python ddt实现数据驱动

首先安装ddt模块,命令:pip install ddt

通常情况下,data中的数据按照一个参数传递给测试用例,如果data中含有多个数据,以元组,列表,字典等数据,需要自行在脚本中对数据进行分解或者使用unpack分解数据。

@data(a,b)

那么a和b各运行一次用例

 

@data([a,d],[c,d])

如果没有@unpack,那么[a,b]当成一个参数传入用例运行

如果有@unpack,那么[a,b]被分解开,按照用例中的两个参数传递

一:

 1 import unittest
 2 from ddt import ddt,data,unpack
 3 from time import sleep
 4 from selenium import webdriver
 5 @ddt
 6 class MyTesting(unittest.TestCase):
 7     def setUp(self):
 8         self.dr = webdriver.Chrome()
 9         self.dr.get('http://www.baidu.com')
10 
11     @data(['python','python_百度搜索'],['java','java_百度搜索'])
12     @unpack
13     def test_baidu(self,a,b):
14         self.dr.find_element_by_id('kw').send_keys(a)
15         self.dr.find_element_by_id('su').click()
16         sleep(2)
17         c = self.dr.title
18         self.assertEqual(b,c)
19         
20 
21     def tearDown(self):
22         self.dr.close()
23 if __name__ == '__main__':
24     unittest.main(verbosity=2)

 传入字典参数

import unittest
from ddt import ddt,data,unpack
from time import sleep
from selenium import webdriver
@ddt
class MyTesting(unittest.TestCase):
    def setUp(self):
        self.dr = webdriver.Chrome()
        self.dr.get('http://www.baidu.com')

    @data({'a':'python','b':'python_百度搜索'},{'a':'java','b':'java_百度搜索'})
    @unpack
    def test_baidu(self,a,b):
        self.dr.find_element_by_id('kw').send_keys(a)
        self.dr.find_element_by_id('su').click()
        sleep(2)
        c = self.dr.title
        self.assertEqual(b,c)
        

    def tearDown(self):
        self.dr.close()
if __name__ == '__main__':
    unittest.main()

二:传入JSON文件

import unittest
from ddt import ddt,data,unpack,file_data
from time import sleep
from selenium import webdriver
@ddt
class MyTesting(unittest.TestCase):
    def setUp(self):
        self.dr = webdriver.Chrome()
        self.dr.get('http://www.baidu.com')

    @file_data('test.json')
    @unpack
    def test_baidu(self,a,b):
        self.dr.find_element_by_id('kw').send_keys(a)
        self.dr.find_element_by_id('su').click()
        sleep(2)
        c = self.dr.title
        self.assertEqual(b,c)      

    def tearDown(self):
        self.dr.close()
if __name__ == '__main__':
    unittest.main()

test.json文件内容如下,和上面代码同一路径

{
    "positive_integer_range": {
        "a": "python",
        "b": "python_百度搜索"
    },
    "negative_integer_range": {
        "a": "java",
        "b": "java_百度搜索"
    }
}

读取json文件的值

import unittest
from ddt import ddt,data,unpack,file_data
from time import sleep
from selenium import webdriver
@ddt
class MyTesting(unittest.TestCase):
    def setUp(self):
        self.dr = webdriver.Chrome()
        self.dr.get('http://www.baidu.com')

    @file_data('test.json')
    @unpack
    def test_baidu(self,value):
        self.dr.find_element_by_id('kw').send_keys(value)
        self.dr.find_element_by_id('su').click()
        # sleep(2)
        # c = self.dr.title
        # self.assertEqual(b,c)      

    def tearDown(self):
        self.dr.close()
if __name__ == '__main__':
    unittest.main()

json文件如下:

{
    "unsorted_list": "python",
    "sorted_list": "java"
}

或者json文件改成一下:

["python","java"]

 

posted @ 2020-04-13 20:26  Harry_666  阅读(372)  评论(0编辑  收藏  举报