为循环中的函数编写测试用例的最佳方法是什么

Question

I want to write a testcase but that function is in loop

def myfunction():
   for file in files:
      myfun(file, Temp=True)

Answer 1

One important thing to understand here is that, you dont need to test the loop. What you need to do is test the function itself.

Thus write a test that tests myfun . Later on you can add more tests depending on the type of files that myfun is expected to handle.

Answer 2

If what you wanna test is really myfunction , the simplest way is to replace the hardcoded call to myfun by a callback, ie

def myfunction(callback=myfun):
     files = whatever()
     for f in files:
         callback(f, temp=True)

Then you can pass anything you want as callback for your tests.