def test_get_manifest_file_not_found(self, mock_download_file):
"""Test _get_manifest method when file is not found."""
mock_datetime = DateAccessor().today()
mock_download_file.side_effect = AWSReportDownloaderNoFileError("fake error")
manifest_file, manifest_json, manifest_modified_timestamp = self.aws_report_downloader._get_manifest(
mock_datetime
)
self.assertEqual(manifest_file, "")
self.assertEqual(manifest_json, self.aws_report_downloader.empty_manifest)
self.assertIsNone(manifest_modified_timestamp)
def mock_download_file_error(manifest):
"""Mock side effect for raising an AWSReportDownloaderNoFileError."""
raise AWSReportDownloaderNoFileError()