tests/table/test_statistics.py

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from pyiceberg.table.statistics import BlobMetadata, PartitionStatisticsFile, StatisticsFile


def test_partition_statistics_file() -> None:
    partition_statistics_file_json = (
        """{"snapshot-id":123,"statistics-path":"s3://bucket/statistics.parquet","file-size-in-bytes":345}"""
    )
    partition_statistics_file = PartitionStatisticsFile.model_validate_json(partition_statistics_file_json)

    assert partition_statistics_file == PartitionStatisticsFile(
        snapshot_id=123, statistics_path="s3://bucket/statistics.parquet", file_size_in_bytes=345
    )

    assert partition_statistics_file.model_dump_json() == partition_statistics_file_json


def test_statistics_file() -> None:
    statistics_file_json = """{"snapshot-id":123,"statistics-path":"s3://bucket/statistics.parquet","file-size-in-bytes":345,"file-footer-size-in-bytes":456,"blob-metadata":[{"type":"apache-datasketches-theta-v1","snapshot-id":567,"sequence-number":22,"fields":[1,2,3],"properties":{"foo":"bar"}}]}"""
    statistics_file = StatisticsFile.model_validate_json(statistics_file_json)

    assert statistics_file == StatisticsFile(
        snapshot_id=123,
        statistics_path="s3://bucket/statistics.parquet",
        file_size_in_bytes=345,
        file_footer_size_in_bytes=456,
        key_metadata=None,
        blob_metadata=[
            BlobMetadata(
                type="apache-datasketches-theta-v1",
                snapshot_id=567,
                sequence_number=22,
                fields=[1, 2, 3],
                properties={"foo": "bar"},
            )
        ],
    )

    assert statistics_file.model_dump_json() == statistics_file_json