Python&Selenium 数据驱动【unittest+ddt+mysql】

一、摘要

本博文将介绍Python和Selenium做自动化测试的时候，基于unittest框架，借助ddt模块使用mysql数据库为数据源作为测试输入

二、SQL脚本

# encoding = utf-8

create_database = 'CREATE DATABASE IF NOT EXISTS davieyang DEFAULT CHARSET utf8 COLLATE utf8_general_ci;'
drop_table = 'DROP TABLE testdata;'
create_table = """
    CREATE TABLE testdata(
        ID int primary key not null auto_increment comment '主键',
        BOOKNAME varchar(40) unique not null comment '书名',
        AUTHOR varchar(30) not null comment '作者'
    )engine = innodb character set utf8 comment '测试数据表';
"""

三、解析Mysql

# encoding = utf-8
"""
__title__ = ''
__author__ = 'davieyang'
__mtime__ = '2018/4/21'
"""
import pymysql
from TestData.SqlScripts import create_table
from TestData.SqlScripts import create_database
from TestData.SqlScripts import drop_table

class MySQL(object):
    def __init__(self, host, port, dbName, username, password, charset):
        self.conn = pymysql.connect(
            host=host,
            port=port,
            db=dbName,
            user=username,
            password=password,
            charset=charset
        )
        self.cur = self.conn.cursor()

    def create(self):
        try:
            self.cur.execute(create_database)
            self.conn.select_db("davieyang")
            self.cur.execute(drop_table)
            self.cur.execute(create_table)
            '''
            cur.execute("drop database if exists davieyang")   #如果davieyang数据库存在则删除
            cur.execute("create database davieyang")   #新创建一个数据库davieyang
            cur.execute("use davieyang")         #选择davieyang这个数据库
            # sql 中的内容为创建一个名为testdata的表
            sql = """create table testdata(id BIGINT,name VARCHAR(20),age INT DEFAULT 1)"""  #()中的参数可以自行设置
            conn.execute("drop table if exists testdata") # 如果表存在则删除
            conn.execute(sql)# 创建表
            # 删除
            # conn.execute("drop table testdata")
            conn.close()# 关闭游标连接
            connect.close()# 关闭数据库服务器连接 释放内存
            '''
        except pymysql.Error as e:
            raise e
        else:
            self.cur.close()
            self.conn.commit()
            self.conn.close()
            print(u"创建数据库和表成功")

    def insertDatas(self):
        try:
            sql = "insert into testdata(bookname, author) values(%s, %s);"
            self.cur.executemany(sql, [('selenium xml DataDriven', 'davieyang'),
                                    ('selenium excel DataDriven', 'davieyang'),
                                    ('selenium ddt data list', 'davieyang')])
        except pymysql.Error as e:
            raise e
        else:
            self.conn.commit()
            print(u"初始数据插入成功")
            self.cur.execute("select * from testData;")
            for i in self.cur.fetchall():
                print(i[1], i[2])
            self.cur.close()
            self.conn.close()

    def getDataFromDataBase(self):
        # 从数据库中获取数据
        # bookname作为搜索关键词，author作为期望结果
        self.cur.execute("select bookname, author from testdata;")
        # 从查询区域取回所有查询结果
        dataTuple = self.cur.fetchall()
        return dataTuple

    def closeDataBase(self):
        # 数据库清理
        self.cur.close()
        self.conn.commit()
        self.conn.close()

if __name__ == "__main__":
    db = MySQL(
        host="localhost",
        port=3306,
        dbName="davieyang",
        username="root",
        password="root",
        charset="utf8"
    )
    print(db.getDataFromDataBase())
    db.closeDataBase()

四、测试脚本

# encoding = utf-8
"""
__title__ = ''
__author__ = 'davieyang'
__mtime__ = '2018/4/21'
"""
from selenium import webdriver
import unittest
import time
import logging
import traceback
import ddt
from Util.MysqlDBUtil import MySQL
from selenium.common.exceptions import NoSuchElementException

# 初始化日志对象
logging.basicConfig(
    # 日志级别
    level=logging.INFO,
    # 时间、代码所在文件名、代码行号、日志级别名字、日志信息
    format='%(asctime)s %(filename)s[line: %(lineno)d] %(levelname)s %(message)s',
    # 打印日志的时间
    datefmt='%a, %d %b %Y %H:%M:%S',
    # 日志文件存放的目录及日志文件名
    filename='F:\\DataDriven\\TestResults\TestResults.TestResults',
    # 打开日志的方式
    filemode='w'
)

def getTestDatas():
    db = MySQL(
        host="localhost",
        port=3306,
        dbName="davieyang",
        username="root",
        password="root",
        charset="utf8"
    )
    # 从数据库中获取测试数据
    testData = db.getDataFromDataBase()
    db.closeDataBase()
    return testData

@ddt.ddt
class DataDrivenByMySQL(unittest.TestCase):

    def setUp(self):
        self.driver = webdriver.Chrome(executable_path=r"F:\automation\webdriver\chromedriver.exe")

    @ddt.data(* getTestDatas())
    def test_dataDrivenByMySQL(self, data):
        # 对获得的数据进行解包
        testData, expectData =data
        url = "http://www.baidu.com"
        self.driver.get(url)
        self.driver.maximize_window()
        print(testData, expectData)
        self.driver.implicitly_wait(10)
        try:
            self.driver.find_element_by_id("kw").send_keys(testData)
            self.driver.find_element_by_id("su").click()
            time.sleep(3)
            self.assertTrue(expectData in self.driver.page_source)
        except NoSuchElementException as e:
            logging.error(u"查找的页面元素不存在，异常堆栈信息为：" + str(traceback.format_exc()))
        except AssertionError as e:
            logging.info(u"搜索 ‘%s’,期望 ‘%s’ ,失败" % (testData, expectData))
        except Exception as e:
            logging.error(u"未知错误，错误信息：" + str(traceback.format_exc()))
        else:
            logging.info(u"搜索 ‘%s’,期望 ‘%s’ ,通过" % (testData, expectData))

    def tearDown(self):
        self.driver.quit()

if __name__ == "__main__":
    unittest.main()