class TestTower_CostsSE(unittest.TestCase):

    def setUp(self):

        # simple test of module
        self.tower = Tower_CostsSE()
    
        self.tower.tower_mass = 434559.0
        self.tower.year = 2009
        self.tower.month =  12
    
    def test_functionality(self):
        
        self.tower.run()
        
        self.assertEqual(round(self.tower.cost,2), 987180.59)