diff --git a/src/gateway/gateway.e2e.test.ts b/src/gateway/gateway.e2e.test.ts
index ec6e8340f..c106027a1 100644
--- a/src/gateway/gateway.e2e.test.ts
+++ b/src/gateway/gateway.e2e.test.ts
@@ -3,6 +3,7 @@ import fs from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";
 import { describe, expect, it } from "vitest";
+import { captureEnv } from "../test-utils/env.js";
 import { startGatewayServer } from "./server.js";
 import { extractPayloadText } from "./test-helpers.agent-results.js";
 import {
@@ -19,16 +20,16 @@ describe("gateway e2e", () => {
     "runs a mock OpenAI tool call end-to-end via gateway agent loop",
     { timeout: 90_000 },
     async () => {
-      const prev = {
-        home: process.env.HOME,
-        configPath: process.env.OPENCLAW_CONFIG_PATH,
-        token: process.env.OPENCLAW_GATEWAY_TOKEN,
-        skipChannels: process.env.OPENCLAW_SKIP_CHANNELS,
-        skipGmail: process.env.OPENCLAW_SKIP_GMAIL_WATCHER,
-        skipCron: process.env.OPENCLAW_SKIP_CRON,
-        skipCanvas: process.env.OPENCLAW_SKIP_CANVAS_HOST,
-        skipBrowser: process.env.OPENCLAW_SKIP_BROWSER_CONTROL_SERVER,
-      };
+      const envSnapshot = captureEnv([
+        "HOME",
+        "OPENCLAW_CONFIG_PATH",
+        "OPENCLAW_GATEWAY_TOKEN",
+        "OPENCLAW_SKIP_CHANNELS",
+        "OPENCLAW_SKIP_GMAIL_WATCHER",
+        "OPENCLAW_SKIP_CRON",
+        "OPENCLAW_SKIP_CANVAS_HOST",
+        "OPENCLAW_SKIP_BROWSER_CONTROL_SERVER",
+      ]);
 
       const { baseUrl: openaiBaseUrl, restore } = installOpenAiResponsesMock();
 
@@ -107,30 +108,23 @@ describe("gateway e2e", () => {
         await server.close({ reason: "mock openai test complete" });
         await fs.rm(tempHome, { recursive: true, force: true });
         restore();
-        process.env.HOME = prev.home;
-        process.env.OPENCLAW_CONFIG_PATH = prev.configPath;
-        process.env.OPENCLAW_GATEWAY_TOKEN = prev.token;
-        process.env.OPENCLAW_SKIP_CHANNELS = prev.skipChannels;
-        process.env.OPENCLAW_SKIP_GMAIL_WATCHER = prev.skipGmail;
-        process.env.OPENCLAW_SKIP_CRON = prev.skipCron;
-        process.env.OPENCLAW_SKIP_CANVAS_HOST = prev.skipCanvas;
-        process.env.OPENCLAW_SKIP_BROWSER_CONTROL_SERVER = prev.skipBrowser;
+        envSnapshot.restore();
       }
     },
   );
 
   it("runs wizard over ws and writes auth token config", { timeout: 90_000 }, async () => {
-    const prev = {
-      home: process.env.HOME,
-      stateDir: process.env.OPENCLAW_STATE_DIR,
-      configPath: process.env.OPENCLAW_CONFIG_PATH,
-      token: process.env.OPENCLAW_GATEWAY_TOKEN,
-      skipChannels: process.env.OPENCLAW_SKIP_CHANNELS,
-      skipGmail: process.env.OPENCLAW_SKIP_GMAIL_WATCHER,
-      skipCron: process.env.OPENCLAW_SKIP_CRON,
-      skipCanvas: process.env.OPENCLAW_SKIP_CANVAS_HOST,
-      skipBrowser: process.env.OPENCLAW_SKIP_BROWSER_CONTROL_SERVER,
-    };
+    const envSnapshot = captureEnv([
+      "HOME",
+      "OPENCLAW_STATE_DIR",
+      "OPENCLAW_CONFIG_PATH",
+      "OPENCLAW_GATEWAY_TOKEN",
+      "OPENCLAW_SKIP_CHANNELS",
+      "OPENCLAW_SKIP_GMAIL_WATCHER",
+      "OPENCLAW_SKIP_CRON",
+      "OPENCLAW_SKIP_CANVAS_HOST",
+      "OPENCLAW_SKIP_BROWSER_CONTROL_SERVER",
+    ]);
 
     process.env.OPENCLAW_SKIP_CHANNELS = "1";
     process.env.OPENCLAW_SKIP_GMAIL_WATCHER = "1";
@@ -233,15 +227,7 @@ describe("gateway e2e", () => {
     } finally {
       await server2.close({ reason: "wizard auth verify" });
       await fs.rm(tempHome, { recursive: true, force: true });
-      process.env.HOME = prev.home;
-      process.env.OPENCLAW_STATE_DIR = prev.stateDir;
-      process.env.OPENCLAW_CONFIG_PATH = prev.configPath;
-      process.env.OPENCLAW_GATEWAY_TOKEN = prev.token;
-      process.env.OPENCLAW_SKIP_CHANNELS = prev.skipChannels;
-      process.env.OPENCLAW_SKIP_GMAIL_WATCHER = prev.skipGmail;
-      process.env.OPENCLAW_SKIP_CRON = prev.skipCron;
-      process.env.OPENCLAW_SKIP_CANVAS_HOST = prev.skipCanvas;
-      process.env.OPENCLAW_SKIP_BROWSER_CONTROL_SERVER = prev.skipBrowser;
+      envSnapshot.restore();
     }
   });
 });