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//opt/hc_python/lib/python3.12/site-packages/sqlalchemy/testing/suite/test_sequence.py
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# testing/suite/test_sequence.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 .. import config from .. import fixtures from ..assertions import eq_ from ..assertions import is_true from ..config import requirements from ..provision import normalize_sequence from ..schema import Column from ..schema import Table from ... import inspect from ... import Integer from ... import MetaData from ... import Sequence from ... import String from ... import testing class SequenceTest(fixtures.TablesTest): __requires__ = ("sequences",) __backend__ = True run_create_tables = "each" @classmethod def define_tables(cls, metadata): Table( "seq_pk", metadata, Column( "id", Integer, normalize_sequence(config, Sequence("tab_id_seq")), primary_key=True, ), Column("data", String(50)), ) Table( "seq_opt_pk", metadata, Column( "id", Integer, normalize_sequence( config, Sequence("tab_id_seq", data_type=Integer, optional=True), ), primary_key=True, ), Column("data", String(50)), ) Table( "seq_no_returning", metadata, Column( "id", Integer, normalize_sequence(config, Sequence("noret_id_seq")), primary_key=True, ), Column("data", String(50)), implicit_returning=False, ) if testing.requires.schemas.enabled: Table( "seq_no_returning_sch", metadata, Column( "id", Integer, normalize_sequence( config, Sequence( "noret_sch_id_seq", schema=config.test_schema ), ), primary_key=True, ), Column("data", String(50)), implicit_returning=False, schema=config.test_schema, ) def test_insert_roundtrip(self, connection): connection.execute(self.tables.seq_pk.insert(), dict(data="some data")) self._assert_round_trip(self.tables.seq_pk, connection) def test_insert_lastrowid(self, connection): r = connection.execute( self.tables.seq_pk.insert(), dict(data="some data") ) eq_( r.inserted_primary_key, (testing.db.dialect.default_sequence_base,) ) def test_nextval_direct(self, connection): r = connection.scalar(self.tables.seq_pk.c.id.default) eq_(r, testing.db.dialect.default_sequence_base) @requirements.sequences_optional def test_optional_seq(self, connection): r = connection.execute( self.tables.seq_opt_pk.insert(), dict(data="some data") ) eq_(r.inserted_primary_key, (1,)) def _assert_round_trip(self, table, conn): row = conn.execute(table.select()).first() eq_(row, (testing.db.dialect.default_sequence_base, "some data")) def test_insert_roundtrip_no_implicit_returning(self, connection): connection.execute( self.tables.seq_no_returning.insert(), dict(data="some data") ) self._assert_round_trip(self.tables.seq_no_returning, connection) @testing.combinations((True,), (False,), argnames="implicit_returning") @testing.requires.schemas def test_insert_roundtrip_translate(self, connection, implicit_returning): seq_no_returning = Table( "seq_no_returning_sch", MetaData(), Column( "id", Integer, normalize_sequence( config, Sequence("noret_sch_id_seq", schema="alt_schema") ), primary_key=True, ), Column("data", String(50)), implicit_returning=implicit_returning, schema="alt_schema", ) connection = connection.execution_options( schema_translate_map={"alt_schema": config.test_schema} ) connection.execute(seq_no_returning.insert(), dict(data="some data")) self._assert_round_trip(seq_no_returning, connection) @testing.requires.schemas def test_nextval_direct_schema_translate(self, connection): seq = normalize_sequence( config, Sequence("noret_sch_id_seq", schema="alt_schema") ) connection = connection.execution_options( schema_translate_map={"alt_schema": config.test_schema} ) r = connection.scalar(seq) eq_(r, testing.db.dialect.default_sequence_base) class SequenceCompilerTest(testing.AssertsCompiledSQL, fixtures.TestBase): __requires__ = ("sequences",) __backend__ = True def test_literal_binds_inline_compile(self, connection): table = Table( "x", MetaData(), Column( "y", Integer, normalize_sequence(config, Sequence("y_seq")) ), Column("q", Integer), ) stmt = table.insert().values(q=5) seq_nextval = connection.dialect.statement_compiler( statement=None, dialect=connection.dialect ).visit_sequence(normalize_sequence(config, Sequence("y_seq"))) self.assert_compile( stmt, "INSERT INTO x (y, q) VALUES (%s, 5)" % (seq_nextval,), literal_binds=True, dialect=connection.dialect, ) class HasSequenceTest(fixtures.TablesTest): run_deletes = None __requires__ = ("sequences",) __backend__ = True @classmethod def define_tables(cls, metadata): normalize_sequence(config, Sequence("user_id_seq", metadata=metadata)) normalize_sequence( config, Sequence( "other_seq", metadata=metadata, nomaxvalue=True, nominvalue=True, ), ) if testing.requires.schemas.enabled: normalize_sequence( config, Sequence( "user_id_seq", schema=config.test_schema, metadata=metadata ), ) normalize_sequence( config, Sequence( "schema_seq", schema=config.test_schema, metadata=metadata ), ) Table( "user_id_table", metadata, Column("id", Integer, primary_key=True), ) def test_has_sequence(self, connection): eq_(inspect(connection).has_sequence("user_id_seq"), True) def test_has_sequence_cache(self, connection, metadata): insp = inspect(connection) eq_(insp.has_sequence("user_id_seq"), True) ss = normalize_sequence(config, Sequence("new_seq", metadata=metadata)) eq_(insp.has_sequence("new_seq"), False) ss.create(connection) try: eq_(insp.has_sequence("new_seq"), False) insp.clear_cache() eq_(insp.has_sequence("new_seq"), True) finally: ss.drop(connection) def test_has_sequence_other_object(self, connection): eq_(inspect(connection).has_sequence("user_id_table"), False) @testing.requires.schemas def test_has_sequence_schema(self, connection): eq_( inspect(connection).has_sequence( "user_id_seq", schema=config.test_schema ), True, ) def test_has_sequence_neg(self, connection): eq_(inspect(connection).has_sequence("some_sequence"), False) @testing.requires.schemas def test_has_sequence_schemas_neg(self, connection): eq_( inspect(connection).has_sequence( "some_sequence", schema=config.test_schema ), False, ) @testing.requires.schemas def test_has_sequence_default_not_in_remote(self, connection): eq_( inspect(connection).has_sequence( "other_sequence", schema=config.test_schema ), False, ) @testing.requires.schemas def test_has_sequence_remote_not_in_default(self, connection): eq_(inspect(connection).has_sequence("schema_seq"), False) def test_get_sequence_names(self, connection): exp = {"other_seq", "user_id_seq"} res = set(inspect(connection).get_sequence_names()) is_true(res.intersection(exp) == exp) is_true("schema_seq" not in res) @testing.requires.schemas def test_get_sequence_names_no_sequence_schema(self, connection): eq_( inspect(connection).get_sequence_names( schema=config.test_schema_2 ), [], ) @testing.requires.schemas def test_get_sequence_names_sequences_schema(self, connection): eq_( sorted( inspect(connection).get_sequence_names( schema=config.test_schema ) ), ["schema_seq", "user_id_seq"], ) class HasSequenceTestEmpty(fixtures.TestBase): __requires__ = ("sequences",) __backend__ = True def test_get_sequence_names_no_sequence(self, connection): eq_( inspect(connection).get_sequence_names(), [], )
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