def test_save_calls_poem_render(self, mock_render):
poem = Poem(text='poem', handwriting_id='1')
poem.save()
mock_render.assert_any_call('png')
mock_render.assert_any_call('pdf')
def test_render_calls_handwriting_render_method_and_returns_rendered_poem(self, mock_render):
poem = Poem(text='poem', handwriting_id='1')
rendered_poem = poem.render()
mock_render.assert_called_with('png')
