def test_species_to_json(self): self.assertEqual(Convert.species_to_json(self.species_1), self.jSpecies_1) self.assertNotEqual(Convert.species_to_json(self.species_1), self.jSpecies_2) self.species_1.population = -1 self.assertRaises(AssertionError, Convert.species_to_json, self.species_1)