def test_read_data_path_is_dir(mock_open):
mock_open.side_effect = IsADirectoryError()
tt = TableTransformer('file.txt')
tt.logger = Mock()
output = tt.read_data()
mock_open.assert_called()
tt.logger.error.assert_called()
assert output is None
def test_read_data_file_not_found(mock_open):
mock_open.side_effect = FileNotFoundError()
tt = TableTransformer('file.txt')
tt.logger = Mock()
output = tt.read_data()
mock_open.assert_called()
tt.logger.error.assert_called()
assert output is None
def test_run_catches_FileExistsError():
tt = TableTransformer('file.txt')
tt.extractors = [Mock(), Mock()]
tt.logger = Mock()
tt.read_data = Mock()
tt.write_table = Mock(side_effect=FileExistsError('error'))
tt.run()
assert len(tt.logger.error.call_args_list) == len(tt.extractors)
def test_run_does_nothing_if_no_extractor():
tt = TableTransformer('file.txt')
tt.extractors = []
tt.logger = Mock()
tt.read_data = Mock()
tt.write_table = Mock()
tt.run()
tt.read_data.assert_not_called()
tt.write_table.assert_not_called()
tt.logger.error.assert_called()
def test_run():
tt = TableTransformer('file.txt')
tt.extractors = [Mock(), Mock()]
tt.logger = Mock()
tt.read_data = Mock()
tt.write_table = Mock()
tt.output_template = Mock()
tt.run()
for e in tt.extractors:
e.extract.assert_called_once()
e.create_table.assert_called_once()
tt.read_data.assert_called_once()
assert len(tt.write_table.call_args_list) == len(tt.extractors)
assert (len(tt.output_template.substitute.call_args_list) == len(
tt.extractors))