def test_api_changelog_empty_list(self):
self.assertEqual(api_changelog([]), '')
def test_api_changelog_missing_text_entry(self):
self.assertEqual(api_changelog([('now', 'atodorov')]), '')
def test_api_changelog(self):
self.assertEqual(api_changelog([[0, 1, "Heavy!"], [0, 1, "Light!"]]),
"Heavy!")
