#------------------------------------------------------------------------------
# Copyright (c) 2016, 2020, Oracle and/or its affiliates. All rights reserved.
#
# Portions Copyright 2007-2015, Anthony Tuininga. All rights reserved.
#
# Portions Copyright 2001-2007, Computronix (Canada) Ltd., Edmonton, Alberta,
# Canada. All rights reserved.
#------------------------------------------------------------------------------
"""
1100 - Module for testing connections
"""
import test_env
import cx_Oracle as oracledb
import random
import string
import threading
class TestCase(test_env.BaseTestCase):
requires_connection = False
def __connect_and_drop(self):
"""Connect to the database, perform a query and drop the connection."""
connection = test_env.get_connection(threaded=True)
cursor = connection.cursor()
cursor.execute("select count(*) from TestNumbers")
count, = cursor.fetchone()
self.assertEqual(count, 10)
def __verify_args(self, connection):
self.assertEqual(connection.username, test_env.get_main_user(),
"user name differs")
self.assertEqual(connection.tnsentry, test_env.get_connect_string(),
"tnsentry differs")
self.assertEqual(connection.dsn, test_env.get_connect_string(),
"dsn differs")
def __verify_attributes(self, connection, attrName, value, sql):
setattr(connection, attrName, value)
cursor = connection.cursor()
cursor.execute(sql)
result, = cursor.fetchone()
self.assertEqual(result, value, "%s value mismatch" % attrName)
def test_1100_all_args(self):
"1100 - connection to database with user, password, TNS separate"
connection = test_env.get_connection()
self.__verify_args(connection)
def test_1101_app_context(self):
"1101 - test use of application context"
namespace = "CLIENTCONTEXT"
app_context_entries = [
( namespace, "ATTR1", "VALUE1" ),
( namespace, "ATTR2", "VALUE2" ),
( namespace, "ATTR3", "VALUE3" )
]
connection = test_env.get_connection(appcontext=app_context_entries)
cursor = connection.cursor()
for namespace, name, value in app_context_entries:
cursor.execute("select sys_context(:1, :2) from dual",
(namespace, name))
actual_value, = cursor.fetchone()
self.assertEqual(actual_value, value)
def test_1102_app_context_negative(self):
"1102 - test invalid use of application context"
self.assertRaises(TypeError, oracledb.connect,
test_env.get_main_user(),
test_env.get_main_password(),
test_env.get_connect_string(),
appcontext=[('userenv', 'action')])
def test_1103_attributes(self):
"1103 - test connection end-to-end tracing attributes"
connection = test_env.get_connection()
if test_env.get_client_version() >= (12, 1) \
and not self.is_on_oracle_cloud(connection):
sql = "select dbop_name from v$sql_monitor " \
"where sid = sys_context('userenv', 'sid')" \
"and status = 'EXECUTING'"
self.__verify_attributes(connection, "dbop", "oracledb_dbop", sql)
sql = "select sys_context('userenv', 'action') from dual"
self.__verify_attributes(connection, "action", "oracledb_Action", sql)
sql = "select sys_context('userenv', 'module') from dual"
self.__verify_attributes(connection, "module", "oracledb_Module", sql)
sql = "select sys_context('userenv', 'client_info') from dual"
self.__verify_attributes(connection, "clientinfo", "oracledb_cinfo",
sql)
sql = "select sys_context('userenv', 'client_identifier') from dual"
self.__verify_attributes(connection, "client_identifier",
"oracledb_cid", sql)
def test_1104_autocommit(self):
"1104 - test use of autocommit"
connection = test_env.get_connection()
cursor = connection.cursor()
other_connection = test_env.get_connection()
other_cursor = other_connection.cursor()
cursor.execute("truncate table TestTempTable")
cursor.execute("insert into TestTempTable (IntCol) values (1)")
other_cursor.execute("select IntCol from TestTempTable")
rows = other_cursor.fetchall()
self.assertEqual(rows, [])
connection.autocommit = True
cursor.execute("insert into TestTempTable (IntCol) values (2)")
other_cursor.execute("select IntCol from TestTempTable order by IntCol")
rows = other_cursor.fetchall()
self.assertEqual(rows, [(1,), (2,)])
def test_1105_bad_connect_string(self):
"1105 - connection to database with bad connect string"
self.assertRaises(oracledb.DatabaseError, oracledb.connect,
test_env.get_main_user())
self.assertRaises(oracledb.DatabaseError, oracledb.connect,
test_env.get_main_user() + "@" + \
test_env.get_connect_string())
self.assertRaises(oracledb.DatabaseError, oracledb.connect,
test_env.get_main_user() + "@" + \
test_env.get_connect_string() + "/" + \
test_env.get_main_password())
def test_1106_bad_password(self):
"1106 - connection to database with bad password"
self.assertRaises(oracledb.DatabaseError, oracledb.connect,
test_env.get_main_user(),
test_env.get_main_password() + "X",
test_env.get_connect_string())
def test_1107_change_password(self):
"1107 - test changing password"
connection = test_env.get_connection()
if self.is_on_oracle_cloud(connection):
self.skipTest("passwords on Oracle Cloud are strictly controlled")
sys_random = random.SystemRandom()
new_password = "".join(sys_random.choice(string.ascii_letters) \
for i in range(20))
connection.changepassword(test_env.get_main_password(), new_password)
cconnection = oracledb.connect(test_env.get_main_user(), new_password,
test_env.get_connect_string())
connection.changepassword(new_password, test_env.get_main_password())
def test_1108_change_password_negative(self):
"1108 - test changing password to an invalid value"
connection = test_env.get_connection()
if self.is_on_oracle_cloud(connection):
self.skipTest("passwords on Oracle Cloud are strictly controlled")
new_password = "1" * 150
self.assertRaises(oracledb.DatabaseError, connection.changepassword,
test_env.get_main_password(), new_password)
def test_1109_parse_password(self):
"1109 - test connecting with password containing / and @ symbols"
connection = test_env.get_connection()
if self.is_on_oracle_cloud(connection):
self.skipTest("passwords on Oracle Cloud are strictly controlled")
sys_random = random.SystemRandom()
chars = list(sys_random.choice(string.ascii_letters) for i in range(20))
chars[4] = "/"
chars[8] = "@"
new_password = "".join(chars)
connection.changepassword(test_env.get_main_password(), new_password)
try:
arg = "%s/%s@%s" % (test_env.get_main_user(), new_password,
test_env.get_connect_string())
oracledb.connect(arg)
finally:
connection.changepassword(new_password,
test_env.get_main_password())
def test_1110_encodings(self):
"1110 - connection with only encoding/nencoding specified should work"
connection = oracledb.connect(test_env.get_main_user(),
test_env.get_main_password(),
test_env.get_connect_string())
encoding = connection.encoding
nencoding = connection.nencoding
alt_encoding = "ISO-8859-1"
connection = oracledb.connect(test_env.get_main_user(),
test_env.get_main_password(),
test_env.get_connect_string(),
encoding=alt_encoding)
self.assertEqual(connection.encoding, alt_encoding)
self.assertEqual(connection.nencoding, nencoding)
connection = oracledb.connect(test_env.get_main_user(),
test_env.get_main_password(),
test_env.get_connect_string(),
nencoding=alt_encoding)
self.assertEqual(connection.encoding, encoding)
self.assertEqual(connection.nencoding, alt_encoding)
def test_1111_different_encodings(self):
"1111 - different encodings can be specified for encoding/nencoding"
connection = oracledb.connect(test_env.get_main_user(),
test_env.get_main_password(),
test_env.get_connect_string(),
encoding="UTF-8", nencoding="UTF-16")
value = "\u03b4\u4e2a"
cursor = connection.cursor()
nchar_var = cursor.var(oracledb.DB_TYPE_NVARCHAR, 100)
nchar_var.setvalue(0, value)
cursor.execute("select :value from dual", value=nchar_var)
result, = cursor.fetchone()
self.assertEqual(result, value)
def test_1112_exception_on_close(self):
"1112 - confirm an exception is raised after closing a connection"
connection = test_env.get_connection()
connection.close()
self.assertRaises(oracledb.InterfaceError, connection.rollback)
def test_1113_connect_with_handle(self):
"1113 - test creating a connection using a handle"
connection = test_env.get_connection()
cursor = connection.cursor()
cursor.execute("truncate table TestTempTable")
int_value = random.randint(1, 32768)
cursor.execute("""
insert into TestTempTable (IntCol, StringCol)
values (:val, null)""", val=int_value)
connection2 = oracledb.connect(handle = connection.handle)
cursor = connection2.cursor()
cursor.execute("select IntCol from TestTempTable")
fetched_int_value, = cursor.fetchone()
self.assertEqual(fetched_int_value, int_value)
cursor.close()
self.assertRaises(oracledb.DatabaseError, connection2.close)
connection.close()
def test_1114_make_dsn(self):
"1114 - test making a data source name from host, port and sid"
format_string = "(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)" + \
"(HOST=%s)(PORT=%d))(CONNECT_DATA=(SID=%s)))"
args = ("hostname", 1521, "TEST")
result = oracledb.makedsn(*args)
self.assertEqual(result, format_string % args)
def test_1115_single_arg(self):
"1115 - connection to database with user, password, DSN together"
arg = "%s/%s@%s" % (test_env.get_main_user(),
test_env.get_main_password(),
test_env.get_connect_string())
connection = oracledb.connect(arg)
self.__verify_args(connection)
def test_1116_version(self):
"1116 - connection version is a string"
connection = test_env.get_connection()
self.assertTrue(isinstance(connection.version, str))
def test_1117_rollback_on_close(self):
"1117 - connection rolls back before close"
connection = test_env.get_connection()
cursor = connection.cursor()
cursor.execute("truncate table TestTempTable")
other_connection = test_env.get_connection()
other_cursor = other_connection.cursor()
other_cursor.execute("insert into TestTempTable (IntCol) values (1)")
other_cursor.close()
other_connection.close()
cursor.execute("select count(*) from TestTempTable")
count, = cursor.fetchone()
self.assertEqual(count, 0)
def test_1118_rollback_on_del(self):
"1118 - connection rolls back before destruction"
connection = test_env.get_connection()
cursor = connection.cursor()
cursor.execute("truncate table TestTempTable")
other_connection = test_env.get_connection()
other_cursor = other_connection.cursor()
other_cursor.execute("insert into TestTempTable (IntCol) values (1)")
del other_cursor
del other_connection
cursor.execute("select count(*) from TestTempTable")
count, = cursor.fetchone()
self.assertEqual(count, 0)
def test_1119_threading(self):
"1119 - connection to database with multiple threads"
threads = []
for i in range(20):
thread = threading.Thread(None, self.__connect_and_drop)
threads.append(thread)
thread.start()
for thread in threads:
thread.join()
def test_1120_string_format(self):
"1120 - test string format of connection"
connection = test_env.get_connection()
expected_value = "<cx_Oracle.Connection to %s@%s>" % \
(test_env.get_main_user(), test_env.get_connect_string())
self.assertEqual(str(connection), expected_value)
def test_1121_ctx_mgr_close(self):
"1121 - test context manager - close"
connection = test_env.get_connection()
with connection:
cursor = connection.cursor()
cursor.execute("truncate table TestTempTable")
cursor.execute("insert into TestTempTable (IntCol) values (1)")
connection.commit()
cursor.execute("insert into TestTempTable (IntCol) values (2)")
self.assertRaises(oracledb.InterfaceError, connection.ping)
connection = test_env.get_connection()
cursor = connection.cursor()
cursor.execute("select count(*) from TestTempTable")
count, = cursor.fetchone()
self.assertEqual(count, 1)
def test_1122_connection_attributes(self):
"1122 - test connection attribute values"
connection = oracledb.connect(test_env.get_main_user(),
test_env.get_main_password(),
test_env.get_connect_string(),
encoding="ASCII")
self.assertEqual(connection.maxBytesPerCharacter, 1)
connection = oracledb.connect(test_env.get_main_user(),
test_env.get_main_password(),
test_env.get_connect_string(),
encoding="UTF-8")
self.assertEqual(connection.maxBytesPerCharacter, 4)
if test_env.get_client_version() >= (12, 1):
self.assertEqual(connection.ltxid, b'')
self.assertEqual(connection.current_schema, None)
connection.current_schema = "test_schema"
self.assertEqual(connection.current_schema, "test_schema")
self.assertEqual(connection.edition, None)
connection.external_name = "test_external"
self.assertEqual(connection.external_name, "test_external")
connection.internal_name = "test_internal"
self.assertEqual(connection.internal_name, "test_internal")
connection.stmtcachesize = 30
self.assertEqual(connection.stmtcachesize, 30)
self.assertRaises(TypeError, connection.stmtcachesize, 20.5)
self.assertRaises(TypeError, connection.stmtcachesize, "value")
def test_1123_closed_connection_attributes(self):
"1123 - test closed connection attribute values"
connection = test_env.get_connection()
connection.close()
attr_names = ["current_schema", "edition", "external_name",
"internal_name", "stmtcachesize"]
if test_env.get_client_version() >= (12, 1):
attr_names.append("ltxid")
for name in attr_names:
self.assertRaises(oracledb.InterfaceError, getattr, connection,
name)
def test_1124_ping(self):
"1124 - test connection ping"
connection = test_env.get_connection()
connection.ping()
def test_1125_transaction_begin(self):
"1125 - test begin, prepare, cancel transaction"
connection = test_env.get_connection()
cursor = connection.cursor()
cursor.execute("truncate table TestTempTable")
connection.begin(10, 'trxnId', 'branchId')
self.assertEqual(connection.prepare(), False)
connection.begin(10, 'trxnId', 'branchId')
cursor.execute("""
insert into TestTempTable (IntCol, StringCol)
values (1, 'tesName')""")
self.assertEqual(connection.prepare(), True)
connection.cancel()
connection.rollback()
cursor.execute("select count(*) from TestTempTable")
count, = cursor.fetchone()
self.assertEqual(count, 0)
if __name__ == "__main__":
test_env.run_test_cases()