diff --git a/extensions/diffs/src/http.test.ts b/extensions/diffs/src/http.test.ts
index 43216580379..a1caef018e4 100644
--- a/extensions/diffs/src/http.test.ts
+++ b/extensions/diffs/src/http.test.ts
@@ -9,6 +9,19 @@ describe("createDiffsHttpHandler", () => {
   let store: DiffArtifactStore;
   let cleanupRootDir: () => Promise<void>;
 
+  async function handleLocalGet(url: string) {
+    const handler = createDiffsHttpHandler({ store });
+    const res = createMockServerResponse();
+    const handled = await handler(
+      localReq({
+        method: "GET",
+        url,
+      }),
+      res,
+    );
+    return { handled, res };
+  }
+
   beforeEach(async () => {
     ({ store, cleanup: cleanupRootDir } = await createDiffStoreHarness("openclaw-diffs-http-"));
   });
@@ -19,16 +32,7 @@ describe("createDiffsHttpHandler", () => {
 
   it("serves a stored diff document", async () => {
     const artifact = await createViewerArtifact(store);
-
-    const handler = createDiffsHttpHandler({ store });
-    const res = createMockServerResponse();
-    const handled = await handler(
-      localReq({
-        method: "GET",
-        url: artifact.viewerPath,
-      }),
-      res,
-    );
+    const { handled, res } = await handleLocalGet(artifact.viewerPath);
 
     expect(handled).toBe(true);
     expect(res.statusCode).toBe(200);
@@ -38,15 +42,8 @@ describe("createDiffsHttpHandler", () => {
 
   it("rejects invalid tokens", async () => {
     const artifact = await createViewerArtifact(store);
-
-    const handler = createDiffsHttpHandler({ store });
-    const res = createMockServerResponse();
-    const handled = await handler(
-      localReq({
-        method: "GET",
-        url: artifact.viewerPath.replace(artifact.token, "bad-token"),
-      }),
-      res,
+    const { handled, res } = await handleLocalGet(
+      artifact.viewerPath.replace(artifact.token, "bad-token"),
     );
 
     expect(handled).toBe(true);