Update old and add new tests

glob_test.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"modify/utils"
 	"os"
 	"path/filepath"
 	"testing"
@@ -76,9 +77,14 @@ func TestGlobExpansion(t *testing.T) {
 
 	for _, tc := range tests {
 		t.Run(tc.name, func(t *testing.T) {
-			files, err := expandFilePatterns(tc.patterns)
+			// Convert string patterns to map[string]struct{} for ExpandGLobs
+			patternMap := make(map[string]struct{})
+			for _, pattern := range tc.patterns {
+				patternMap[pattern] = struct{}{}
+			}
+			files, err := utils.ExpandGLobs(patternMap)
 			if err != nil {
-				t.Fatalf("expandFilePatterns failed: %v", err)
+				t.Fatalf("ExpandGLobs failed: %v", err)
 			}
 
 			if len(files) != tc.expected {