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from sqlalchemy.test.testing import assert_raises, assert_raises_message
import ConfigParser
import StringIO
import sqlalchemy.engine.url as url
from sqlalchemy import create_engine, engine_from_config
import sqlalchemy as tsa
from sqlalchemy.test import TestBase
class ParseConnectTest(TestBase):
def test_rfc1738(self):
for text in (
'dbtype://username:password@hostspec:110//usr/db_file.db',
'dbtype://username:password@hostspec/database',
'dbtype://username:password@hostspec',
'dbtype://username:password@/database',
'dbtype://username@hostspec',
'dbtype://username:password@127.0.0.1:1521',
'dbtype://hostspec/database',
'dbtype://hostspec',
'dbtype://hostspec/?arg1=val1&arg2=val2',
'dbtype:///database',
'dbtype:///:memory:',
'dbtype:///foo/bar/im/a/file',
'dbtype:///E:/work/src/LEM/db/hello.db',
'dbtype:///E:/work/src/LEM/db/hello.db?foo=bar&hoho=lala',
'dbtype://',
'dbtype://username:password@/db',
'dbtype:////usr/local/mailman/lists/_xtest@example.com/members.db',
'dbtype://username:apples%2Foranges@hostspec/mydatabase',
):
u = url.make_url(text)
assert u.drivername == 'dbtype'
assert u.username == 'username' or u.username is None
assert u.password == 'password' or u.password == 'apples/oranges' or u.password is None
assert u.host == 'hostspec' or u.host == '127.0.0.1' or (not u.host)
assert str(u) == text
class CreateEngineTest(TestBase):
"""test that create_engine arguments of different types get propagated properly"""
def test_connect_query(self):
dbapi = MockDBAPI(foober='12', lala='18', fooz='somevalue')
e = create_engine(
'postgresql://scott:tiger@somehost/test?foober=12&lala=18&fooz=somevalue',
module=dbapi,
_initialize=False
)
c = e.connect()
def test_kwargs(self):
dbapi = MockDBAPI(foober=12, lala=18, hoho={'this':'dict'}, fooz='somevalue')
e = create_engine(
'postgresql://scott:tiger@somehost/test?fooz=somevalue',
connect_args={'foober':12, 'lala':18, 'hoho':{'this':'dict'}},
module=dbapi,
_initialize=False
)
c = e.connect()
def test_coerce_config(self):
raw = r"""
[prefixed]
sqlalchemy.url=postgresql://scott:tiger@somehost/test?fooz=somevalue
sqlalchemy.convert_unicode=0
sqlalchemy.echo=false
sqlalchemy.echo_pool=1
sqlalchemy.max_overflow=2
sqlalchemy.pool_recycle=50
sqlalchemy.pool_size=2
sqlalchemy.pool_threadlocal=1
sqlalchemy.pool_timeout=10
[plain]
url=postgresql://scott:tiger@somehost/test?fooz=somevalue
convert_unicode=0
echo=0
echo_pool=1
max_overflow=2
pool_recycle=50
pool_size=2
pool_threadlocal=1
pool_timeout=10
"""
ini = ConfigParser.ConfigParser()
ini.readfp(StringIO.StringIO(raw))
expected = {
'url': 'postgresql://scott:tiger@somehost/test?fooz=somevalue',
'convert_unicode': 0,
'echo': False,
'echo_pool': True,
'max_overflow': 2,
'pool_recycle': 50,
'pool_size': 2,
'pool_threadlocal': True,
'pool_timeout': 10,
}
prefixed = dict(ini.items('prefixed'))
self.assert_(tsa.engine._coerce_config(prefixed, 'sqlalchemy.') == expected)
plain = dict(ini.items('plain'))
self.assert_(tsa.engine._coerce_config(plain, '') == expected)
def test_engine_from_config(self):
dbapi = mock_dbapi
config = {
'sqlalchemy.url':'postgresql://scott:tiger@somehost/test?fooz=somevalue',
'sqlalchemy.pool_recycle':'50',
'sqlalchemy.echo':'true'
}
e = engine_from_config(config, module=dbapi, _initialize=False)
assert e.pool._recycle == 50
assert e.url == url.make_url('postgresql://scott:tiger@somehost/test?fooz=somevalue')
assert e.echo is True
def test_custom(self):
dbapi = MockDBAPI(foober=12, lala=18, hoho={'this':'dict'}, fooz='somevalue')
def connect():
return dbapi.connect(foober=12, lala=18, fooz='somevalue', hoho={'this':'dict'})
# start the postgresql dialect, but put our mock DBAPI as the module instead of psycopg
e = create_engine('postgresql://', creator=connect, module=dbapi, _initialize=False)
c = e.connect()
def test_recycle(self):
dbapi = MockDBAPI(foober=12, lala=18, hoho={'this':'dict'}, fooz='somevalue')
e = create_engine('postgresql://', pool_recycle=472, module=dbapi, _initialize=False)
assert e.pool._recycle == 472
def test_badargs(self):
assert_raises(ImportError, create_engine, "foobar://", module=mock_dbapi)
# bad arg
assert_raises(TypeError, create_engine, 'postgresql://', use_ansi=True, module=mock_dbapi)
# bad arg
assert_raises(TypeError, create_engine, 'oracle://', lala=5, use_ansi=True, module=mock_dbapi)
assert_raises(TypeError, create_engine, 'postgresql://', lala=5, module=mock_dbapi)
assert_raises(TypeError, create_engine,'sqlite://', lala=5, module=mock_sqlite_dbapi)
assert_raises(TypeError, create_engine, 'mysql+mysqldb://', use_unicode=True, module=mock_dbapi)
# sqlite uses SingletonThreadPool which doesnt have max_overflow
assert_raises(TypeError, create_engine, 'sqlite://', max_overflow=5,
module=mock_sqlite_dbapi)
try:
e = create_engine('sqlite://', connect_args={'use_unicode':True}, convert_unicode=True)
except ImportError:
# no sqlite
pass
else:
# raises DBAPIerror due to use_unicode not a sqlite arg
assert_raises(tsa.exc.DBAPIError, e.connect)
def test_urlattr(self):
"""test the url attribute on ``Engine``."""
e = create_engine('mysql://scott:tiger@localhost/test', module=mock_dbapi, _initialize=False)
u = url.make_url('mysql://scott:tiger@localhost/test')
e2 = create_engine(u, module=mock_dbapi, _initialize=False)
assert e.url.drivername == e2.url.drivername == 'mysql'
assert e.url.username == e2.url.username == 'scott'
assert e2.url is u
def test_poolargs(self):
"""test that connection pool args make it thru"""
e = create_engine('postgresql://', creator=None, pool_recycle=50, echo_pool=None, module=mock_dbapi, _initialize=False)
assert e.pool._recycle == 50
# these args work for QueuePool
e = create_engine('postgresql://',
max_overflow=8, pool_timeout=60,
poolclass=tsa.pool.QueuePool, module=mock_dbapi,
_initialize=False)
# but not SingletonThreadPool
assert_raises(TypeError, create_engine, 'sqlite://', max_overflow=8, pool_timeout=60,
poolclass=tsa.pool.SingletonThreadPool, module=mock_sqlite_dbapi,
_initialize=False)
class MockDBAPI(object):
def __init__(self, **kwargs):
self.kwargs = kwargs
self.paramstyle = 'named'
def connect(self, *args, **kwargs):
for k in self.kwargs:
assert k in kwargs, "key %s not present in dictionary" % k
assert kwargs[k]==self.kwargs[k], "value %s does not match %s" % (kwargs[k], self.kwargs[k])
return MockConnection()
class MockConnection(object):
def get_server_info(self):
return "5.0"
def close(self):
pass
def cursor(self):
return MockCursor()
class MockCursor(object):
def close(self):
pass
mock_dbapi = MockDBAPI()
mock_sqlite_dbapi = msd = MockDBAPI()
msd.version_info = msd.sqlite_version_info = (99, 9, 9)
msd.sqlite_version = '99.9.9'
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