diff --git a/scripts/__tests__/EventTest/KeyboardEvent.test.js b/scripts/__tests__/EventTest/KeyboardEvent.test.js
index 094cb1fe..ccc29222 100644
--- a/scripts/__tests__/EventTest/KeyboardEvent.test.js
+++ b/scripts/__tests__/EventTest/KeyboardEvent.test.js
@@ -1,8 +1,17 @@
 import * as Horizon from '@cloudsop/horizon/index.ts';
-import { getLogUtils } from '../jest/testUtils';
+import {getLogUtils} from '../jest/testUtils';
 
 describe('Keyboard Event', () => {
   const LogUtils = getLogUtils();
+  const getKeyboardEvent = (type, keyCode, code, charCode) => {
+    return new KeyboardEvent(type, {
+      keyCode: keyCode ?? undefined,
+      code: code ?? undefined,
+      charCode: charCode ?? undefined,
+      bubbles: true,
+      cancelable: true,
+    });
+  };
 
   it('keydown,keypress,keyup的keycode,charcode', () => {
     const node = Horizon.render(
@@ -16,26 +25,12 @@ describe('Keyboard Event', () => {
       />,
       container,
     );
-    node.dispatchEvent(
-      new KeyboardEvent('keydown', {
-        keyCode: 50,
-        code: 'Digit2',
-        bubbles: true,
-        cancelable: true,
-      }),
-    );
-    node.dispatchEvent(
-      new KeyboardEvent('keyup', {
-        keyCode: 50,
-        code: 'Digit2',
-        bubbles: true,
-        cancelable: true,
-      }),
-    );
+    node.dispatchEvent(getKeyboardEvent('keydown', 50, 'Digit2'));
+    node.dispatchEvent(getKeyboardEvent('keyup', 50, 'Digit2'));
 
     expect(LogUtils.getAndClear()).toEqual([
       'onKeyDown: keycode: 50,charcode: 0',
-      'onKeyUp: keycode: 50,charcode: 0'
+      'onKeyUp: keycode: 50,charcode: 0',
     ]);
   });
 
@@ -48,17 +43,10 @@ describe('Keyboard Event', () => {
       />,
       container,
     );
-    node.dispatchEvent(
-      new KeyboardEvent('keypress', {
-        charCode: 50,
-        code: 'Digit2',
-        bubbles: true,
-        cancelable: true,
-      }),
-    );
+    node.dispatchEvent(getKeyboardEvent('keypress', undefined, 'Digit2', 50));
 
     expect(LogUtils.getAndClear()).toEqual([
-      'onKeyPress: keycode: 0,charcode: 50'
+      'onKeyPress: keycode: 0,charcode: 50',
     ]);
   });
 
@@ -71,15 +59,9 @@ describe('Keyboard Event', () => {
       />,
       container,
     );
-    node.dispatchEvent(
-      new KeyboardEvent('keypress', {
-        charCode: 13,
-        bubbles: true,
-        cancelable: true,
-      }),
-    );
+    node.dispatchEvent(getKeyboardEvent('keypress', undefined, undefined, 13));
     expect(LogUtils.getAndClear()).toEqual([
-      'onKeyPress: keycode: 0,charcode: 13'
+      'onKeyPress: keycode: 0,charcode: 13',
     ]);
   });
 
@@ -98,22 +80,8 @@ describe('Keyboard Event', () => {
       />,
       container,
     );
-    node.dispatchEvent(
-      new KeyboardEvent('keydown', {
-        code: 'Digit2',
-        bubbles: true,
-        cancelable: true,
-      }),
-    );
-
-    node.dispatchEvent(
-      new KeyboardEvent('keypress', {
-        keyCode: 50,
-        code: 'Digit2',
-        bubbles: true,
-        cancelable: true,
-      }),
-    );
+    node.dispatchEvent(getKeyboardEvent('keydown', undefined, 'Digit2'));
+    node.dispatchEvent(getKeyboardEvent('keypress', undefined, 'Digit2', 50));
 
     node.dispatchEvent(
       new KeyboardEvent('keyup', {
@@ -126,7 +94,7 @@ describe('Keyboard Event', () => {
     expect(LogUtils.getAndClear()).toEqual([
       'onKeyDown: code: Digit2',
       'onKeyPress: code: Digit2',
-      'onKeyUp: code: Digit2'
+      'onKeyUp: code: Digit2',
     ]);
   });
 
@@ -149,32 +117,14 @@ describe('Keyboard Event', () => {
       />,
       container,
     );
+    div.dispatchEvent(getKeyboardEvent('keydown', 40));
+    div.dispatchEvent(getKeyboardEvent('keyup', 40));
+    div.dispatchEvent(getKeyboardEvent('keypress', 40));
 
-    div.dispatchEvent(
-      new KeyboardEvent('keydown', {
-        keyCode: 40,
-        bubbles: true,
-        cancelable: true,
-      }),
-    );
-    div.dispatchEvent(
-      new KeyboardEvent('keyup', {
-        keyCode: 40,
-        bubbles: true,
-        cancelable: true,
-      }),
-    );
-    div.dispatchEvent(
-      new KeyboardEvent('keypress', {
-        charCode: 40,
-        bubbles: true,
-        cancelable: true,
-      }),
-    );
     expect(LogUtils.getAndClear()).toEqual([
       'keydown handle',
       'keyup handle',
-      'keypress handle'
+      'keypress handle',
     ]);
   });
 });