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# -*- encoding: utf-8
from sqlalchemy.testing import eq_, engines
from sqlalchemy import *
from sqlalchemy import exc
from sqlalchemy.dialects.mssql import pyodbc, pymssql
from sqlalchemy.engine import url
from sqlalchemy.testing import fixtures
from sqlalchemy import testing
from sqlalchemy.testing import assert_raises_message, assert_warnings
from sqlalchemy.testing.mock import Mock
class ParseConnectTest(fixtures.TestBase):
def test_pyodbc_connect_dsn_trusted(self):
dialect = pyodbc.dialect()
u = url.make_url('mssql://mydsn')
connection = dialect.create_connect_args(u)
eq_([['dsn=mydsn;Trusted_Connection=Yes'], {}], connection)
def test_pyodbc_connect_old_style_dsn_trusted(self):
dialect = pyodbc.dialect()
u = url.make_url('mssql:///?dsn=mydsn')
connection = dialect.create_connect_args(u)
eq_([['dsn=mydsn;Trusted_Connection=Yes'], {}], connection)
def test_pyodbc_connect_dsn_non_trusted(self):
dialect = pyodbc.dialect()
u = url.make_url('mssql://username:password@mydsn')
connection = dialect.create_connect_args(u)
eq_([['dsn=mydsn;UID=username;PWD=password'], {}], connection)
def test_pyodbc_connect_dsn_extra(self):
dialect = pyodbc.dialect()
u = \
url.make_url('mssql://username:password@mydsn/?LANGUAGE=us_'
'english&foo=bar')
connection = dialect.create_connect_args(u)
dsn_string = connection[0][0]
assert ";LANGUAGE=us_english" in dsn_string
assert ";foo=bar" in dsn_string
def test_pyodbc_hostname(self):
dialect = pyodbc.dialect()
u = url.make_url('mssql://username:password@hostspec/database?driver=SQL+Server')
connection = dialect.create_connect_args(u)
eq_([['DRIVER={SQL Server};Server=hostspec;Database=database;UI'
'D=username;PWD=password'], {}], connection)
def test_pyodbc_host_no_driver(self):
dialect = pyodbc.dialect()
u = url.make_url('mssql://username:password@hostspec/database')
def go():
return dialect.create_connect_args(u)
connection = assert_warnings(
go,
["No driver name specified; this is expected by "
"PyODBC when using DSN-less connections"])
eq_([['Server=hostspec;Database=database;UI'
'D=username;PWD=password'], {}], connection)
def test_pyodbc_connect_comma_port(self):
dialect = pyodbc.dialect()
u = \
url.make_url('mssql://username:password@hostspec:12345/data'
'base?driver=SQL Server')
connection = dialect.create_connect_args(u)
eq_([['DRIVER={SQL Server};Server=hostspec,12345;Database=datab'
'ase;UID=username;PWD=password'], {}], connection)
def test_pyodbc_connect_config_port(self):
dialect = pyodbc.dialect()
u = \
url.make_url('mssql://username:password@hostspec/database?p'
'ort=12345&driver=SQL+Server')
connection = dialect.create_connect_args(u)
eq_([['DRIVER={SQL Server};Server=hostspec;Database=database;UI'
'D=username;PWD=password;port=12345'], {}], connection)
def test_pyodbc_extra_connect(self):
dialect = pyodbc.dialect()
u = \
url.make_url('mssql://username:password@hostspec/database?L'
'ANGUAGE=us_english&foo=bar&driver=SQL+Server')
connection = dialect.create_connect_args(u)
eq_(connection[1], {})
eq_(connection[0][0]
in ('DRIVER={SQL Server};Server=hostspec;Database=database;'
'UID=username;PWD=password;foo=bar;LANGUAGE=us_english',
'DRIVER={SQL Server};Server=hostspec;Database=database;UID='
'username;PWD=password;LANGUAGE=us_english;foo=bar'), True)
def test_pyodbc_odbc_connect(self):
dialect = pyodbc.dialect()
u = \
url.make_url('mssql:///?odbc_connect=DRIVER%3D%7BSQL+Server'
'%7D%3BServer%3Dhostspec%3BDatabase%3Ddatabase'
'%3BUID%3Dusername%3BPWD%3Dpassword')
connection = dialect.create_connect_args(u)
eq_([['DRIVER={SQL Server};Server=hostspec;Database=database;UI'
'D=username;PWD=password'], {}], connection)
def test_pyodbc_odbc_connect_with_dsn(self):
dialect = pyodbc.dialect()
u = \
url.make_url('mssql:///?odbc_connect=dsn%3Dmydsn%3BDatabase'
'%3Ddatabase%3BUID%3Dusername%3BPWD%3Dpassword'
)
connection = dialect.create_connect_args(u)
eq_([['dsn=mydsn;Database=database;UID=username;PWD=password'],
{}], connection)
def test_pyodbc_odbc_connect_ignores_other_values(self):
dialect = pyodbc.dialect()
u = \
url.make_url('mssql://userdiff:passdiff@localhost/dbdiff?od'
'bc_connect=DRIVER%3D%7BSQL+Server%7D%3BServer'
'%3Dhostspec%3BDatabase%3Ddatabase%3BUID%3Duse'
'rname%3BPWD%3Dpassword')
connection = dialect.create_connect_args(u)
eq_([['DRIVER={SQL Server};Server=hostspec;Database=database;UI'
'D=username;PWD=password'], {}], connection)
def test_pymssql_port_setting(self):
dialect = pymssql.dialect()
u = \
url.make_url('mssql+pymssql://scott:tiger@somehost/test')
connection = dialect.create_connect_args(u)
eq_(
[[], {'host': 'somehost', 'password': 'tiger',
'user': 'scott', 'database': 'test'}], connection
)
u = \
url.make_url('mssql+pymssql://scott:tiger@somehost:5000/test')
connection = dialect.create_connect_args(u)
eq_(
[[], {'host': 'somehost:5000', 'password': 'tiger',
'user': 'scott', 'database': 'test'}], connection
)
def test_pymssql_disconnect(self):
dialect = pymssql.dialect()
for error in [
'Adaptive Server connection timed out',
'Net-Lib error during Connection reset by peer',
'message 20003',
'Error 10054',
'Not connected to any MS SQL server',
'Connection is closed'
]:
eq_(dialect.is_disconnect(error, None, None), True)
eq_(dialect.is_disconnect("not an error", None, None), False)
@testing.requires.mssql_freetds
def test_bad_freetds_warning(self):
engine = engines.testing_engine()
def _bad_version(connection):
return 95, 10, 255
engine.dialect._get_server_version_info = _bad_version
assert_raises_message(exc.SAWarning,
'Unrecognized server version info',
engine.connect)
class EngineFromConfigTest(fixtures.TestBase):
def test_legacy_schema_flag(self):
cfg = {
"sqlalchemy.url": "mssql://foodsn",
"sqlalchemy.legacy_schema_aliasing": "false"
}
e = engine_from_config(
cfg, module=Mock(version="MS SQL Server 11.0.92"))
eq_(e.dialect.legacy_schema_aliasing, False)
class VersionDetectionTest(fixtures.TestBase):
def test_pymssql_version(self):
dialect = pymssql.MSDialect_pymssql()
for vers in [
"Microsoft SQL Server Blah - 11.0.9216.62",
"Microsoft SQL Server (XYZ) - 11.0.9216.62 \n"
"Jul 18 2014 22:00:21 \nCopyright (c) Microsoft Corporation",
"Microsoft SQL Azure (RTM) - 11.0.9216.62 \n"
"Jul 18 2014 22:00:21 \nCopyright (c) Microsoft Corporation"
]:
conn = Mock(scalar=Mock(return_value=vers))
eq_(
dialect._get_server_version_info(conn),
(11, 0, 9216, 62)
)
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