import unittest


class InitializationTests(unittest.TestCase):
    
    def test_initialization(self):
        """Check the test suite runs by affirming 2+2=4

        """
        self.assertEqual(2 + 2, 4)
        
    def test_import(self):
        """
        Ensure the test suite can import our module
        """
        try:
            import aids
        except ImportError:
            self.fail("Was not able to import module aids")

Update __init__.py