actual fault this time

dao/persondao.test.js

@@ -110,7 +110,7 @@ test("delete a person", done => {
       "Test callback: status=" + status + ", data.length=" + data.length
     );
     //expect(data.length).toBeLessThan(3);
-    expect(data.length).toBeLessThan(5);
+    expect(data.length).toBeLessThan(2);
     done();
   }