Add unit tests for processChatTimeFilter function in chat utils

test/cases/service/core/chat/utils.test.ts

@@ -0,0 +1,128 @@
+import { describe, it, expect } from 'vitest';
+import { processChatTimeFilter } from '@/service/core/chat/utils';
+import type { DatasetCiteItemType } from '@fastgpt/global/core/dataset/type';
+
+describe('processChatTimeFilter', () => {
+  const baseTime = new Date('2025-01-01');
+
+  it('should return original item if no history', () => {
+    const item: DatasetCiteItemType = {
+      id: '1',
+      q: 'original q',
+      a: 'original a',
+      updateTime: baseTime.getTime(),
+      history: undefined
+    };
+
+    const result = processChatTimeFilter([item], baseTime);
+    expect(result).toEqual([item]);
+  });
+
+  it('should return original item if updateTime <= chatTime', () => {
+    const item: DatasetCiteItemType = {
+      id: '1',
+      q: 'original q',
+      a: 'original a',
+      updateTime: baseTime.getTime() - 1000,
+      history: [
+        {
+          q: 'history q',
+          a: 'history a',
+          updateTime: baseTime.getTime() - 2000
+        }
+      ]
+    };
+
+    const result = processChatTimeFilter([item], baseTime);
+    expect(result).toEqual([item]);
+  });
+
+  it('should return history item if one exists before chatTime', () => {
+    const item: DatasetCiteItemType = {
+      id: '1',
+      q: 'original q',
+      a: 'original a',
+      updateTime: baseTime.getTime() + 2000,
+      history: [
+        {
+          q: 'history q',
+          a: 'history a',
+          updateTime: baseTime.getTime() - 1000
+        }
+      ]
+    };
+
+    const result = processChatTimeFilter([item], baseTime);
+    expect(result).toEqual([
+      {
+        ...item,
+        q: 'history q',
+        a: 'history a',
+        updateTime: baseTime.getTime() - 1000,
+        updated: true
+      }
+    ]);
+  });
+
+  it('should return original item if no history before chatTime', () => {
+    const item: DatasetCiteItemType = {
+      id: '1',
+      q: 'original q',
+      a: 'original a',
+      updateTime: baseTime.getTime() + 2000,
+      history: [
+        {
+          q: 'history q',
+          a: 'history a',
+          updateTime: baseTime.getTime() + 1000
+        }
+      ]
+    };
+
+    const result = processChatTimeFilter([item], baseTime);
+    expect(result).toEqual([item]);
+  });
+
+  it('should handle multiple items', () => {
+    const items: DatasetCiteItemType[] = [
+      {
+        id: '1',
+        q: 'original q1',
+        a: 'original a1',
+        updateTime: baseTime.getTime() + 2000,
+        history: [
+          {
+            q: 'history q1',
+            a: 'history a1',
+            updateTime: baseTime.getTime() - 1000
+          }
+        ]
+      },
+      {
+        id: '2',
+        q: 'original q2',
+        a: 'original a2',
+        updateTime: baseTime.getTime() - 1000,
+        history: [
+          {
+            q: 'history q2',
+            a: 'history a2',
+            updateTime: baseTime.getTime() - 2000
+          }
+        ]
+      }
+    ];
+
+    const result = processChatTimeFilter(items, baseTime);
+    expect(result).toEqual([
+      {
+        ...items[0],
+        q: 'history q1',
+        a: 'history a1',
+        updateTime: baseTime.getTime() - 1000,
+        updated: true
+      },
+      items[1]
+    ]);
+  });
+});