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import testenv; testenv.configure_for_tests()
import ConfigParser, StringIO
from sqlalchemy import *
from sqlalchemy import exceptions, pool, engine
import sqlalchemy.engine.url as url
from testlib import *
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)
print u, text
print "username=", u.username, "password=", u.password, "database=", u.database, "host=", u.host
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 propigated properly"""
def test_connect_query(self):
dbapi = MockDBAPI(foober='12', lala='18', fooz='somevalue')
# start the postgres dialect, but put our mock DBAPI as the module instead of psycopg
e = create_engine('postgres://scott:tiger@somehost/test?foober=12&lala=18&fooz=somevalue', module=dbapi)
c = e.connect()
def test_kwargs(self):
dbapi = MockDBAPI(foober=12, lala=18, hoho={'this':'dict'}, fooz='somevalue')
# start the postgres dialect, but put our mock DBAPI as the module instead of psycopg
e = create_engine('postgres://scott:tiger@somehost/test?fooz=somevalue', connect_args={'foober':12, 'lala':18, 'hoho':{'this':'dict'}}, module=dbapi)
c = e.connect()
def test_coerce_config(self):
raw = r"""
[prefixed]
sqlalchemy.url=postgres://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=postgres://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': 'postgres://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_(engine._coerce_config(prefixed, 'sqlalchemy.') == expected)
plain = dict(ini.items('plain'))
self.assert_(engine._coerce_config(plain, '') == expected)
def test_engine_from_config(self):
dbapi = MockDBAPI()
config = {
'sqlalchemy.url':'postgres://scott:tiger@somehost/test?fooz=somevalue',
'sqlalchemy.pool_recycle':'50',
'sqlalchemy.echo':'true'
}
e = engine_from_config(config, module=dbapi)
assert e.pool._recycle == 50
assert e.url == url.make_url('postgres://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 postgres dialect, but put our mock DBAPI as the module instead of psycopg
e = create_engine('postgres://', creator=connect, module=dbapi)
c = e.connect()
def test_recycle(self):
dbapi = MockDBAPI(foober=12, lala=18, hoho={'this':'dict'}, fooz='somevalue')
e = create_engine('postgres://', pool_recycle=472, module=dbapi)
assert e.pool._recycle == 472
def test_badargs(self):
# good arg, use MockDBAPI to prevent oracle import errors
e = create_engine('oracle://', use_ansi=True, module=MockDBAPI())
try:
e = create_engine("foobar://", module=MockDBAPI())
assert False
except ImportError:
assert True
# bad arg
try:
e = create_engine('postgres://', use_ansi=True, module=MockDBAPI())
assert False
except TypeError:
assert True
# bad arg
try:
e = create_engine('oracle://', lala=5, use_ansi=True, module=MockDBAPI())
assert False
except TypeError:
assert True
try:
e = create_engine('postgres://', lala=5, module=MockDBAPI())
assert False
except TypeError:
assert True
try:
e = create_engine('sqlite://', lala=5)
assert False
except TypeError:
assert True
try:
e = create_engine('mysql://', use_unicode=True, module=MockDBAPI())
assert False
except TypeError:
assert True
try:
# sqlite uses SingletonThreadPool which doesnt have max_overflow
e = create_engine('sqlite://', max_overflow=5)
assert False
except TypeError:
assert True
e = create_engine('mysql://', module=MockDBAPI(), connect_args={'use_unicode':True}, convert_unicode=True)
e = create_engine('sqlite://', connect_args={'use_unicode':True}, convert_unicode=True)
try:
c = e.connect()
assert False
except exceptions.DBAPIError:
assert True
def test_urlattr(self):
"""test the url attribute on ``Engine``."""
e = create_engine('mysql://scott:tiger@localhost/test', module=MockDBAPI())
u = url.make_url('mysql://scott:tiger@localhost/test')
e2 = create_engine(u, module=MockDBAPI())
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('postgres://', creator=None, pool_recycle=50, echo_pool=None, module=MockDBAPI())
assert e.pool._recycle == 50
# these args work for QueuePool
e = create_engine('postgres://', max_overflow=8, pool_timeout=60, poolclass=pool.QueuePool, module=MockDBAPI())
try:
# but not SingletonThreadPool
e = create_engine('sqlite://', max_overflow=8, pool_timeout=60, poolclass=pool.SingletonThreadPool)
assert False
except TypeError:
assert True
class MockDBAPI(object):
def __init__(self, **kwargs):
self.kwargs = kwargs
self.paramstyle = 'named'
def connect(self, **kwargs):
print kwargs, self.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 close(self):
pass
def cursor(self):
return MockCursor()
class MockCursor(object):
def close(self):
pass
mock_dbapi = MockDBAPI()
if __name__ == "__main__":
testenv.main()
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