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rusackasandClaude Opus 4.8
80928bdb6c
The "paginated query returns correct rows in order" test body was duplicated verbatim across cockroachdb/crate/db2/mssql/oracle/trino's testcontainers suites. Factor the shared table-setup/assert logic into _pagination.py, with an optional post-insert hook for CrateDB's eventual-consistency REFRESH TABLE step; each call site keeps its own test function and dialect-specific docstring. Addresses bito-code-review feedback on #43502. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
90 lines
3.2 KiB
Python
90 lines
3.2 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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"""
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Tests db_engine_specs.cockroachdb against a real CockroachDB instance,
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spun up on demand via testcontainers. Run nightly (see
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.github/workflows/nightly-testcontainers.yml), not on every merge -- these
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exercise real SQL execution and dialect introspection, which mocked unit
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tests structurally cannot.
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"""
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from collections.abc import Iterator
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import pytest
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from sqlalchemy import (
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Column,
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create_engine,
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inspect,
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Integer,
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MetaData,
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Table as SATable,
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)
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from sqlalchemy.engine import Engine
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from superset.db_engine_specs.cockroachdb import CockroachDbEngineSpec
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from superset.sql.parse import Table
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pytest.importorskip("testcontainers.community.cockroachdb")
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from testcontainers.community.cockroachdb import CockroachDBContainer # noqa: E402
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from ._pagination import assert_paginated_query_returns_correct_rows_in_order
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@pytest.fixture(scope="module")
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def engine() -> Iterator[Engine]:
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# sqlalchemy-cockroachdb registers its dialect under the plain
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# "cockroachdb" name; the container's own default ("cockroachdb+psycopg2")
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# matches the abandoned `cockroachdb` package instead (see #43501).
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with CockroachDBContainer(dialect="cockroachdb") as container:
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yield create_engine(container.get_connection_url())
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def test_paginated_query_returns_correct_rows_in_order(engine: Engine) -> None:
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"""
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A plain SQLAlchemy Core LIMIT/OFFSET query, compiled and executed against
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a real instance. Mocked tests cannot catch a dialect compiling this
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incorrectly (see apache/superset#42899, where Trino emitted OFFSET
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before LIMIT) -- only real execution can.
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"""
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assert_paginated_query_returns_correct_rows_in_order(engine)
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def test_get_columns_maps_native_types(engine: Engine) -> None:
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"""
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CockroachDbEngineSpec.get_columns wraps a real SQLAlchemy Inspector;
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this exercises that against actual server-reported column metadata
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rather than a mocked Inspector.
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"""
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metadata = MetaData()
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SATable(
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"pilot_types",
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metadata,
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Column("id", Integer, primary_key=True),
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Column("amount", Integer),
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)
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metadata.create_all(engine)
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inspector = inspect(engine)
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columns = CockroachDbEngineSpec.get_columns(inspector, Table("pilot_types"))
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by_name = {col["column_name"]: col for col in columns}
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assert set(by_name) == {"id", "amount"}
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for col in by_name.values():
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spec = CockroachDbEngineSpec.get_column_spec(str(col["type"]))
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assert spec is not None
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