how to writing unit tests for exception and raise? For example I have
someFoo.py
class MyExc(Exception):
  """
  my exc
  """
  pass
def foo(a,b,c):
  raise MyExc
def foo1(a,b):
  assert a==b, 'a==b!!'
tests.py
from someFoo import foo,foo1
import unittest
class Test(unittest.TestCase):
  pass
and I can't find good solution for this
