ZpenrMessangerProject/venv/lib/python3.12/site-packages/sqlalchemy/testing/suite/test_unicode_ddl.py

# testing/suite/test_unicode_ddl.py
# Copyright (C) 2005-2025 the SQLAlchemy authors and contributors
# <see AUTHORS file>
#
# This module is part of SQLAlchemy and is released under
# the MIT License: https://www.opensource.org/licenses/mit-license.php
# mypy: ignore-errors


from sqlalchemy import desc
from sqlalchemy import ForeignKey
from sqlalchemy import Integer
from sqlalchemy import MetaData
from sqlalchemy import testing
from sqlalchemy.testing import eq_
from sqlalchemy.testing import fixtures
from sqlalchemy.testing.schema import Column
from sqlalchemy.testing.schema import Table


class UnicodeSchemaTest(fixtures.TablesTest):
    __requires__ = ("unicode_ddl",)
    __backend__ = True

    @classmethod
    def define_tables(cls, metadata):
        global t1, t2, t3

        t1 = Table(
            "unitable1",
            metadata,
            Column("méil", Integer, primary_key=True),
            Column("\u6e2c\u8a66", Integer),
            test_needs_fk=True,
        )
        t2 = Table(
            "Unitéble2",
            metadata,
            Column("méil", Integer, primary_key=True, key="a"),
            Column(
                "\u6e2c\u8a66",
                Integer,
                ForeignKey("unitable1.méil"),
                key="b",
            ),
            test_needs_fk=True,
        )

        # Few DBs support Unicode foreign keys
        if testing.against("sqlite"):
            t3 = Table(
                "\u6e2c\u8a66",
                metadata,
                Column(
                    "\u6e2c\u8a66_id",
                    Integer,
                    primary_key=True,
                    autoincrement=False,
                ),
                Column(
                    "unitable1_\u6e2c\u8a66",
                    Integer,
                    ForeignKey("unitable1.\u6e2c\u8a66"),
                ),
                Column("Unitéble2_b", Integer, ForeignKey("Unitéble2.b")),
                Column(
                    "\u6e2c\u8a66_self",
                    Integer,
                    ForeignKey("\u6e2c\u8a66.\u6e2c\u8a66_id"),
                ),
                test_needs_fk=True,
            )
        else:
            t3 = Table(
                "\u6e2c\u8a66",
                metadata,
                Column(
                    "\u6e2c\u8a66_id",
                    Integer,
                    primary_key=True,
                    autoincrement=False,
                ),
                Column("unitable1_\u6e2c\u8a66", Integer),
                Column("Unitéble2_b", Integer),
                Column("\u6e2c\u8a66_self", Integer),
                test_needs_fk=True,
            )

    def test_insert(self, connection):
        connection.execute(t1.insert(), {"méil": 1, "\u6e2c\u8a66": 5})
        connection.execute(t2.insert(), {"a": 1, "b": 1})
        connection.execute(
            t3.insert(),
            {
                "\u6e2c\u8a66_id": 1,
                "unitable1_\u6e2c\u8a66": 5,
                "Unitéble2_b": 1,
                "\u6e2c\u8a66_self": 1,
            },
        )

        eq_(connection.execute(t1.select()).fetchall(), [(1, 5)])
        eq_(connection.execute(t2.select()).fetchall(), [(1, 1)])
        eq_(connection.execute(t3.select()).fetchall(), [(1, 5, 1, 1)])

    def test_col_targeting(self, connection):
        connection.execute(t1.insert(), {"méil": 1, "\u6e2c\u8a66": 5})
        connection.execute(t2.insert(), {"a": 1, "b": 1})
        connection.execute(
            t3.insert(),
            {
                "\u6e2c\u8a66_id": 1,
                "unitable1_\u6e2c\u8a66": 5,
                "Unitéble2_b": 1,
                "\u6e2c\u8a66_self": 1,
            },
        )

        row = connection.execute(t1.select()).first()
        eq_(row._mapping[t1.c["méil"]], 1)
        eq_(row._mapping[t1.c["\u6e2c\u8a66"]], 5)

        row = connection.execute(t2.select()).first()
        eq_(row._mapping[t2.c["a"]], 1)
        eq_(row._mapping[t2.c["b"]], 1)

        row = connection.execute(t3.select()).first()
        eq_(row._mapping[t3.c["\u6e2c\u8a66_id"]], 1)
        eq_(row._mapping[t3.c["unitable1_\u6e2c\u8a66"]], 5)
        eq_(row._mapping[t3.c["Unitéble2_b"]], 1)
        eq_(row._mapping[t3.c["\u6e2c\u8a66_self"]], 1)

    def test_reflect(self, connection):
        connection.execute(t1.insert(), {"méil": 2, "\u6e2c\u8a66": 7})
        connection.execute(t2.insert(), {"a": 2, "b": 2})
        connection.execute(
            t3.insert(),
            {
                "\u6e2c\u8a66_id": 2,
                "unitable1_\u6e2c\u8a66": 7,
                "Unitéble2_b": 2,
                "\u6e2c\u8a66_self": 2,
            },
        )

        meta = MetaData()
        tt1 = Table(t1.name, meta, autoload_with=connection)
        tt2 = Table(t2.name, meta, autoload_with=connection)
        tt3 = Table(t3.name, meta, autoload_with=connection)

        connection.execute(tt1.insert(), {"méil": 1, "\u6e2c\u8a66": 5})
        connection.execute(tt2.insert(), {"méil": 1, "\u6e2c\u8a66": 1})
        connection.execute(
            tt3.insert(),
            {
                "\u6e2c\u8a66_id": 1,
                "unitable1_\u6e2c\u8a66": 5,
                "Unitéble2_b": 1,
                "\u6e2c\u8a66_self": 1,
            },
        )

        eq_(
            connection.execute(tt1.select().order_by(desc("méil"))).fetchall(),
            [(2, 7), (1, 5)],
        )
        eq_(
            connection.execute(tt2.select().order_by(desc("méil"))).fetchall(),
            [(2, 2), (1, 1)],
        )
        eq_(
            connection.execute(
                tt3.select().order_by(desc("\u6e2c\u8a66_id"))
            ).fetchall(),
            [(2, 7, 2, 2), (1, 5, 1, 1)],
        )

    def test_repr(self):
        meta = MetaData()
        t = Table("\u6e2c\u8a66", meta, Column("\u6e2c\u8a66_id", Integer))
        eq_(
            repr(t),
            (
                "Table('測試', MetaData(), "
                "Column('測試_id', Integer(), "
                "table=<測試>), "
                "schema=None)"
            ),
        )