def test_init_data(self): """AminoAcidUsage should init with data""" a = AminoAcidUsage('aadddx') self.assertEqual(a['A'], 2) self.assertEqual(a['d'], 3) self.assertEqual(a['X'], 1) a.normalize() self.assertEqual(a['a'], 0.4) self.assertEqual(a['d'], 0.6) assert 'x' not in a