用参数模拟函数的Python单元测试

我试图模拟一个函数，该函数有一个调用另一个方法的参数

我知道在没有参数的情况下修补函数，你可以这样做

def monthly_schedule(self, month):
        response = requests.get(f'http://company.com/{self.last}/{month}')
        if response.ok:
            return response.text
        else:
            return 'Bad Response!'

如何模拟具有如下所示语法的函数

股票（股票代码）是导入的，与“股票”类不同

from iexfinance.stocks import Stock
class Stocks:
    def price(self, ticker):
        price = Stock(ticker).get_price()
        self.myStockData.at["price", ticker] = price

这种性质的测试似乎会在每个变量上抛出一个“ModuleNotFoundError”

with patch('stocks.Stock(ticker).get_price') as mock:
with patch('Stock(ticker).get_price') as mock:
with patch('stocks.get_price') as mock:

为简洁起见，并非所有代码都显示出来。 任何帮助都将不胜感激。谢谢

Stock（ticker）

将返回某个类的对象，假设该类是

A

。然后，调用

Stock（ticker.get\u price

将调用方法

A.get\u price

。这就是你必须修补的地方

with patch('stocks.Stock(ticker).get_price') as mock:
with patch('Stock(ticker).get_price') as mock:
with patch('stocks.get_price') as mock:

import unittest
from unittest.mock import patch
from stocks import Stocks

class MyTestCase(unittest.TestCase):
    def test_price(self):
        with patch('stocks.Stock(ticker).get_price') as mock:
            mock = 300.00
            self.test.price('AAPL')
            self.assertEqual(self.test.myStockData.at["price", 'AAPL'], 300)