Python 如何从json文件中读取参数并将其放入setUpClass(cls)
有没有一种方法可以让python unittest从文件中读取参数并将其分配给setUpClass(cls) 示例: 我有一个json文件,其中包含:Python 如何从json文件中读取参数并将其放入setUpClass(cls),python,python-unittest,Python,Python Unittest,有没有一种方法可以让python unittest从文件中读取参数并将其分配给setUpClass(cls) 示例: 我有一个json文件,其中包含: { "browserType" : "Chrome", "ip" : "11.111.111.111", "port" : 4444 } 装饰师: def params_from_file(file): """Decorator to load params from json file.""" def
{
"browserType" : "Chrome",
"ip" : "11.111.111.111",
"port" : 4444
}
装饰师:
def params_from_file(file):
"""Decorator to load params from json file."""
def decorator(func_to_decorate):
@wraps(func_to_decorate)
def wrapper(self, *args, **kwargs):
with open(file, 'r') as fh:
kwargs = json.loads(fh.read())
return func_to_decorate(self, **kwargs)
return wrapper
return decorator
测试等级:
class H5Tests(unittest.TestCase):
@classmethod
@params_from_file("file.json")
def setUpClass(cls):
cls.ip = ip
cls.browser_type = browserType
cls.port = port
# some more code
@classmethod
def tearDownClass(cls):
# some code
def test_open_welcome_page(self):
# some code for the test
正如您所提到的,您可以使用decorator,将json文件传递给它,从文件加载数据并用作修饰函数的参数,将unittest
.py
文件更改为如下所示:
import unittest
import json
from functools import wraps
def params_from_file(file):
"""Decorator to load params from json file."""
def decorator(func_to_decorate):
@wraps(func_to_decorate)
def wrapper(self, *args, **kwargs):
with open(file, 'r') as fh:
kwargs = json.loads(fh.read())
return func_to_decorate(self, **kwargs)
return wrapper
return decorator
class H5Tests(unittest.TestCase):
@classmethod
@params_from_file("file.json") #{"browserType": "Chrome", "ip": "11.111.111.111", "port":4444 }
def setUpClass(cls, browserType, ip, port):#here you can put them in
cls.browser_type = browserType
cls.ip = ip
cls.port = port
# some more code
@classmethod
def tearDownClass(cls):
# some code
def test_open_welcome_page(self):
# some code for the test
# here you can use them in test cases
print(self.ip) #11.111.111.111
print(self.browser_type) #Chrome
print(self.port) #4444
非常感谢您的回答,非常好用。我想问你:如果我的json文件的属性比我需要的多,如何忽略它们。例如,如果还有“操作系统”:“Windows”,但我的setUpClass(cls、ip、browserType、port)不使用此操作系统,我如何轻松摆脱它。@stefan.stt你的下一个问题是什么?实际上我已经知道了如何做,只需将**kwargs添加到setUpClass(cls、ip、browserType、port、**kwargs)。再次感谢你们的支持,干杯@stefan.stt更新很好,希望它也能帮助其他人,干杯!为什么我得到的setUpClass方法的签名与基类TestCase的签名不匹配?