From 40c29a97be1d1c4d8a9ef2869670a81d6c3fb84a Mon Sep 17 00:00:00 2001
From: guoyunfeng <jdjioe5@gmail.com>
Date: Sun, 25 Oct 2026 04:22:00 +0800
Subject: [PATCH] refactor(fee): remove unused formatFee and its tests (closes
 #1039)

---
 __tests__/lib/fee-utils.test.ts | 15 ---------------
 lib/fee-utils.ts                |  8 --------
 2 files changed, 23 deletions(-)

diff --git a/__tests__/lib/fee-utils.test.ts b/__tests__/lib/fee-utils.test.ts
index 20596ee..d6c3503 100644
--- a/__tests__/lib/fee-utils.test.ts
+++ b/__tests__/lib/fee-utils.test.ts
@@ -2,7 +2,6 @@ import { describe, it, expect } from "vitest";
 import {
   calculateFeeBreakdown,
   isHighFee,
-  formatFee,
   calculateBatchFees,
   TYPICAL_FEES,
 } from "@/lib/fee-utils";
@@ -51,20 +50,6 @@ describe("isHighFee", () => {
   });
 });
 
-describe("formatFee", () => {
-  it("converts stroops to XLM string", () => {
-    expect(formatFee(10_000_000)).toBe("1.0000000");
-  });
-
-  it("respects decimals parameter", () => {
-    expect(formatFee(10_000_000, 2)).toBe("1.00");
-  });
-
-  it("handles small fees", () => {
-    expect(formatFee(100)).toBe("0.0000100");
-  });
-});
-
 describe("calculateBatchFees", () => {
   it("multiplies fee per operation by count", () => {
     const result = calculateBatchFees(5, 50_000);
diff --git a/lib/fee-utils.ts b/lib/fee-utils.ts
index f778815..fd4e1af 100644
--- a/lib/fee-utils.ts
+++ b/lib/fee-utils.ts
@@ -52,14 +52,6 @@ export function isHighFee(fee: number, averageFee: number): boolean {
   return fee > averageFee * 2;
 }
 
-/**
- * Format fee amount for display
- */
-export function formatFee(stroops: number, decimals: number = 7): string {
-  const xlm = stroops / 1e7;
-  return xlm.toFixed(Math.min(decimals, 7));
-}
-
 /**
  * Calculate batch operation total fees
  */