diff --git a/sort/test.mjs b/sort/test.mjs
index 9b792d2..936c4ce 100644
--- a/sort/test.mjs
+++ b/sort/test.mjs
@@ -2,14 +2,11 @@ import { generateRandomArray, measureTime, isSort } from "../util/index.mjs";
 import { shellSort } from "./shell-sort.mjs";
 import {insertionSort } from "./insertion-sort.mjs"
 import { bubbleSort } from "./bubble-sort.mjs"
+import { mergeSort } from "./merge-sort.mjs";
 
-let arr = generateRandomArray(10000)
-let arr2 = arr.slice()
-let arr3 = arr.slice()
+let arr = generateRandomArray(10)
 
-measureTime(bubbleSort,arr)
-measureTime(insertionSort,arr2)
-measureTime(shellSort,arr3)
-console.log(isSort(arr));
-console.log(isSort(arr2));
-console.log(isSort(arr3));
\ No newline at end of file
+measureTime(bubbleSort,arr.slice())
+measureTime(insertionSort,arr.slice())
+measureTime(shellSort,arr.slice())
+let mergeArr = measureTime(mergeSort, arr.slice()) // 归并排序会返回一个新数组，不对原数组修改