python操作mysql的应用（重复运行注册用户的接口）

1.comm里放置数据操作代码

2.conftest.py里放置删除用户代码

3.test_register.py里放置测试注册用户的代码(运行注册接口之前先从数据库删除注册的账号)

----------------------------comm---------------------------------------
import pymysql

　　dbinfo={

　　"host":"192.16.8.x",

　　"post":3306,

　　"user":"root",

　　"password":"xxxx",

　　"database":"xxx"

　　}

class DBopera:
    def __init__(self,dbinfo=dbinfo):
        self.conn = pymysql.connect(**dbinfo)
        self.cur = self.conn.cursor()
    def dbselect(self,sql):
        self.cur.execute(sql)
        result = self.cur.fetchall()
        print(result)
    def dbcommit(self,sql):
        self.cur.execute(sql)
        self.conn.commit()
    def dbclose(self):
        self.cur.close()
        self.conn.close()
-----------------------------------------------------------------------


------------------------------conftest.py------------------------------

import pytest
import pymysql
from comm import conn.DBopera

@pytest.fixture(params=["username1","username2"]
def delete_user(request):
　　user = request.param
　　db = DBopera()
　　db.dbcommit(sql='delete from tablename where username = "%s";'%user)
　　db.close()
　　return user

-------------------------test_register.py------------------------------
import requests
def test_register(delete_user):
　　url = "http://xxxx/register"
　　body = {
　　"username":delete_user,
　　"password":"123456",
　　"email":"[email protected]"
}
　　r = requests.post(url,json=body)
　　print(r.text())