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82 lines
2.7 KiB
Python
82 lines
2.7 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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from datetime import datetime
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from typing import Optional
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import pytest
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from superset.db_engine_specs.redshift import RedshiftEngineSpec
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from tests.unit_tests.db_engine_specs.utils import assert_convert_dttm
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from tests.unit_tests.fixtures.common import dttm # noqa: F401
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@pytest.mark.parametrize(
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"target_type,expected_result",
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[
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("Date", "TO_DATE('2019-01-02', 'YYYY-MM-DD')"),
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(
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"DateTime",
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"TO_TIMESTAMP('2019-01-02 03:04:05.678900', 'YYYY-MM-DD HH24:MI:SS.US')",
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),
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(
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"TimeStamp",
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"TO_TIMESTAMP('2019-01-02 03:04:05.678900', 'YYYY-MM-DD HH24:MI:SS.US')",
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),
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("UnknownType", None),
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],
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)
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def test_convert_dttm(
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target_type: str,
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expected_result: Optional[str],
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dttm: datetime, # noqa: F811
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) -> None:
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from superset.db_engine_specs.redshift import (
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RedshiftEngineSpec as spec, # noqa: N813
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)
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assert_convert_dttm(spec, target_type, expected_result, dttm)
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@pytest.mark.parametrize(
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"table_name,schema_name,expected_table,expected_schema",
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[
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("BPO_mytest_2", "MySchema", "bpo_mytest_2", "myschema"),
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("MY_TABLE", None, "my_table", None),
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("already_lower", "lower_schema", "already_lower", "lower_schema"),
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],
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)
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def test_normalize_table_name_for_upload(
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table_name: str,
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schema_name: Optional[str],
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expected_table: str,
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expected_schema: Optional[str],
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) -> None:
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"""
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Test that table and schema names are normalized to lowercase for Redshift.
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Redshift folds unquoted identifiers to lowercase, so we need to normalize
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table names to ensure consistent behavior when checking table existence
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and performing replace operations.
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"""
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normalized_table, normalized_schema = (
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RedshiftEngineSpec.normalize_table_name_for_upload(table_name, schema_name)
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)
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assert normalized_table == expected_table
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assert normalized_schema == expected_schema
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