diff --git a/tests/io/dynamodb/test_copy.py b/tests/io/dynamodb/test_copy.py index cffa28a..6dbb013 100644 --- a/tests/io/dynamodb/test_copy.py +++ b/tests/io/dynamodb/test_copy.py @@ -1,3 +1,5 @@ +from unittest.mock import Mock + import pytest from cratedb_toolkit.io.dynamodb.copy import DynamoDBFullLoad @@ -79,3 +81,31 @@ def test_dynamodb_copy_basic_warning(caplog, cratedb, dynamodb, dynamodb_test_ma assert results == data_out assert "Dynamic nested arrays are not supported" in caplog.text + + +def test_dynamodb_copy_verify_batch_size(caplog, cratedb, dynamodb, dynamodb_test_manager): + """ + Verify that the `batch-size` parameter on the DynamoDB URL works as expected. + """ + + ddb_document = { + "Id": {"N": "101"}, + "Name": {"S": "Hotzenplotz"}, + } + + # Define source and target URLs. + dynamodb_url = f"{dynamodb.get_connection_url_dynamodb()}/demo?region=us-east-1&batch-size=1234" + cratedb_url = f"{cratedb.get_connection_url()}/testdrive/demo" + + # Define transfer. + table_loader = DynamoDBFullLoad(dynamodb_url=dynamodb_url, cratedb_url=cratedb_url) + + # Define a mock for the `.scan()` method. + mock_scan = Mock(return_value={"Items": [ddb_document], "Count": 1}) + table_loader.dynamodb_adapter.dynamodb_client.scan = mock_scan + + # Invoke transfer. + table_loader.start() + + # Verify invocation of `.scan()` command. + mock_scan.assert_called_with(TableName="demo", ConsistentRead=False, Limit=1234)