[HAI] twoSumHashtable update taste cases

lib/twoSumHashTable/twoSumHashTable.test.ts

@@ -2,13 +2,17 @@ import { describe, it, expect } from "vitest";
 import { twoSumHashTable } from "./twoSumHashTable.ts";
 
 describe("twoSumHashTable", () => {
-  let sortedArray = [-12, 1, 4, 6, 22];
 
-  it("twoSumHashTable", () => {
-    expect(twoSumHashTable(sortedArray, 4)).toBe(2);
+  it("[2,7,11,15], 9 => [0, 1]", () => {
+    expect(twoSumHashTable([2, 7, 11, 15], 9)).toEqual([0, 1]);
   });
 
-  it("twoSumHashTable", () => {
-    expect(twoSumHashTable(sortedArray, 3)).toBe(-1);
+  it("[3,2,4], 6 => [1, 2]", () => {
+    expect(twoSumHashTable([3, 2, 4], 6)).toEqual([1, 2]);
   });
+
+  it("[3, 3], 6 => [0, 1]", () => {
+    expect(twoSumHashTable([3, 3], 6)).toEqual([0, 1]);
+  });
+
 });