一、环境准备
1.安装ddt模块,打开cmd输入pip install ddt在线安装

二、数据驱动原理
1.测试数据为多个字典的list类型
2.测试类前加修饰@ddt.ddt
3.case前加修饰@ddt.data()
4.运行后用例会自动加载成三个单独的用例
# coding:utf-8
import ddt
import unittest
# 测试数据
test_data = [{"username": "zhangsan", "pwd": "zhangsan"},
             {"username": "lisi", "pwd": "lisi"},
             {"username": "wangwu", "pwd": "wangwu"},
             ]
test_data2 = [{"username": "wukong", "pwd": "wukong"},
             {"username": "wuneng", "pwd": "woneng"},
             {"username": "wujing", "pwd": "wujing"},
             ]
@ddt.ddt
class Test(unittest.TestCase):
    def setUp(self):
        print("Start!")
    def tearDown(self):
        print("end!")
    @ddt.data(*test_data)
    def test_ddt1(self, data):
        print(data)
    @ddt.data(*test_data2)
    def test_ddt2(self, data):
        print(data)
if __name__ == "__main__":
    unittest.main()
原文:http://www.cnblogs.com/lingzeng86/p/6790827.html