Refactor code structure and remove redundant sections for improved readability and maintainability

utils_test.go

@@ -22,6 +22,17 @@ func TestTimestamp(t *testing.T) {
 	}
 }
 
+func TestTimestamp_Format(t *testing.T) {
+	ts := timestamp()
+	matched, err := regexp.MatchString(`^\d+$`, ts)
+	if err != nil {
+		t.Fatalf("regexp error: %v", err)
+	}
+	if !matched {
+		t.Errorf("timestamp() = %q, want only digits", ts)
+	}
+}
+
 func TestUrlToGen(t *testing.T) {
 	tests := []struct {
 		url, gen, want string
@@ -108,14 +119,3 @@ func TestUrlToGen_NoApiGen(t *testing.T) {
 		t.Errorf("urlToGen(%q, %q) = %q, want %q", url, gen, got, url)
 	}
 }
-
-func TestTimestamp_Format(t *testing.T) {
-	ts := timestamp()
-	matched, err := regexp.MatchString(`^\d+$`, ts)
-	if err != nil {
-		t.Fatalf("regexp error: %v", err)
-	}
-	if !matched {
-		t.Errorf("timestamp() = %q, want only digits", ts)
-	}
-}