def test_empty_output_dataframe_is_correct_length(self):
generator = UniformMapGenerator()
dataframe = generator.instantiate_output_dataframe(20)
self.assertEqual(len(dataframe), 20)
def test_empty_out_dataframe_has_correct_column_names(self):
generator = UniformMapGenerator()
dataframe = generator.instantiate_output_dataframe(20)
self.assertEqual(dataframe.columns[0], 'latitude')
self.assertEqual(dataframe.columns[1], 'longitude')
def test_empty_output_dataframe_is_pandas_dataframe(self):
generator = UniformMapGenerator()
self.assertIsInstance(generator.instantiate_output_dataframe(1),
pandas.DataFrame)
