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"""
Test context managers -- i.e.: the `with` statement
"""
try:
import unittest2 as unittest
except ImportError:
import unittest
from pymssql import InterfaceError
from .helpers import pymssqlconn, mssqlconn
class TestContextManagers(unittest.TestCase):
def test_pymssql_Connection_with(self):
with pymssqlconn() as conn:
cursor = conn.cursor()
cursor.execute("SELECT @@version AS version")
self.assertIsNotNone(conn._conn)
with self.assertRaises(InterfaceError) as context:
self.assertIsNotNone(conn._conn)
self.assertEqual(str(context.exception), "Connection is closed.")
def test_pymssql_Cursor_with(self):
conn = pymssqlconn()
with conn.cursor() as cursor:
cursor.execute("SELECT @@version AS version")
self.assertIsNotNone(conn._conn)
self.assertIsNotNone(cursor)
with self.assertRaises(InterfaceError) as context:
cursor.execute("SELECT @@version AS version")
self.assertEqual(str(context.exception), "Cursor is closed.")
def test_mssql_Connection_with(self):
with mssqlconn() as conn:
conn.execute_query("SELECT @@version AS version")
self.assertTrue(conn.connected)
self.assertFalse(conn.connected)
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