import unittest

class IntegerArithmenticTestCase(unittest.TestCase):
    def testAdd(self):  ## test method names begin 'test*'
        self.assertEqual((1 + 2), 3)
        self.assertEqual(0 + 1, 1)
    def testMultiply(self):
        self.assertEqual((0 * 10), 0)
        self.assertEqual((5 * 8), 40)

unittest.main(exit=False)
import unittest

class IntegerArithmeticTestCase(unittest.TestCase):
    def testAdd(self):  ## test method names begin 'test*'
        self.assertEqual((1 + 2), 3)
        self.assertEqual(0 + 1, 1)
    def testMultiply(self):
        self.assertEqual((0 * 10), 0)
        self.assertEqual((5 * 8), 40)

suite = unittest.TestLoader().loadTestsFromTestCase(IntegerArithmeticTestCase)
unittest.TextTestRunner(verbosity=0).run(suite)
Change unittest test in test suite : it is not run in module __main__