diff --git a/frontend/src/hooks/useMapData.ts b/frontend/src/hooks/useMapData.ts
index 0597cfb..a93bdad 100644
--- a/frontend/src/hooks/useMapData.ts
+++ b/frontend/src/hooks/useMapData.ts
@@ -100,20 +100,3 @@ export function useMapData(
   };
 }
 
-/**
- * Test helper: returns arguments most recently used to call `useMapData`.
- *
- * This helper is only intended for test use with a mock implementation.
- */
-export function getLastArgs(): { range: string; origin: string } {
-  throw new Error("getLastArgs is only available in tests with a mocked useMapData");
-}
-
-/**
- * Test helper: mutates mocked map data state.
- *
- * This helper is only intended for test use with a mock implementation.
- */
-export function setMapData(_: Partial<UseMapDataResult>): void {
-  throw new Error("setMapData is only available in tests with a mocked useMapData");
-}
diff --git a/frontend/src/pages/__tests__/MapPage.test.tsx b/frontend/src/pages/__tests__/MapPage.test.tsx
index 81a806f..00a7a23 100644
--- a/frontend/src/pages/__tests__/MapPage.test.tsx
+++ b/frontend/src/pages/__tests__/MapPage.test.tsx
@@ -2,35 +2,37 @@ import { describe, expect, it, vi } from "vitest";
 import { render, screen } from "@testing-library/react";
 import userEvent from "@testing-library/user-event";
 import { FluentProvider, webLightTheme } from "@fluentui/react-components";
-import { getLastArgs, setMapData } from "../../hooks/useMapData";
 import { MapPage } from "../MapPage";
+import type { UseMapDataResult } from "../../hooks/useMapData";
 
-vi.mock("../../hooks/useMapData", () => {
-  let lastArgs: { range: string; origin: string } = { range: "", origin: "" };
-  let dataState = {
-    countries: {},
-    countryNames: {},
-    bans: [],
-    total: 0,
-    loading: false,
-    error: null,
-    refresh: () => {},
-  };
+let lastArgs: { range: string; origin: string } = { range: "", origin: "" };
+let dataState: UseMapDataResult = {
+  countries: {},
+  countryNames: {},
+  bans: [],
+  total: 0,
+  loading: false,
+  error: null,
+  refresh: () => {},
+};
 
-  return {
-    useMapData: (range: string, origin: string) => {
-      lastArgs = { range, origin };
-      return { ...dataState };
-    },
-    setMapData: (newState: Partial<typeof dataState>) => {
-      dataState = { ...dataState, ...newState };
-    },
-    getLastArgs: () => lastArgs,
-  };
-});
+function getLastArgs(): { range: string; origin: string } {
+  return lastArgs;
+}
+
+function setMapData(newState: Partial<typeof dataState>): void {
+  dataState = { ...dataState, ...newState };
+}
+
+vi.mock("../../hooks/useMapData", () => ({
+  useMapData: (range: string, origin: string) => {
+    lastArgs = { range, origin };
+    return { ...dataState };
+  },
+}));
 
 vi.mock("../../api/config", () => ({
-  fetchMapColorThresholds: vi.fn(async () => ({
+  fetchMapColorThresholds: vi.fn(() => ({
     threshold_low: 10,
     threshold_medium: 50,
     threshold_high: 100,
@@ -65,7 +67,7 @@ describe("MapPage", () => {
     const user = userEvent.setup();
 
     const bans: import("../../types/map").MapBanItem[] = Array.from({ length: 120 }, (_, index) => ({
-      ip: `192.0.2.${index}`,
+      ip: "192.0.2." + String(index),
       jail: "ssh",
       banned_at: new Date(Date.now() - index * 1000).toISOString(),
       service: null,