diff --git a/jest/mock.js b/jest/mock.js
index 7f2944a..8d9ae9b 100644
--- a/jest/mock.js
+++ b/jest/mock.js
@@ -2,11 +2,13 @@ const { NativeModules, DeviceEventEmitter } = require('react-native')
 
 if (!NativeModules.RNLlama) {
   NativeModules.RNLlama = {
-    initContext: jest.fn(() => Promise.resolve({
-      contextId: 1,
-      gpu: false,
-      reasonNoGPU: 'Test',
-    })),
+    initContext: jest.fn(() =>
+      Promise.resolve({
+        contextId: 1,
+        gpu: false,
+        reasonNoGPU: 'Test',
+      }),
+    ),
 
     completion: jest.fn(async (contextId, jobId) => {
       const testResult = {
@@ -150,6 +152,11 @@ if (!NativeModules.RNLlama) {
     })),
     saveSession: jest.fn(async () => 1),
 
+    bench: jest.fn(
+      async () =>
+        '["test 3B Q4_0",1600655360,2779683840,16.211304,0.021748,38.570646,1.195800]',
+    ),
+
     releaseContext: jest.fn(() => Promise.resolve()),
     releaseAllContexts: jest.fn(() => Promise.resolve()),
 
diff --git a/src/__tests__/__snapshots__/index.test.ts.snap b/src/__tests__/__snapshots__/index.test.ts.snap
index ccf9c51..73c9c49 100644
--- a/src/__tests__/__snapshots__/index.test.ts.snap
+++ b/src/__tests__/__snapshots__/index.test.ts.snap
@@ -90,7 +90,19 @@ Array [
 ]
 `;
 
-exports[`Mock 2`] = `
+exports[`Mock: bench 1`] = `
+Object {
+  "modelDesc": "test 3B Q4_0",
+  "modelNParams": 2779683840,
+  "modelSize": 1600655360,
+  "ppAvg": 16.211304,
+  "ppStd": 0.021748,
+  "tgAvg": 38.570646,
+  "tgStd": 1.1958,
+}
+`;
+
+exports[`Mock: completion result 1`] = `
 Object {
   "completion_probabilities": Array [
     Object {
diff --git a/src/__tests__/index.test.ts b/src/__tests__/index.test.ts
index 8bcca60..e980961 100644
--- a/src/__tests__/index.test.ts
+++ b/src/__tests__/index.test.ts
@@ -17,7 +17,9 @@ test('Mock', async () => {
     events.push(data)
   })
   expect(events).toMatchSnapshot()
-  expect(completionResult).toMatchSnapshot()
+  expect(completionResult).toMatchSnapshot('completion result')
+
+  expect(await context.bench(512, 128, 1, 3)).toMatchSnapshot('bench')
 
   await context.release()
   await releaseAllLlama()
diff --git a/src/index.ts b/src/index.ts
index cc7843a..1e8a187 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -128,6 +128,7 @@ export class LlamaContext {
 
   async bench(pp: number, tg: number, pl: number, nr: number): Promise<BenchResult> {
     const result = await RNLlama.bench(this.id, pp, tg, pl, nr)
+    console.log(result)
     const [
       modelDesc,
       modelSize,