Python数据驱动模块DDT
一.DDT简介
Data Driven Testing，数据驱动，简单来说就是测试数据的参数化
Python数据驱动模块DDT，包含类的装饰器ddt和两个方法装饰器data（直接输入测试数据）
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(*参数)
拆分参数为多个，运行多次用例
@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
二、安装DDT
pip install ddt
三、导入模块
import requests,json,unittest from ddt import ddt,data,unpack
四、案例
@ddt
@data(参数)
实验证明：
1、@data可传列表、元祖、字典
2、@data（参数）时，是把参数当做一个变量传入处理的
#data是元祖
import requests,json,unittest
from ddt import ddt,data,unpack
@ddt
class Test(unittest.TestCase):
name=(('橙子','橘子'),('柠檬','柚子'))
@data(name)
def test(self,name):
print(name)
if __name__=='__main__':
unittest.main()
"C:\Program Files\Python35\python.exe" C:/Users/wangli/PycharmProjects/Test/Test/test.py
.
----------------------------------------------------------------------
Ran 1 test in 0.000s
OK
(('橙子', '橘子'), ('柠檬', '柚子'))
Process finished with exit code 0
#data是列表
@ddt
class Test(unittest.TestCase):
name=[['橙子','橘子'],['柠檬','柚子']]
@data(name)
def test(self,name):
print(name)
if __name__=='__main__':
unittest.main()
"C:\Program Files\Python35\python.exe" C:/Users/wangli/PycharmProjects/Test/Test/test.py
[['橙子', '橘子'], ['柠檬', '柚子']]
.
----------------------------------------------------------------------
Ran 1 test in 0.000s
OK
Process finished with exit code 0
#data是字典
@ddt
class Test(unittest.TestCase):
name={'name':'王荔','age':11}
@data(name)
def test(self,name):
print(name)
if __name__=='__main__':
unittest.main()
"C:\Program Files\Python35\python.exe" C:/Users/wangli/PycharmProjects/Test/Test/test.py
.
{'name': '王荔', 'age': 11}
----------------------------------------------------------------------
Ran 1 test in 0.000s
OK
Process finished with exit code 0
@ddt
@data(*参数)
实验证明：
1、@data可传列表、元祖、字典
2、@data（*参数）时，是把参数拆分成多个迭代次数
import requests,json,unittest
from ddt import ddt,data,unpack
@ddt
class Test(unittest.TestCase):
name=(('橙子','橘子'),('柠檬','柚子'))
@data(*name)
def test(self,name):
print(name)
if __name__=='__main__':
unittest.main()
"C:\Program Files\Python35\python.exe" C:/Users/wangli/PycharmProjects/Test/Test/test.py
..
('橙子', '橘子')
----------------------------------------------------------------------
('柠檬', '柚子')
Ran 2 tests in 0.000s
OK
Process finished with exit code 0
@ddt
class Test(unittest.TestCase):
name=[['橙子','橘子'],['柠檬','柚子']]
@data(*name)
def test(self,name):
print(name)
if __name__=='__main__':
unittest.main()
"C:\Program Files\Python35\python.exe" C:/Users/wangli/PycharmProjects/Test/Test/test.py
..
['橙子', '橘子']
----------------------------------------------------------------------
['柠檬', '柚子']
Ran 2 tests in 0.000s
OK
Process finished with exit code 0
@ddt
class Test(unittest.TestCase):
name=[{'name':'王荔','age':11},{'name':'王荔','age':11}]
@data(*name)
def test(self,name):
print(name)
if __name__=='__main__':
unittest.main()
"C:\Program Files\Python35\python.exe" C:/Users/wangli/PycharmProjects/Test/Test/test.py
..
{'age': 11, 'name': '王荔'}
{'age': 11, 'name': '王荔'}
----------------------------------------------------------------------
Ran 2 tests in 0.001s
OK
Process finished with exit code 0
@ddt
@data(*参数)
@unpack
实验证明：
1、@data可传列表、元祖、字典
2、@data（*参数）时，是把参数拆分成多个迭代次数
3、@unpack 是把参数拆分成多个参数传入
import requests,json,unittest
from ddt import ddt,data,unpack
@ddt
class Test(unittest.TestCase):
name=(('橙子','橘子'),('柠檬','柚子'))
@data(*name)
@unpack
def test(self,name1,name2):
print(name1,name2)
if __name__=='__main__':
unittest.main()
"C:\Program Files\Python35\python.exe" C:/Users/wangli/PycharmProjects/Test/Test/test.py
橙子 橘子
柠檬 柚子
..
----------------------------------------------------------------------
Ran 2 tests in 0.000s
OK
Process finished with exit code 0
@ddt
class Test(unittest.TestCase):
name=[['橙子','橘子'],['柠檬','柚子']]
@data(*name)
@unpack
def test(self,name1,name2):
print(name1,name2)
if __name__=='__main__':
unittest.main()
"C:\Program Files\Python35\python.exe" C:/Users/wangli/PycharmProjects/Test/Test/test.py
..
橙子 橘子
----------------------------------------------------------------------
Ran 2 tests in 0.001s
OK
柠檬 柚子
Process finished with exit code 0
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原始发表：2019-08-01，如有侵权请联系 cloudcommunity@tencent.com 删除
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