, error) {
 

cmd/collectors/rest/rest_test.go

@@ -20,49 +20,6 @@ const (
 	pollerName = "test"
 )
 
-func Test_getFieldName(t *testing.T) {
-
-	type test struct {
-		name   string
-		source string
-		parent string
-		want   int
-	}
-
-	var tests = []test{
-		{
-			name:   "Test1",
-			source: readFile("testdata/cluster.json"),
-			parent: "",
-			want:   52,
-		},
-		{
-			name:   "Test2",
-			source: readFile("testdata/sample.json"),
-			parent: "",
-			want:   3,
-		},
-		{
-			name:   "Test3",
-			source: readFile("testdata/test.json"),
-			parent: "",
-			want:   9,
-		},
-	}
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			if got := getFieldName(tt.source, tt.parent); len(got) != tt.want {
-				t.Errorf("length of output slice = %v, want %v", len(got), tt.want)
-			}
-		})
-	}
-}
-
-func readFile(path string) string {
-	b, _ := os.ReadFile(path)
-	return string(b)
-}
-
 var (
 	ms           []*matrix.Matrix
 	benchRest    *Rest