feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

frontend/packages/common/chat-area/utils/__tests__/int64.test.ts

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+import { expect, it } from 'vitest';
+
+import {
+  sortInt64CompareFn,
+  getIsDiffWithinRange,
+  getMinMax,
+  compareInt64,
+  getInt64AbsDifference,
+} from '../src/int64';
+
+it('正确排序', () => {
+  expect(['123', '3', '02', '01234'].sort(sortInt64CompareFn)).toMatchObject([
+    '02',
+    '3',
+    '123',
+    '01234',
+  ]);
+});
+
+it('计算两个数字差值小于范围', () => {
+  expect(getIsDiffWithinRange('1234567', '12345678923456745678', 50)).toBe(
+    false,
+  );
+  expect(
+    getIsDiffWithinRange('12345678923456745679', '12345678923456745678', 50),
+  ).toBe(true);
+});
+
+it('get min max', () => {
+  expect(getMinMax('1', '3', '2', '5')).toMatchObject({ min: '1', max: '5' });
+  expect(getMinMax('3', '2', '5')).toMatchObject({ min: '2', max: '5' });
+  expect(getMinMax('3', '2', '1')).toMatchObject({ min: '1', max: '3' });
+  expect(getMinMax('3')).toMatchObject({ min: '3', max: '3' });
+  expect(getMinMax()).toBeNull();
+});
+
+it('compare right', () => {
+  expect(compareInt64('1').greaterThan('0')).toBe(true);
+  expect(compareInt64('1').lesserThan('10')).toBe(true);
+  expect(compareInt64('1').eq('1')).toBe(true);
+});
+
+it('get diff right', () => {
+  expect(getInt64AbsDifference('10', '200')).toBe(190);
+});