tests: pre make dir in case nothing happens

command/utils_test.go

@@ -15,6 +15,9 @@ func mustString(s string, e error) string {
 }
 
 func createFiles(dir string, content map[string]string) {
+	if err := os.MkdirAll(dir, 0777); err != nil {
+		panic(err)
+	}
 	for relPath, content := range content {
 		contentPath := filepath.Join(dir, relPath)
 		if err := os.MkdirAll(filepath.Dir(contentPath), 0777); err != nil {