import operator import unicodedata import sqlalchemy as sa from sqlalchemy import schema, events, event, inspect from sqlalchemy import MetaData, Integer, String from sqlalchemy.testing import (ComparesTables, engines, AssertsCompiledSQL, fixtures, skip) from sqlalchemy.testing.schema import Table, Column from sqlalchemy.testing import eq_, assert_raises, assert_raises_message from sqlalchemy import testing from sqlalchemy.util import ue metadata, users = None, None class ReflectionTest(fixtures.TestBase, ComparesTables): __backend__ = True @testing.exclude('mssql', '<', (10, 0, 0), 'Date is only supported on MSSQL 2008+') @testing.exclude('mysql', '<', (4, 1, 1), 'early types are squirrely') @testing.provide_metadata def test_basic_reflection(self): meta = self.metadata users = Table('engine_users', meta, Column('user_id', sa.INT, primary_key=True), Column('user_name', sa.VARCHAR(20), nullable=False), Column('test1', sa.CHAR(5), nullable=False), Column('test2', sa.Float(5), nullable=False), Column('test3', sa.Text), Column('test4', sa.Numeric(10, 2), nullable=False), Column('test5', sa.Date), Column('parent_user_id', sa.Integer, sa.ForeignKey('engine_users.user_id')), Column('test6', sa.Date, nullable=False), Column('test7', sa.Text), Column('test8', sa.LargeBinary), Column('test_passivedefault2', sa.Integer, server_default='5'), Column('test9', sa.LargeBinary(100)), Column('test10', sa.Numeric(10, 2)), test_needs_fk=True, ) addresses = Table( 'engine_email_addresses', meta, Column('address_id', sa.Integer, primary_key=True), Column('remote_user_id', sa.Integer, sa.ForeignKey(users.c.user_id)), Column('email_address', sa.String(20)), test_needs_fk=True, ) meta.create_all() meta2 = MetaData() reflected_users = Table('engine_users', meta2, autoload=True, autoload_with=testing.db) reflected_addresses = Table('engine_email_addresses', meta2, autoload=True, autoload_with=testing.db) self.assert_tables_equal(users, reflected_users) self.assert_tables_equal(addresses, reflected_addresses) @testing.provide_metadata def test_autoload_with_imply_autoload(self,): meta = self.metadata t = Table( 't', meta, Column('id', sa.Integer, primary_key=True), Column('x', sa.String(20)), Column('y', sa.Integer)) meta.create_all() meta2 = MetaData() reflected_t = Table('t', meta2, autoload_with=testing.db) self.assert_tables_equal(t, reflected_t) @testing.provide_metadata def test_two_foreign_keys(self): meta = self.metadata Table( 't1', meta, Column('id', sa.Integer, primary_key=True), Column('t2id', sa.Integer, sa.ForeignKey('t2.id')), Column('t3id', sa.Integer, sa.ForeignKey('t3.id')), test_needs_fk=True, ) Table('t2', meta, Column('id', sa.Integer, primary_key=True), test_needs_fk=True) Table('t3', meta, Column('id', sa.Integer, primary_key=True), test_needs_fk=True) meta.create_all() meta2 = MetaData() t1r, t2r, t3r = [Table(x, meta2, autoload=True, autoload_with=testing.db) for x in ('t1', 't2', 't3')] assert t1r.c.t2id.references(t2r.c.id) assert t1r.c.t3id.references(t3r.c.id) def test_nonexistent(self): meta = MetaData(testing.db) assert_raises(sa.exc.NoSuchTableError, Table, 'nonexistent', meta, autoload=True) assert 'nonexistent' not in meta.tables @testing.provide_metadata def test_include_columns(self): meta = self.metadata foo = Table('foo', meta, *[Column(n, sa.String(30)) for n in ['a', 'b', 'c', 'd', 'e', 'f']]) meta.create_all() meta2 = MetaData(testing.db) foo = Table('foo', meta2, autoload=True, include_columns=['b', 'f', 'e']) # test that cols come back in original order eq_([c.name for c in foo.c], ['b', 'e', 'f']) for c in ('b', 'f', 'e'): assert c in foo.c for c in ('a', 'c', 'd'): assert c not in foo.c # test against a table which is already reflected meta3 = MetaData(testing.db) foo = Table('foo', meta3, autoload=True) foo = Table('foo', meta3, include_columns=['b', 'f', 'e'], extend_existing=True) eq_([c.name for c in foo.c], ['b', 'e', 'f']) for c in ('b', 'f', 'e'): assert c in foo.c for c in ('a', 'c', 'd'): assert c not in foo.c @testing.provide_metadata def test_extend_existing(self): meta = self.metadata Table('t', meta, Column('id', Integer, primary_key=True), Column('x', Integer), Column('y', Integer), Column('z', Integer, server_default="5"), ) meta.create_all() m2 = MetaData() old_z = Column('z', String, primary_key=True) old_y = Column('y', String) old_q = Column('q', Integer) t2 = Table('t', m2, old_z, old_q) eq_(t2.primary_key.columns, (t2.c.z, )) t2 = Table('t', m2, old_y, extend_existing=True, autoload=True, autoload_with=testing.db) eq_( set(t2.columns.keys()), set(['x', 'y', 'z', 'q', 'id']) ) eq_(t2.primary_key.columns, (t2.c.id, )) assert t2.c.z is not old_z assert t2.c.y is old_y assert t2.c.z.type._type_affinity is Integer assert t2.c.q is old_q m3 = MetaData() t3 = Table('t', m3, Column('z', Integer)) t3 = Table('t', m3, extend_existing=False, autoload=True, autoload_with=testing.db) eq_( set(t3.columns.keys()), set(['z']) ) m4 = MetaData() old_z = Column('z', String, primary_key=True) old_y = Column('y', String) old_q = Column('q', Integer) t4 = Table('t', m4, old_z, old_q) eq_(t4.primary_key.columns, (t4.c.z, )) t4 = Table('t', m4, old_y, extend_existing=True, autoload=True, autoload_replace=False, autoload_with=testing.db) eq_( set(t4.columns.keys()), set(['x', 'y', 'z', 'q', 'id']) ) eq_(t4.primary_key.columns, (t4.c.id, )) assert t4.c.z is old_z assert t4.c.y is old_y assert t4.c.z.type._type_affinity is String assert t4.c.q is old_q @testing.emits_warning(r".*omitted columns") @testing.provide_metadata def test_include_columns_indexes(self): m = self.metadata t1 = Table('t1', m, Column('a', sa.Integer), Column('b', sa.Integer)) sa.Index('foobar', t1.c.a, t1.c.b) sa.Index('bat', t1.c.a) m.create_all() m2 = MetaData(testing.db) t2 = Table('t1', m2, autoload=True) assert len(t2.indexes) == 2 m2 = MetaData(testing.db) t2 = Table('t1', m2, autoload=True, include_columns=['a']) assert len(t2.indexes) == 1 m2 = MetaData(testing.db) t2 = Table('t1', m2, autoload=True, include_columns=['a', 'b']) assert len(t2.indexes) == 2 @testing.provide_metadata def test_autoload_replace_foreign_key_nonpresent(self): """test autoload_replace=False with col plus FK establishes the FK not present in the DB. """ Table('a', self.metadata, Column('id', Integer, primary_key=True)) Table('b', self.metadata, Column('id', Integer, primary_key=True), Column('a_id', Integer)) self.metadata.create_all() m2 = MetaData() b2 = Table('b', m2, Column('a_id', Integer, sa.ForeignKey('a.id'))) a2 = Table('a', m2, autoload=True, autoload_with=testing.db) b2 = Table('b', m2, extend_existing=True, autoload=True, autoload_with=testing.db, autoload_replace=False) assert b2.c.id is not None assert b2.c.a_id.references(a2.c.id) eq_(len(b2.constraints), 2) @testing.provide_metadata def test_autoload_replace_foreign_key_ispresent(self): """test autoload_replace=False with col plus FK mirroring DB-reflected FK skips the reflected FK and installs the in-python one only. """ Table('a', self.metadata, Column('id', Integer, primary_key=True)) Table('b', self.metadata, Column('id', Integer, primary_key=True), Column('a_id', Integer, sa.ForeignKey('a.id'))) self.metadata.create_all() m2 = MetaData() b2 = Table('b', m2, Column('a_id', Integer, sa.ForeignKey('a.id'))) a2 = Table('a', m2, autoload=True, autoload_with=testing.db) b2 = Table('b', m2, extend_existing=True, autoload=True, autoload_with=testing.db, autoload_replace=False) assert b2.c.id is not None assert b2.c.a_id.references(a2.c.id) eq_(len(b2.constraints), 2) @testing.provide_metadata def test_autoload_replace_foreign_key_removed(self): """test autoload_replace=False with col minus FK that's in the DB means the FK is skipped and doesn't get installed at all. """ Table('a', self.metadata, Column('id', Integer, primary_key=True)) Table('b', self.metadata, Column('id', Integer, primary_key=True), Column('a_id', Integer, sa.ForeignKey('a.id'))) self.metadata.create_all() m2 = MetaData() b2 = Table('b', m2, Column('a_id', Integer)) a2 = Table('a', m2, autoload=True, autoload_with=testing.db) b2 = Table('b', m2, extend_existing=True, autoload=True, autoload_with=testing.db, autoload_replace=False) assert b2.c.id is not None assert not b2.c.a_id.references(a2.c.id) eq_(len(b2.constraints), 1) @testing.provide_metadata def test_autoload_replace_primary_key(self): Table('a', self.metadata, Column('id', Integer)) self.metadata.create_all() m2 = MetaData() a2 = Table('a', m2, Column('id', Integer, primary_key=True)) Table('a', m2, autoload=True, autoload_with=testing.db, autoload_replace=False, extend_existing=True) eq_(list(a2.primary_key), [a2.c.id]) def test_autoload_replace_arg(self): Table('t', MetaData(), autoload_replace=False) @testing.provide_metadata def test_autoincrement_col(self): """test that 'autoincrement' is reflected according to sqla's policy. Don't mark this test as unsupported for any backend ! (technically it fails with MySQL InnoDB since "id" comes before "id2") """ meta = self.metadata Table('test', meta, Column('id', sa.Integer, primary_key=True), Column('data', sa.String(50)), mysql_engine='MyISAM' ) Table('test2', meta, Column('id', sa.Integer, sa.ForeignKey('test.id'), primary_key=True), Column('id2', sa.Integer, primary_key=True), Column('data', sa.String(50)), mysql_engine='MyISAM' ) meta.create_all() m2 = MetaData(testing.db) t1a = Table('test', m2, autoload=True) assert t1a._autoincrement_column is t1a.c.id t2a = Table('test2', m2, autoload=True) assert t2a._autoincrement_column is t2a.c.id2 @skip('sqlite') @testing.provide_metadata def test_unknown_types(self): """Test the handling of unknown types for the given dialect. sqlite is skipped because it has special rules for unknown types using 'affinity types' - this feature is tested in that dialect's test spec. """ meta = self.metadata t = Table("test", meta, Column('foo', sa.DateTime)) ischema_names = testing.db.dialect.ischema_names t.create() testing.db.dialect.ischema_names = {} try: m2 = MetaData(testing.db) assert_raises(sa.exc.SAWarning, Table, "test", m2, autoload=True) @testing.emits_warning('Did not recognize type') def warns(): m3 = MetaData(testing.db) t3 = Table("test", m3, autoload=True) assert t3.c.foo.type.__class__ == sa.types.NullType finally: testing.db.dialect.ischema_names = ischema_names @testing.provide_metadata def test_basic_override(self): meta = self.metadata table = Table( 'override_test', meta, Column('col1', sa.Integer, primary_key=True), Column('col2', sa.String(20)), Column('col3', sa.Numeric) ) table.create() meta2 = MetaData(testing.db) table = Table( 'override_test', meta2, Column('col2', sa.Unicode()), Column('col4', sa.String(30)), autoload=True) self.assert_(isinstance(table.c.col1.type, sa.Integer)) self.assert_(isinstance(table.c.col2.type, sa.Unicode)) self.assert_(isinstance(table.c.col4.type, sa.String)) @testing.provide_metadata def test_override_upgrade_pk_flag(self): meta = self.metadata table = Table( 'override_test', meta, Column('col1', sa.Integer), Column('col2', sa.String(20)), Column('col3', sa.Numeric) ) table.create() meta2 = MetaData(testing.db) table = Table( 'override_test', meta2, Column('col1', sa.Integer, primary_key=True), autoload=True) eq_(list(table.primary_key), [table.c.col1]) eq_(table.c.col1.primary_key, True) @testing.provide_metadata def test_override_pkfk(self): """test that you can override columns which contain foreign keys to other reflected tables, where the foreign key column is also a primary key column""" meta = self.metadata Table('users', meta, Column('id', sa.Integer, primary_key=True), Column('name', sa.String(30))) Table('addresses', meta, Column('id', sa.Integer, primary_key=True), Column('street', sa.String(30))) meta.create_all() meta2 = MetaData(testing.db) a2 = Table('addresses', meta2, Column('id', sa.Integer, sa.ForeignKey('users.id'), primary_key=True), autoload=True) u2 = Table('users', meta2, autoload=True) assert list(a2.primary_key) == [a2.c.id] assert list(u2.primary_key) == [u2.c.id] assert u2.join(a2).onclause.compare(u2.c.id == a2.c.id) meta3 = MetaData(testing.db) u3 = Table('users', meta3, autoload=True) a3 = Table('addresses', meta3, Column('id', sa.Integer, sa.ForeignKey('users.id'), primary_key=True), autoload=True) assert list(a3.primary_key) == [a3.c.id] assert list(u3.primary_key) == [u3.c.id] assert u3.join(a3).onclause.compare(u3.c.id == a3.c.id) @testing.provide_metadata def test_override_nonexistent_fk(self): """test that you can override columns and create new foreign keys to other reflected tables which have no foreign keys. this is common with MySQL MyISAM tables.""" meta = self.metadata Table('users', meta, Column('id', sa.Integer, primary_key=True), Column('name', sa.String(30))) Table('addresses', meta, Column('id', sa.Integer, primary_key=True), Column('street', sa.String(30)), Column('user_id', sa.Integer)) meta.create_all() meta2 = MetaData(testing.db) a2 = Table('addresses', meta2, Column('user_id', sa.Integer, sa.ForeignKey('users.id')), autoload=True) u2 = Table('users', meta2, autoload=True) assert len(a2.c.user_id.foreign_keys) == 1 assert len(a2.foreign_keys) == 1 assert [c.parent for c in a2.foreign_keys] == [a2.c.user_id] assert [c.parent for c in a2.c.user_id.foreign_keys] \ == [a2.c.user_id] assert list(a2.c.user_id.foreign_keys)[0].parent \ is a2.c.user_id assert u2.join(a2).onclause.compare(u2.c.id == a2.c.user_id) meta3 = MetaData(testing.db) u3 = Table('users', meta3, autoload=True) a3 = Table('addresses', meta3, Column('user_id', sa.Integer, sa.ForeignKey('users.id')), autoload=True) assert u3.join(a3).onclause.compare(u3.c.id == a3.c.user_id) meta4 = MetaData(testing.db) u4 = Table('users', meta4, Column('id', sa.Integer, key='u_id', primary_key=True), autoload=True) a4 = Table( 'addresses', meta4, Column('id', sa.Integer, key='street', primary_key=True), Column('street', sa.String(30), key='user_id'), Column('user_id', sa.Integer, sa.ForeignKey('users.u_id' ), key='id'), autoload=True, ) assert u4.join(a4).onclause.compare(u4.c.u_id == a4.c.id) assert list(u4.primary_key) == [u4.c.u_id] assert len(u4.columns) == 2 assert len(u4.constraints) == 1 assert len(a4.columns) == 3 assert len(a4.constraints) == 2 @testing.provide_metadata def test_override_composite_fk(self): """Test double-remove of composite foreign key, when replaced.""" metadata = self.metadata Table('a', metadata, Column('x', sa.Integer, primary_key=True), Column('y', sa.Integer, primary_key=True), ) Table('b', metadata, Column('x', sa.Integer, primary_key=True), Column('y', sa.Integer, primary_key=True), sa.ForeignKeyConstraint(['x', 'y'], ['a.x', 'a.y']) ) metadata.create_all() meta2 = MetaData() c1 = Column('x', sa.Integer, primary_key=True) c2 = Column('y', sa.Integer, primary_key=True) f1 = sa.ForeignKeyConstraint(['x', 'y'], ['a.x', 'a.y']) b1 = Table('b', meta2, c1, c2, f1, autoload=True, autoload_with=testing.db ) assert b1.c.x is c1 assert b1.c.y is c2 assert f1 in b1.constraints assert len(b1.constraints) == 2 @testing.provide_metadata def test_override_keys(self): """test that columns can be overridden with a 'key', and that ForeignKey targeting during reflection still works.""" meta = self.metadata Table('a', meta, Column('x', sa.Integer, primary_key=True), Column('z', sa.Integer), test_needs_fk=True ) Table('b', meta, Column('y', sa.Integer, sa.ForeignKey('a.x')), test_needs_fk=True ) meta.create_all() m2 = MetaData(testing.db) a2 = Table('a', m2, Column('x', sa.Integer, primary_key=True, key='x1'), autoload=True) b2 = Table('b', m2, autoload=True) assert a2.join(b2).onclause.compare(a2.c.x1 == b2.c.y) assert b2.c.y.references(a2.c.x1) @testing.provide_metadata def test_nonreflected_fk_raises(self): """test that a NoReferencedColumnError is raised when reflecting a table with an FK to another table which has not included the target column in its reflection. """ meta = self.metadata Table('a', meta, Column('x', sa.Integer, primary_key=True), Column('z', sa.Integer), test_needs_fk=True ) Table('b', meta, Column('y', sa.Integer, sa.ForeignKey('a.x')), test_needs_fk=True ) meta.create_all() m2 = MetaData(testing.db) a2 = Table('a', m2, include_columns=['z'], autoload=True) b2 = Table('b', m2, autoload=True) assert_raises(sa.exc.NoReferencedColumnError, a2.join, b2) @testing.exclude('mysql', '<', (4, 1, 1), 'innodb funkiness') @testing.provide_metadata def test_override_existing_fk(self): """test that you can override columns and specify new foreign keys to other reflected tables, on columns which *do* already have that foreign key, and that the FK is not duped. """ meta = self.metadata Table('users', meta, Column('id', sa.Integer, primary_key=True), Column('name', sa.String(30)), test_needs_fk=True) Table('addresses', meta, Column('id', sa.Integer, primary_key=True), Column('user_id', sa.Integer, sa.ForeignKey('users.id')), test_needs_fk=True) meta.create_all() meta2 = MetaData(testing.db) a2 = Table('addresses', meta2, Column('user_id', sa.Integer, sa.ForeignKey('users.id')), autoload=True) u2 = Table('users', meta2, autoload=True) s = sa.select([a2]) assert s.c.user_id is not None assert len(a2.foreign_keys) == 1 assert len(a2.c.user_id.foreign_keys) == 1 assert len(a2.constraints) == 2 assert [c.parent for c in a2.foreign_keys] == [a2.c.user_id] assert [c.parent for c in a2.c.user_id.foreign_keys] \ == [a2.c.user_id] assert list(a2.c.user_id.foreign_keys)[0].parent \ is a2.c.user_id assert u2.join(a2).onclause.compare(u2.c.id == a2.c.user_id) meta2 = MetaData(testing.db) u2 = Table('users', meta2, Column('id', sa.Integer, primary_key=True), autoload=True) a2 = Table('addresses', meta2, Column('id', sa.Integer, primary_key=True), Column('user_id', sa.Integer, sa.ForeignKey('users.id')), autoload=True) s = sa.select([a2]) assert s.c.user_id is not None assert len(a2.foreign_keys) == 1 assert len(a2.c.user_id.foreign_keys) == 1 assert len(a2.constraints) == 2 assert [c.parent for c in a2.foreign_keys] == [a2.c.user_id] assert [c.parent for c in a2.c.user_id.foreign_keys] \ == [a2.c.user_id] assert list(a2.c.user_id.foreign_keys)[0].parent \ is a2.c.user_id assert u2.join(a2).onclause.compare(u2.c.id == a2.c.user_id) @testing.only_on(['postgresql', 'mysql']) @testing.provide_metadata def test_fk_options(self): """test that foreign key reflection includes options (on backends with {dialect}.get_foreign_keys() support)""" if testing.against('postgresql'): test_attrs = ('match', 'onupdate', 'ondelete', 'deferrable', 'initially') addresses_user_id_fkey = sa.ForeignKey( # Each option is specifically not a Postgres default, or # it won't be returned by PG's inspection 'users.id', name='addresses_user_id_fkey', match='FULL', onupdate='RESTRICT', ondelete='RESTRICT', deferrable=True, initially='DEFERRED' ) elif testing.against('mysql'): # MATCH, DEFERRABLE, and INITIALLY cannot be defined for MySQL # ON UPDATE and ON DELETE have defaults of RESTRICT, which are # elided by MySQL's inspection addresses_user_id_fkey = sa.ForeignKey( 'users.id', name='addresses_user_id_fkey', onupdate='CASCADE', ondelete='CASCADE' ) test_attrs = ('onupdate', 'ondelete') meta = self.metadata Table('users', meta, Column('id', sa.Integer, primary_key=True), Column('name', sa.String(30)), test_needs_fk=True) Table('addresses', meta, Column('id', sa.Integer, primary_key=True), Column('user_id', sa.Integer, addresses_user_id_fkey), test_needs_fk=True) meta.create_all() meta2 = MetaData() meta2.reflect(testing.db) for fk in meta2.tables['addresses'].foreign_keys: ref = addresses_user_id_fkey for attr in test_attrs: eq_(getattr(fk, attr), getattr(ref, attr)) def test_pks_not_uniques(self): """test that primary key reflection not tripped up by unique indexes""" testing.db.execute(""" CREATE TABLE book ( id INTEGER NOT NULL, title VARCHAR(100) NOT NULL, series INTEGER, series_id INTEGER, UNIQUE(series, series_id), PRIMARY KEY(id) )""") try: metadata = MetaData(bind=testing.db) book = Table('book', metadata, autoload=True) assert book.primary_key.contains_column(book.c.id) assert not book.primary_key.contains_column(book.c.series) assert len(book.primary_key) == 1 finally: testing.db.execute("drop table book") def test_fk_error(self): metadata = MetaData(testing.db) Table('slots', metadata, Column('slot_id', sa.Integer, primary_key=True), Column('pkg_id', sa.Integer, sa.ForeignKey('pkgs.pkg_id')), Column('slot', sa.String(128)), ) assert_raises_message( sa.exc.InvalidRequestError, "Foreign key associated with column 'slots.pkg_id' " "could not find table 'pkgs' with which to generate " "a foreign key to target column 'pkg_id'", metadata.create_all) def test_composite_pks(self): """test reflection of a composite primary key""" testing.db.execute(""" CREATE TABLE book ( id INTEGER NOT NULL, isbn VARCHAR(50) NOT NULL, title VARCHAR(100) NOT NULL, series INTEGER NOT NULL, series_id INTEGER NOT NULL, UNIQUE(series, series_id), PRIMARY KEY(id, isbn) )""") try: metadata = MetaData(bind=testing.db) book = Table('book', metadata, autoload=True) assert book.primary_key.contains_column(book.c.id) assert book.primary_key.contains_column(book.c.isbn) assert not book.primary_key.contains_column(book.c.series) assert len(book.primary_key) == 2 finally: testing.db.execute("drop table book") @testing.exclude('mysql', '<', (4, 1, 1), 'innodb funkiness') @testing.provide_metadata def test_composite_fk(self): """test reflection of composite foreign keys""" meta = self.metadata multi = Table( 'multi', meta, Column('multi_id', sa.Integer, primary_key=True), Column('multi_rev', sa.Integer, primary_key=True), Column('multi_hoho', sa.Integer, primary_key=True), Column('name', sa.String(50), nullable=False), Column('val', sa.String(100)), test_needs_fk=True, ) multi2 = Table('multi2', meta, Column('id', sa.Integer, primary_key=True), Column('foo', sa.Integer), Column('bar', sa.Integer), Column('lala', sa.Integer), Column('data', sa.String(50)), sa.ForeignKeyConstraint(['foo', 'bar', 'lala'], ['multi.multi_id', 'multi.multi_rev', 'multi.multi_hoho' ]), test_needs_fk=True, ) meta.create_all() meta2 = MetaData() table = Table('multi', meta2, autoload=True, autoload_with=testing.db) table2 = Table('multi2', meta2, autoload=True, autoload_with=testing.db) self.assert_tables_equal(multi, table) self.assert_tables_equal(multi2, table2) j = sa.join(table, table2) self.assert_(sa.and_(table.c.multi_id == table2.c.foo, table.c.multi_rev == table2.c.bar, table.c.multi_hoho == table2.c.lala).compare(j.onclause)) @testing.crashes('oracle', 'FIXME: unknown, confirm not fails_on') @testing.requires.check_constraints @testing.provide_metadata def test_reserved(self): # check a table that uses a SQL reserved name doesn't cause an # error meta = self.metadata table_a = Table('select', meta, Column('not', sa.Integer, primary_key=True), Column('from', sa.String(12), nullable=False), sa.UniqueConstraint('from', name='when')) sa.Index('where', table_a.c['from']) # There's currently no way to calculate identifier case # normalization in isolation, so... if testing.against('firebird', 'oracle'): check_col = 'TRUE' else: check_col = 'true' quoter = meta.bind.dialect.identifier_preparer.quote_identifier Table('false', meta, Column('create', sa.Integer, primary_key=True), Column('true', sa.Integer, sa.ForeignKey('select.not')), sa.CheckConstraint('%s <> 1' % quoter(check_col), name='limit') ) table_c = Table('is', meta, Column('or', sa.Integer, nullable=False, primary_key=True), Column('join', sa.Integer, nullable=False, primary_key=True), sa.PrimaryKeyConstraint('or', 'join', name='to') ) index_c = sa.Index('else', table_c.c.join) meta.create_all() index_c.drop() meta2 = MetaData(testing.db) Table('select', meta2, autoload=True) Table('false', meta2, autoload=True) Table('is', meta2, autoload=True) @testing.provide_metadata def _test_reflect_uses_bind(self, fn): from sqlalchemy.pool import AssertionPool e = engines.testing_engine(options={"poolclass": AssertionPool}) fn(e) @testing.uses_deprecated() def test_reflect_uses_bind_constructor_conn(self): self._test_reflect_uses_bind(lambda e: MetaData(e.connect(), reflect=True)) @testing.uses_deprecated() def test_reflect_uses_bind_constructor_engine(self): self._test_reflect_uses_bind(lambda e: MetaData(e, reflect=True)) def test_reflect_uses_bind_constructor_conn_reflect(self): self._test_reflect_uses_bind(lambda e: MetaData(e.connect()).reflect()) def test_reflect_uses_bind_constructor_engine_reflect(self): self._test_reflect_uses_bind(lambda e: MetaData(e).reflect()) def test_reflect_uses_bind_conn_reflect(self): self._test_reflect_uses_bind(lambda e: MetaData().reflect(e.connect())) def test_reflect_uses_bind_engine_reflect(self): self._test_reflect_uses_bind(lambda e: MetaData().reflect(e)) @testing.provide_metadata def test_reflect_all(self): existing = testing.db.table_names() names = ['rt_%s' % name for name in ('a', 'b', 'c', 'd', 'e')] nameset = set(names) for name in names: # be sure our starting environment is sane self.assert_(name not in existing) self.assert_('rt_f' not in existing) baseline = self.metadata for name in names: Table(name, baseline, Column('id', sa.Integer, primary_key=True)) baseline.create_all() m1 = MetaData(testing.db) self.assert_(not m1.tables) m1.reflect() self.assert_(nameset.issubset(set(m1.tables.keys()))) m2 = MetaData() m2.reflect(testing.db, only=['rt_a', 'rt_b']) self.assert_(set(m2.tables.keys()) == set(['rt_a', 'rt_b'])) m3 = MetaData() c = testing.db.connect() m3.reflect(bind=c, only=lambda name, meta: name == 'rt_c') self.assert_(set(m3.tables.keys()) == set(['rt_c'])) m4 = MetaData(testing.db) try: m4.reflect(only=['rt_a', 'rt_f']) self.assert_(False) except sa.exc.InvalidRequestError as e: self.assert_(e.args[0].endswith('(rt_f)')) m5 = MetaData(testing.db) m5.reflect(only=[]) self.assert_(not m5.tables) m6 = MetaData(testing.db) m6.reflect(only=lambda n, m: False) self.assert_(not m6.tables) m7 = MetaData(testing.db) m7.reflect() self.assert_(nameset.issubset(set(m7.tables.keys()))) m8 = MetaData() assert_raises( sa.exc.UnboundExecutionError, m8.reflect ) m8_e1 = MetaData(testing.db) rt_c = Table('rt_c', m8_e1) m8_e1.reflect(extend_existing=True) eq_(set(m8_e1.tables.keys()), set(names)) eq_(rt_c.c.keys(), ['id']) m8_e2 = MetaData(testing.db) rt_c = Table('rt_c', m8_e2) m8_e2.reflect(extend_existing=True, only=['rt_a', 'rt_c']) eq_(set(m8_e2.tables.keys()), set(['rt_a', 'rt_c'])) eq_(rt_c.c.keys(), ['id']) if existing: print("Other tables present in database, skipping some checks.") else: baseline.drop_all() m9 = MetaData(testing.db) m9.reflect() self.assert_(not m9.tables) def test_reflect_all_conn_closing(self): m1 = MetaData() c = testing.db.connect() m1.reflect(bind=c) assert not c.closed def test_inspector_conn_closing(self): c = testing.db.connect() inspect(c) assert not c.closed @testing.provide_metadata def test_index_reflection(self): m1 = self.metadata t1 = Table('party', m1, Column('id', sa.Integer, nullable=False), Column('name', sa.String(20), index=True) ) sa.Index('idx1', t1.c.id, unique=True) sa.Index('idx2', t1.c.name, t1.c.id, unique=False) m1.create_all() m2 = MetaData(testing.db) t2 = Table('party', m2, autoload=True) assert len(t2.indexes) == 3 # Make sure indexes are in the order we expect them in tmp = [(idx.name, idx) for idx in t2.indexes] tmp.sort() r1, r2, r3 = [idx[1] for idx in tmp] assert r1.name == 'idx1' assert r2.name == 'idx2' assert r1.unique == True assert r2.unique == False assert r3.unique == False assert set([t2.c.id]) == set(r1.columns) assert set([t2.c.name, t2.c.id]) == set(r2.columns) assert set([t2.c.name]) == set(r3.columns) @testing.provide_metadata def test_index_reflection_cols_busted(self): t = Table('x', self.metadata, Column('a', Integer), Column('b', Integer)) sa.Index('x_ix', t.c.a, t.c.b) self.metadata.create_all() def mock_get_columns(self, connection, table_name, **kw): return [ {"name": "b", "type": Integer, "primary_key": False} ] with testing.mock.patch.object( testing.db.dialect, "get_columns", mock_get_columns): m = MetaData() with testing.expect_warnings( "index key 'a' was not located in columns"): t = Table('x', m, autoload=True, autoload_with=testing.db) eq_(list(t.indexes)[0].columns, [t.c.b]) @testing.requires.views @testing.provide_metadata def test_views(self): metadata = self.metadata users, addresses, dingalings = createTables(metadata) try: metadata.create_all() _create_views(metadata.bind, None) m2 = MetaData(testing.db) users_v = Table("users_v", m2, autoload=True) addresses_v = Table("email_addresses_v", m2, autoload=True) for c1, c2 in zip(users_v.c, users.c): eq_(c1.name, c2.name) self.assert_types_base(c1, c2) for c1, c2 in zip(addresses_v.c, addresses.c): eq_(c1.name, c2.name) self.assert_types_base(c1, c2) finally: _drop_views(metadata.bind) @testing.requires.views @testing.provide_metadata def test_reflect_all_with_views(self): metadata = self.metadata users, addresses, dingalings = createTables(metadata, None) try: metadata.create_all() _create_views(metadata.bind, None) m2 = MetaData(testing.db) m2.reflect(views=False) eq_( set(m2.tables), set(['users', 'email_addresses', 'dingalings']) ) m2 = MetaData(testing.db) m2.reflect(views=True) eq_( set(m2.tables), set(['email_addresses_v', 'users_v', 'users', 'dingalings', 'email_addresses']) ) finally: _drop_views(metadata.bind) class CreateDropTest(fixtures.TestBase): __backend__ = True @classmethod def setup_class(cls): global metadata, users metadata = MetaData() users = Table('users', metadata, Column('user_id', sa.Integer, sa.Sequence('user_id_seq', optional=True), primary_key=True), Column('user_name', sa.String(40))) Table('email_addresses', metadata, Column('address_id', sa.Integer, sa.Sequence('address_id_seq', optional=True), primary_key=True), Column('user_id', sa.Integer, sa.ForeignKey(users.c.user_id)), Column('email_address', sa.String(40))) Table( 'orders', metadata, Column('order_id', sa.Integer, sa.Sequence('order_id_seq', optional=True), primary_key=True), Column('user_id', sa.Integer, sa.ForeignKey(users.c.user_id)), Column('description', sa.String(50)), Column('isopen', sa.Integer), ) Table('items', metadata, Column('item_id', sa.INT, sa.Sequence('items_id_seq', optional=True), primary_key=True), Column('order_id', sa.INT, sa.ForeignKey('orders')), Column('item_name', sa.VARCHAR(50))) def test_sorter(self): tables = metadata.sorted_tables table_names = [t.name for t in tables] ua = [n for n in table_names if n in ('users', 'email_addresses')] oi = [n for n in table_names if n in ('orders', 'items')] eq_(ua, ['users', 'email_addresses']) eq_(oi, ['orders', 'items']) def test_checkfirst(self): try: assert not users.exists(testing.db) users.create(bind=testing.db) assert users.exists(testing.db) users.create(bind=testing.db, checkfirst=True) users.drop(bind=testing.db) users.drop(bind=testing.db, checkfirst=True) assert not users.exists(bind=testing.db) users.create(bind=testing.db, checkfirst=True) users.drop(bind=testing.db) finally: metadata.drop_all(bind=testing.db) def test_createdrop(self): metadata.create_all(bind=testing.db) eq_(testing.db.has_table('items'), True) eq_(testing.db.has_table('email_addresses'), True) metadata.create_all(bind=testing.db) eq_(testing.db.has_table('items'), True) metadata.drop_all(bind=testing.db) eq_(testing.db.has_table('items'), False) eq_(testing.db.has_table('email_addresses'), False) metadata.drop_all(bind=testing.db) eq_(testing.db.has_table('items'), False) def test_tablenames(self): metadata.create_all(bind=testing.db) # we only check to see if all the explicitly created tables are # there, rather than assertEqual -- the test db could have # "extra" tables if there is a misconfigured template. (*cough* # tsearch2 w/ the pg windows installer.) self.assert_(not set(metadata.tables) - set(testing.db.table_names())) metadata.drop_all(bind=testing.db) class SchemaManipulationTest(fixtures.TestBase): __backend__ = True def test_append_constraint_unique(self): meta = MetaData() users = Table('users', meta, Column('id', sa.Integer)) addresses = Table('addresses', meta, Column('id', sa.Integer), Column('user_id', sa.Integer)) fk = sa.ForeignKeyConstraint(['user_id'], [users.c.id]) addresses.append_constraint(fk) addresses.append_constraint(fk) assert len(addresses.c.user_id.foreign_keys) == 1 assert addresses.constraints == set([addresses.primary_key, fk]) class UnicodeReflectionTest(fixtures.TestBase): __backend__ = True @classmethod def setup_class(cls): cls.metadata = metadata = MetaData() no_multibyte_period = set([ ('plain', 'col_plain', 'ix_plain') ]) no_has_table = [ ( 'no_has_table_1', ue('col_Unit\u00e9ble'), ue('ix_Unit\u00e9ble') ), ( 'no_has_table_2', ue('col_\u6e2c\u8a66'), ue('ix_\u6e2c\u8a66') ), ] no_case_sensitivity = [ ( ue('\u6e2c\u8a66'), ue('col_\u6e2c\u8a66'), ue('ix_\u6e2c\u8a66') ), ( ue('unit\u00e9ble'), ue('col_unit\u00e9ble'), ue('ix_unit\u00e9ble') ), ] full = [ ( ue('Unit\u00e9ble'), ue('col_Unit\u00e9ble'), ue('ix_Unit\u00e9ble') ), ( ue('\u6e2c\u8a66'), ue('col_\u6e2c\u8a66'), ue('ix_\u6e2c\u8a66') ), ] # as you can see, our options for this kind of thing # are really limited unless you're on PG or SQLite # forget about it on these backends if not testing.requires.unicode_ddl.enabled: names = no_multibyte_period # mysql can't handle casing usually elif testing.against("mysql") and \ not testing.requires.mysql_fully_case_sensitive.enabled: names = no_multibyte_period.union(no_case_sensitivity) # mssql + pyodbc + freetds can't compare multibyte names to # information_schema.tables.table_name elif testing.against("mssql"): names = no_multibyte_period.union(no_has_table) else: names = no_multibyte_period.union(full) for tname, cname, ixname in names: t = Table(tname, metadata, Column('id', sa.Integer, sa.Sequence(cname + '_id_seq'), primary_key=True), Column(cname, Integer) ) schema.Index(ixname, t.c[cname]) metadata.create_all(testing.db) cls.names = names @classmethod def teardown_class(cls): cls.metadata.drop_all(testing.db, checkfirst=False) @testing.requires.unicode_connections def test_has_table(self): for tname, cname, ixname in self.names: assert testing.db.has_table(tname), "Can't detect name %s" % tname @testing.requires.unicode_connections def test_basic(self): # the 'convert_unicode' should not get in the way of the # reflection process. reflecttable for oracle, postgresql # (others?) expect non-unicode strings in result sets/bind # params bind = testing.db names = set([rec[0] for rec in self.names]) reflected = set(bind.table_names()) # Jython 2.5 on Java 5 lacks unicodedata.normalize if not names.issubset(reflected) and hasattr(unicodedata, 'normalize'): # Python source files in the utf-8 coding seem to # normalize literals as NFC (and the above are # explicitly NFC). Maybe this database normalizes NFD # on reflection. nfc = set([unicodedata.normalize('NFC', n) for n in names]) self.assert_(nfc == names) # Yep. But still ensure that bulk reflection and # create/drop work with either normalization. r = MetaData(bind) r.reflect() r.drop_all(checkfirst=False) r.create_all(checkfirst=False) @testing.requires.unicode_connections def test_get_names(self): inspector = inspect(testing.db) names = dict( (tname, (cname, ixname)) for tname, cname, ixname in self.names ) for tname in inspector.get_table_names(): assert tname in names eq_( [ (rec['name'], rec['column_names'][0]) for rec in inspector.get_indexes(tname) ], [(names[tname][1], names[tname][0])] ) class SchemaTest(fixtures.TestBase): __backend__ = True @testing.requires.schemas @testing.requires.cross_schema_fk_reflection def test_has_schema(self): eq_(testing.db.dialect.has_schema(testing.db, testing.config.test_schema), True) eq_(testing.db.dialect.has_schema(testing.db, 'sa_fake_schema_123'), False) @testing.requires.schemas @testing.requires.cross_schema_fk_reflection @testing.provide_metadata def test_blank_schema_arg(self): metadata = self.metadata Table('some_table', metadata, Column('id', Integer, primary_key=True), Column('sid', Integer, sa.ForeignKey('some_other_table.id')), schema=testing.config.test_schema ) Table('some_other_table', metadata, Column('id', Integer, primary_key=True), schema=None ) metadata.create_all() with testing.db.connect() as conn: meta2 = MetaData(conn, schema=testing.config.test_schema) meta2.reflect() eq_(set(meta2.tables), set( [ 'some_other_table', '%s.some_table' % testing.config.test_schema])) @testing.requires.schemas @testing.fails_on('sqlite', 'FIXME: unknown') @testing.fails_on('sybase', 'FIXME: unknown') def test_explicit_default_schema(self): engine = testing.db engine.connect().close() if testing.against('sqlite'): # Works for CREATE TABLE main.foo, SELECT FROM main.foo, etc., # but fails on: # FOREIGN KEY(col2) REFERENCES main.table1 (col1) schema = 'main' else: schema = engine.dialect.default_schema_name assert bool(schema) metadata = MetaData(engine) Table('table1', metadata, Column('col1', sa.Integer, primary_key=True), test_needs_fk=True, schema=schema) Table('table2', metadata, Column('col1', sa.Integer, primary_key=True), Column('col2', sa.Integer, sa.ForeignKey('%s.table1.col1' % schema)), test_needs_fk=True, schema=schema) try: metadata.create_all() metadata.create_all(checkfirst=True) assert len(metadata.tables) == 2 metadata.clear() Table('table1', metadata, autoload=True, schema=schema) Table('table2', metadata, autoload=True, schema=schema) assert len(metadata.tables) == 2 finally: metadata.drop_all() @testing.requires.schemas @testing.fails_on('sybase', 'FIXME: unknown') def test_explicit_default_schema_metadata(self): engine = testing.db if testing.against('sqlite'): # Works for CREATE TABLE main.foo, SELECT FROM main.foo, etc., # but fails on: # FOREIGN KEY(col2) REFERENCES main.table1 (col1) schema = 'main' else: schema = engine.dialect.default_schema_name assert bool(schema) metadata = MetaData(engine, schema=schema) Table('table1', metadata, Column('col1', sa.Integer, primary_key=True), test_needs_fk=True) Table('table2', metadata, Column('col1', sa.Integer, primary_key=True), Column('col2', sa.Integer, sa.ForeignKey('table1.col1')), test_needs_fk=True) try: metadata.create_all() metadata.create_all(checkfirst=True) assert len(metadata.tables) == 2 metadata.clear() Table('table1', metadata, autoload=True) Table('table2', metadata, autoload=True) assert len(metadata.tables) == 2 finally: metadata.drop_all() @testing.requires.schemas @testing.provide_metadata def test_metadata_reflect_schema(self): metadata = self.metadata createTables(metadata, testing.config.test_schema) metadata.create_all() m2 = MetaData(schema=testing.config.test_schema, bind=testing.db) m2.reflect() eq_( set(m2.tables), set([ '%s.dingalings' % testing.config.test_schema, '%s.users' % testing.config.test_schema, '%s.email_addresses' % testing.config.test_schema ]) ) @testing.requires.schemas @testing.requires.cross_schema_fk_reflection @testing.provide_metadata def test_reflect_all_schemas_default_overlap(self): t1 = Table('t', self.metadata, Column('id', Integer, primary_key=True)) t2 = Table('t', self.metadata, Column('id1', sa.ForeignKey('t.id')), schema=testing.config.test_schema ) self.metadata.create_all() m2 = MetaData() m2.reflect(testing.db, schema=testing.config.test_schema) m3 = MetaData() m3.reflect(testing.db) m3.reflect(testing.db, schema=testing.config.test_schema) eq_( set((t.name, t.schema) for t in m2.tables.values()), set((t.name, t.schema) for t in m3.tables.values()) ) # Tests related to engine.reflection def createTables(meta, schema=None): if schema: schema_prefix = schema + "." else: schema_prefix = "" users = Table('users', meta, Column('user_id', sa.INT, primary_key=True), Column('user_name', sa.VARCHAR(20), nullable=False), Column('test1', sa.CHAR(5), nullable=False), Column('test2', sa.Float(5), nullable=False), Column('test3', sa.Text), Column('test4', sa.Numeric(10, 2), nullable=False), Column('test5', sa.Date), Column('test5_1', sa.TIMESTAMP), Column('parent_user_id', sa.Integer, sa.ForeignKey('%susers.user_id' % schema_prefix)), Column('test6', sa.Date, nullable=False), Column('test7', sa.Text), Column('test8', sa.LargeBinary), Column('test_passivedefault2', sa.Integer, server_default='5'), Column('test9', sa.LargeBinary(100)), Column('test10', sa.Numeric(10, 2)), schema=schema, test_needs_fk=True, ) dingalings = Table("dingalings", meta, Column('dingaling_id', sa.Integer, primary_key=True), Column('address_id', sa.Integer, sa.ForeignKey( '%semail_addresses.address_id' % schema_prefix)), Column('data', sa.String(30)), schema=schema, test_needs_fk=True, ) addresses = Table('email_addresses', meta, Column('address_id', sa.Integer), Column('remote_user_id', sa.Integer, sa.ForeignKey(users.c.user_id)), Column('email_address', sa.String(20)), sa.PrimaryKeyConstraint('address_id', name='email_ad_pk'), schema=schema, test_needs_fk=True, ) return (users, addresses, dingalings) def createIndexes(con, schema=None): fullname = 'users' if schema: fullname = "%s.%s" % (schema, 'users') query = "CREATE INDEX users_t_idx ON %s (test1, test2)" % fullname con.execute(sa.sql.text(query)) @testing.requires.views def _create_views(con, schema=None): for table_name in ('users', 'email_addresses'): fullname = table_name if schema: fullname = "%s.%s" % (schema, table_name) view_name = fullname + '_v' query = "CREATE VIEW %s AS SELECT * FROM %s" % (view_name, fullname) con.execute(sa.sql.text(query)) @testing.requires.views def _drop_views(con, schema=None): for table_name in ('email_addresses', 'users'): fullname = table_name if schema: fullname = "%s.%s" % (schema, table_name) view_name = fullname + '_v' query = "DROP VIEW %s" % view_name con.execute(sa.sql.text(query)) class ReverseCasingReflectTest(fixtures.TestBase, AssertsCompiledSQL): __dialect__ = 'default' __backend__ = True @testing.requires.denormalized_names def setup(self): testing.db.execute(""" CREATE TABLE weird_casing( col1 char(20), "Col2" char(20), "col3" char(20) ) """) @testing.requires.denormalized_names def teardown(self): testing.db.execute("drop table weird_casing") @testing.requires.denormalized_names def test_direct_quoting(self): m = MetaData(testing.db) t = Table('weird_casing', m, autoload=True) self.assert_compile(t.select(), 'SELECT weird_casing.col1, ' 'weird_casing."Col2", weird_casing."col3" ' 'FROM weird_casing') class CaseSensitiveTest(fixtures.TablesTest): """Nail down case sensitive behaviors, mostly on MySQL.""" __backend__ = True @classmethod def define_tables(cls, metadata): Table('SomeTable', metadata, Column('x', Integer, primary_key=True), test_needs_fk=True ) Table('SomeOtherTable', metadata, Column('x', Integer, primary_key=True), Column('y', Integer, sa.ForeignKey("SomeTable.x")), test_needs_fk=True ) @testing.fails_if(testing.requires._has_mysql_on_windows) def test_table_names(self): x = testing.db.run_callable( testing.db.dialect.get_table_names ) assert set(["SomeTable", "SomeOtherTable"]).issubset(x) def test_reflect_exact_name(self): m = MetaData() t1 = Table("SomeTable", m, autoload=True, autoload_with=testing.db) eq_(t1.name, "SomeTable") assert t1.c.x is not None @testing.fails_if(lambda: testing.against(('mysql', '<', (5, 5))) and not testing.requires._has_mysql_fully_case_sensitive() ) def test_reflect_via_fk(self): m = MetaData() t2 = Table("SomeOtherTable", m, autoload=True, autoload_with=testing.db) eq_(t2.name, "SomeOtherTable") assert "SomeTable" in m.tables @testing.fails_if(testing.requires._has_mysql_fully_case_sensitive) @testing.fails_on_everything_except('sqlite', 'mysql', 'mssql') def test_reflect_case_insensitive(self): m = MetaData() t2 = Table("sOmEtAbLe", m, autoload=True, autoload_with=testing.db) eq_(t2.name, "sOmEtAbLe") class ColumnEventsTest(fixtures.RemovesEvents, fixtures.TestBase): __backend__ = True @classmethod def setup_class(cls): cls.metadata = MetaData() cls.to_reflect = Table( 'to_reflect', cls.metadata, Column('x', sa.Integer, primary_key=True), Column('y', sa.Integer), test_needs_fk=True ) cls.related = Table( 'related', cls.metadata, Column('q', sa.Integer, sa.ForeignKey('to_reflect.x')), test_needs_fk=True ) sa.Index("some_index", cls.to_reflect.c.y) cls.metadata.create_all(testing.db) @classmethod def teardown_class(cls): cls.metadata.drop_all(testing.db) def _do_test(self, col, update, assert_, tablename="to_reflect"): # load the actual Table class, not the test # wrapper from sqlalchemy.schema import Table m = MetaData(testing.db) def column_reflect(insp, table, column_info): if column_info['name'] == col: column_info.update(update) t = Table(tablename, m, autoload=True, listeners=[ ('column_reflect', column_reflect), ]) assert_(t) m = MetaData(testing.db) self.event_listen(Table, 'column_reflect', column_reflect) t2 = Table(tablename, m, autoload=True) assert_(t2) def test_override_key(self): def assertions(table): eq_(table.c.YXZ.name, "x") eq_(set(table.primary_key), set([table.c.YXZ])) self._do_test( "x", {"key": "YXZ"}, assertions ) def test_override_index(self): def assertions(table): idx = list(table.indexes)[0] eq_(idx.columns, [table.c.YXZ]) self._do_test( "y", {"key": "YXZ"}, assertions ) def test_override_key_fk(self): m = MetaData(testing.db) def column_reflect(insp, table, column_info): if column_info['name'] == 'q': column_info['key'] = 'qyz' elif column_info['name'] == 'x': column_info['key'] = 'xyz' to_reflect = Table("to_reflect", m, autoload=True, listeners=[ ('column_reflect', column_reflect), ]) related = Table("related", m, autoload=True, listeners=[ ('column_reflect', column_reflect), ]) assert related.c.qyz.references(to_reflect.c.xyz) def test_override_type(self): def assert_(table): assert isinstance(table.c.x.type, sa.String) self._do_test( "x", {"type": sa.String}, assert_ ) def test_override_info(self): self._do_test( "x", {"info": {"a": "b"}}, lambda table: eq_(table.c.x.info, {"a": "b"}) )