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|
from .. import fixtures, config
from ..config import requirements
from ..assertions import eq_
from ... import testing
from ... import Integer, String, Sequence, schema, MetaData
from ..schema import Table, Column
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, Sequence("tab_id_seq"), primary_key=True),
Column("data", String(50)),
)
Table(
"seq_opt_pk",
metadata,
Column(
"id",
Integer,
Sequence("tab_id_seq", optional=True),
primary_key=True,
),
Column("data", String(50)),
)
def test_insert_roundtrip(self):
config.db.execute(self.tables.seq_pk.insert(), data="some data")
self._assert_round_trip(self.tables.seq_pk, config.db)
def test_insert_lastrowid(self):
r = config.db.execute(self.tables.seq_pk.insert(), data="some data")
eq_(r.inserted_primary_key, [1])
def test_nextval_direct(self):
r = config.db.execute(self.tables.seq_pk.c.id.default)
eq_(r, 1)
@requirements.sequences_optional
def test_optional_seq(self):
r = config.db.execute(
self.tables.seq_opt_pk.insert(), data="some data"
)
eq_(r.inserted_primary_key, [1])
def _assert_round_trip(self, table, conn):
row = conn.execute(table.select()).first()
eq_(row, (1, "some data"))
class SequenceCompilerTest(testing.AssertsCompiledSQL, fixtures.TestBase):
__requires__ = ("sequences",)
__backend__ = True
def test_literal_binds_inline_compile(self):
table = Table(
"x",
MetaData(),
Column("y", Integer, Sequence("y_seq")),
Column("q", Integer),
)
stmt = table.insert().values(q=5)
seq_nextval = testing.db.dialect.statement_compiler(
statement=None, dialect=testing.db.dialect
).visit_sequence(Sequence("y_seq"))
self.assert_compile(
stmt,
"INSERT INTO x (y, q) VALUES (%s, 5)" % (seq_nextval,),
literal_binds=True,
dialect=testing.db.dialect,
)
class HasSequenceTest(fixtures.TestBase):
__requires__ = ("sequences",)
__backend__ = True
def test_has_sequence(self):
s1 = Sequence("user_id_seq")
testing.db.execute(schema.CreateSequence(s1))
try:
eq_(
testing.db.dialect.has_sequence(testing.db, "user_id_seq"),
True,
)
finally:
testing.db.execute(schema.DropSequence(s1))
@testing.requires.schemas
def test_has_sequence_schema(self):
s1 = Sequence("user_id_seq", schema=config.test_schema)
testing.db.execute(schema.CreateSequence(s1))
try:
eq_(
testing.db.dialect.has_sequence(
testing.db, "user_id_seq", schema=config.test_schema
),
True,
)
finally:
testing.db.execute(schema.DropSequence(s1))
def test_has_sequence_neg(self):
eq_(testing.db.dialect.has_sequence(testing.db, "user_id_seq"), False)
@testing.requires.schemas
def test_has_sequence_schemas_neg(self):
eq_(
testing.db.dialect.has_sequence(
testing.db, "user_id_seq", schema=config.test_schema
),
False,
)
@testing.requires.schemas
def test_has_sequence_default_not_in_remote(self):
s1 = Sequence("user_id_seq")
testing.db.execute(schema.CreateSequence(s1))
try:
eq_(
testing.db.dialect.has_sequence(
testing.db, "user_id_seq", schema=config.test_schema
),
False,
)
finally:
testing.db.execute(schema.DropSequence(s1))
@testing.requires.schemas
def test_has_sequence_remote_not_in_default(self):
s1 = Sequence("user_id_seq", schema=config.test_schema)
testing.db.execute(schema.CreateSequence(s1))
try:
eq_(
testing.db.dialect.has_sequence(testing.db, "user_id_seq"),
False,
)
finally:
testing.db.execute(schema.DropSequence(s1))
|
