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"""Unit tests for Schema (no cluster required)."""

import pyarrow as pa

import fluss


def test_get_primary_keys():
    fields = pa.schema([
        pa.field("id", pa.int32()),
        pa.field("name", pa.string()),
    ])

    schema_with_pk = fluss.Schema(fields, primary_keys=["id"])
    assert schema_with_pk.get_primary_keys() == ["id"]

    schema_without_pk = fluss.Schema(fields)
    assert schema_without_pk.get_primary_keys() == []