How do I deliberately make a specific exception in a unit test?

In the unittest module, You must write TestCase.assertRaises().

For example,

import mymod

class MyTestCase(unittest.TestCase):
    def test1(self):
        self.assertRaises(ZeroDivisionError, mymod.myfunc)

Together

If a function receives a factor, self.assertRaises(ZeroDivisionError, mymod.myfunc, arg1, arg2) You can pass the factor as shown in .