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from sqlalchemy import *
from sqlalchemy.testing import eq_
from sqlalchemy.testing import engines
from sqlalchemy.testing import fixtures
# TODO: we should probably build mock bases for
# these to share with test_reconnect, test_parseconnect
class MockDBAPI(object):
paramstyle = 'qmark'
def __init__(self):
self.log = []
def connect(self, *args, **kwargs):
return MockConnection(self)
class MockConnection(object):
def __init__(self, parent):
self.parent = parent
def cursor(self):
return MockCursor(self)
def close(self):
pass
def rollback(self):
pass
def commit(self):
pass
class MockCursor(object):
description = None
rowcount = None
def __init__(self, parent):
self.parent = parent
def execute(self, *args, **kwargs):
if kwargs.get('direct', False):
self.executedirect()
else:
self.parent.parent.log.append('execute')
def executedirect(self, *args, **kwargs):
self.parent.parent.log.append('executedirect')
def close(self):
pass
class MxODBCTest(fixtures.TestBase):
def test_native_odbc_execute(self):
t1 = Table('t1', MetaData(), Column('c1', Integer))
dbapi = MockDBAPI()
engine = engines.testing_engine('mssql+mxodbc://localhost',
options={'module': dbapi, '_initialize': False})
conn = engine.connect()
# crud: uses execute
conn.execute(t1.insert().values(c1='foo'))
conn.execute(t1.delete().where(t1.c.c1 == 'foo'))
conn.execute(t1.update().where(t1.c.c1 == 'foo').values(c1='bar'
))
# select: uses executedirect
conn.execute(t1.select())
# manual flagging
conn.execution_options(native_odbc_execute=True).\
execute(t1.select())
conn.execution_options(native_odbc_execute=False).\
execute(t1.insert().values(c1='foo'
))
eq_(dbapi.log, [
'executedirect',
'executedirect',
'executedirect',
'executedirect',
'execute',
'executedirect',
])
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