mirror of https://github.com/apache/superset.git
128 lines
4.1 KiB
Python
128 lines
4.1 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, Union
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from unittest import mock
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import pytest
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from sqlalchemy import column, types
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from sqlalchemy.dialects import oracle
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from sqlalchemy.dialects.oracle import DATE, NVARCHAR, VARCHAR
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from sqlalchemy.sql import quoted_name
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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
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@pytest.mark.parametrize(
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"column_name,expected_result",
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[
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("This_Is_32_Character_Column_Name", "3b26974078683be078219674eeb8f5"),
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("snake_label", "snake_label"),
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("camelLabel", "camelLabel"),
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],
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)
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def test_oracle_sqla_column_name_length_exceeded(
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column_name: str, expected_result: Union[str, quoted_name]
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) -> None:
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from superset.db_engine_specs.oracle import OracleEngineSpec
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label = OracleEngineSpec.make_label_compatible(column_name)
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assert isinstance(label, quoted_name)
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assert label.quote is True
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assert label == expected_result
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def test_oracle_time_expression_reserved_keyword_1m_grain() -> None:
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from superset.db_engine_specs.oracle import OracleEngineSpec
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col = column("decimal")
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expr = OracleEngineSpec.get_timestamp_expr(col, None, "P1M")
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result = str(expr.compile(dialect=oracle.dialect()))
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assert result == "TRUNC(CAST(\"decimal\" as DATE), 'MONTH')"
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@pytest.mark.parametrize(
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"sqla_type,expected_result",
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[
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(DATE(), "DATE"),
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(VARCHAR(length=255), "VARCHAR(255 CHAR)"),
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(VARCHAR(length=255, collation="utf8"), "VARCHAR(255 CHAR)"),
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(NVARCHAR(length=128), "NVARCHAR2(128)"),
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],
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)
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def test_column_datatype_to_string(
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sqla_type: types.TypeEngine, expected_result: str
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) -> None:
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from superset.db_engine_specs.oracle import OracleEngineSpec
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assert (
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OracleEngineSpec.column_datatype_to_string(sqla_type, oracle.dialect())
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== expected_result
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)
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def test_fetch_data_no_description() -> None:
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from superset.db_engine_specs.oracle import OracleEngineSpec
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cursor = mock.MagicMock()
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cursor.description = []
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assert OracleEngineSpec.fetch_data(cursor) == []
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def test_fetch_data() -> None:
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from superset.db_engine_specs.oracle import OracleEngineSpec
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cursor = mock.MagicMock()
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result = ["a", "b"]
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cursor.fetchall.return_value = result
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assert OracleEngineSpec.fetch_data(cursor) == result
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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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("DateTime", """TO_DATE('2019-01-02T03:04:05', 'YYYY-MM-DD"T"HH24:MI:SS')"""),
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(
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"TimeStamp",
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"""TO_TIMESTAMP('2019-01-02T03:04:05.678900', 'YYYY-MM-DD"T"HH24:MI:SS.ff6')""",
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),
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("Other", None),
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],
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)
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def test_convert_dttm(
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target_type: str, expected_result: Optional[str], dttm: datetime
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) -> None:
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from superset.db_engine_specs.oracle import OracleEngineSpec as spec
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assert_convert_dttm(spec, target_type, expected_result, dttm)
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@pytest.mark.parametrize(
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"name,expected_result",
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[
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("col", "COL"),
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("Col", "Col"),
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("COL", "COL"),
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],
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)
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def test_denormalize_name(name: str, expected_result: str):
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from superset.db_engine_specs.oracle import OracleEngineSpec as spec
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assert spec.denormalize_name(oracle.dialect(), name) == expected_result
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