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import unittest
from botocore.stub import Stubber
import boto3
from src.table_sync import kinesis_stream_settings


def test_build_dynamodb_auto_scaling():
    dynamodb_client = boto3.client("dynamodb", "us-east-1")
    dynamodb_stubber = Stubber(dynamodb_client)
    dynamodb_stubber.add_response(
        "describe_kinesis_streaming_destination",
        {
            "TableName": "sample-table",
            "KinesisDataStreamDestinations": [
                {
                    "StreamArn": "arn:aws:kinesis:us-east-1:123456789012:stream/DynamoDB-Test-Stream",
                    "DestinationStatus": "ACTIVE",
                }
            ],
        },
        {"TableName": "source-table"},
    )
    dynamodb_stubber.activate()
    expected_cfn_resources = {
        "StreamArn": "arn:aws:kinesis:us-east-1:123456789012:stream/DynamoDB-Test-Stream"
    }
    cfn_resources = kinesis_stream_settings.build_kinesis_stream_template(
        dynamodb_client=dynamodb_client, source_table_name="source-table"
    )
    assert cfn_resources.__eq__(expected_cfn_resources)


if __name__ == "__main__":
    unittest.main()