dao/create_tables.sql

+DROP TABLE IF EXISTS person;
+
 CREATE TABLE person  (
   id int(11) NOT NULL AUTO_INCREMENT,
   navn varchar(256) NOT NULL,

dao/persondao.test.js

@@ -22,6 +22,10 @@ beforeAll(done => {
   });
 });
 
+afterAll(() => {
+  pool.end();
+});
+
 test("get one person from db", done => {
   function callback(status, data) {
     console.log(