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chore: add a test for external table reading. #812

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Merged
Genesis929 merged 1 commit into from
Jul 1, 2024
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chore: add a test for external table reading. #812

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12 changes: 12 additions & 0 deletions tests/system/small/test_session.py
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Original file line number Diff line number Diff line change
Expand Up @@ -570,6 +570,18 @@ def test_read_gbq_with_custom_global_labels(
assert len(bigframes.options.compute.extra_query_labels) == 0


def test_read_gbq_external_table(session: bigframes.Session):
# Verify the table is external to ensure it hasn't been altered
external_table_id = "bigframes-dev.bigframes_tests_sys.parquet_external_table"
external_table = session.bqclient.get_table(external_table_id)
assert external_table.table_type == "EXTERNAL"

df = session.read_gbq(external_table_id)

assert list(df.columns) == ["idx", "s1", "s2", "s3", "s4", "i1", "f1", "i2", "f2"]
assert df["i1"].max() == 99


def test_read_gbq_model(session, penguins_linear_model_name):
model = session.read_gbq_model(penguins_linear_model_name)
assert isinstance(model, bigframes.ml.linear_model.LinearRegression)
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