{{ message }}
forked from oracle/python-cx_Oracle
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathSessionPool.py
More file actions
183 lines (167 loc) · 8.08 KB
/
Copy pathSessionPool.py
File metadata and controls
183 lines (167 loc) · 8.08 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
#------------------------------------------------------------------------------
# Copyright 2016, 2017, 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.
#------------------------------------------------------------------------------
"""Module for testing session pools."""
import threading
class TestConnection(TestCase):
def __ConnectAndDrop(self):
"""Connect to the database, perform a query and drop the connection."""
connection = self.pool.acquire()
cursor = connection.cursor()
cursor.execute("select count(*) from TestNumbers")
count, = cursor.fetchone()
self.assertEqual(count, 10)
def __ConnectAndGenerateError(self):
"""Connect to the database, perform a query which raises an error"""
connection = self.pool.acquire()
cursor = connection.cursor()
self.assertRaises(cx_Oracle.DatabaseError, cursor.execute,
"select 1 / 0 from dual")
def testPool(self):
"""test that the pool is created and has the right attributes"""
pool = cx_Oracle.SessionPool(USERNAME, PASSWORD, TNSENTRY, 2, 8, 3,
encoding = ENCODING, nencoding = NENCODING)
self.assertEqual(pool.username, USERNAME, "user name differs")
self.assertEqual(pool.tnsentry, TNSENTRY, "tnsentry differs")
self.assertEqual(pool.dsn, TNSENTRY, "dsn differs")
self.assertEqual(pool.max, 8, "max differs")
self.assertEqual(pool.min, 2, "min differs")
self.assertEqual(pool.increment, 3, "increment differs")
self.assertEqual(pool.opened, 2, "opened differs")
self.assertEqual(pool.busy, 0, "busy not 0 at start")
connection_1 = pool.acquire()
self.assertEqual(pool.busy, 1, "busy not 1 after acquire")
self.assertEqual(pool.opened, 2, "opened not unchanged (1)")
connection_2 = pool.acquire()
self.assertEqual(pool.busy, 2, "busy not 2 after acquire")
self.assertEqual(pool.opened, 2, "opened not unchanged (2)")
connection_3 = pool.acquire()
self.assertEqual(pool.busy, 3, "busy not 3 after acquire")
self.assertEqual(pool.opened, 5, "opened not changed (3)")
pool.release(connection_3)
self.assertEqual(pool.busy, 2, "busy not 2 after release")
del connection_2
self.assertEqual(pool.busy, 1, "busy not 1 after del")
pool.getmode = cx_Oracle.SPOOL_ATTRVAL_NOWAIT
self.assertEqual(pool.getmode, cx_Oracle.SPOOL_ATTRVAL_NOWAIT)
pool.stmtcachesize = 50
self.assertEqual(pool.stmtcachesize, 50)
pool.timeout = 10
self.assertEqual(pool.timeout, 10)
if CLIENT_VERSION >= (12, 1):
pool.max_lifetime_session = 10
self.assertEqual(pool.max_lifetime_session, 10)
def testProxyAuth(self):
"""test that proxy authentication is possible"""
pool = cx_Oracle.SessionPool(USERNAME, PASSWORD, TNSENTRY, 2, 8, 3,
encoding = ENCODING, nencoding = NENCODING)
self.assertEqual(pool.homogeneous, 1,
"homogeneous should be 1 by default")
self.assertRaises(cx_Oracle.ProgrammingError, pool.acquire,
user = u"missing_proxyuser")
pool = cx_Oracle.SessionPool(USERNAME, PASSWORD, TNSENTRY, 2, 8, 3,
homogeneous = False, encoding = ENCODING,
nencoding = NENCODING)
self.assertEqual(pool.homogeneous, 0,
"homogeneous should be 0 after setting it in the constructor")
connection = pool.acquire(user = PROXY_USERNAME)
cursor = connection.cursor()
cursor.execute('select user from dual')
result, = cursor.fetchone()
self.assertEqual(result, PROXY_USERNAME.upper())
def testRollbackOnDel(self):
"connection rolls back before being destroyed"
pool = cx_Oracle.SessionPool(USERNAME, PASSWORD, TNSENTRY, 1, 8, 3,
encoding = ENCODING, nencoding = NENCODING)
connection = pool.acquire()
cursor = connection.cursor()
cursor.execute("truncate table TestTempTable")
cursor.execute("insert into TestTempTable (IntCol) values (1)")
pool = cx_Oracle.SessionPool(USERNAME, PASSWORD, TNSENTRY, 1, 8, 3,
encoding = ENCODING, nencoding = NENCODING)
connection = pool.acquire()
cursor = connection.cursor()
cursor.execute("select count(*) from TestTempTable")
count, = cursor.fetchone()
self.assertEqual(count, 0)
def testRollbackOnRelease(self):
"connection rolls back before released back to the pool"
pool = cx_Oracle.SessionPool(USERNAME, PASSWORD, TNSENTRY, 1, 8, 3,
encoding = ENCODING, nencoding = NENCODING)
connection = pool.acquire()
cursor = connection.cursor()
cursor.execute("truncate table TestTempTable")
cursor.execute("insert into TestTempTable (IntCol) values (1)")
cursor.close()
pool.release(connection)
pool = cx_Oracle.SessionPool(USERNAME, PASSWORD, TNSENTRY, 1, 8, 3,
encoding = ENCODING, nencoding = NENCODING)
connection = pool.acquire()
cursor = connection.cursor()
cursor.execute("select count(*) from TestTempTable")
count, = cursor.fetchone()
self.assertEqual(count, 0)
def testThreading(self):
"""test session pool to database with multiple threads"""
self.pool = cx_Oracle.SessionPool(USERNAME, PASSWORD, TNSENTRY,
min = 5, max = 20, increment = 2, threaded = True,
getmode = cx_Oracle.SPOOL_ATTRVAL_WAIT, encoding = ENCODING,
nencoding = NENCODING)
threads = []
for i in range(20):
thread = threading.Thread(None, self.__ConnectAndDrop)
threads.append(thread)
thread.start()
for thread in threads:
thread.join()
def testThreadingWithErrors(self):
"""test session pool to database with multiple threads (with errors)"""
self.pool = cx_Oracle.SessionPool(USERNAME, PASSWORD, TNSENTRY,
min = 5, max = 20, increment = 2, threaded = True,
getmode = cx_Oracle.SPOOL_ATTRVAL_WAIT, encoding = ENCODING,
nencoding = NENCODING)
threads = []
for i in range(20):
thread = threading.Thread(None, self.__ConnectAndGenerateError)
threads.append(thread)
thread.start()
for thread in threads:
thread.join()
def testPurity(self):
"""test session pool with various types of purity"""
action = "TEST_ACTION"
pool = cx_Oracle.SessionPool(USERNAME, PASSWORD, TNSENTRY, min = 1,
max = 8, increment = 1, encoding = ENCODING,
nencoding = NENCODING)
# get connection and set the action
connection = pool.acquire()
connection.action = action
cursor = connection.cursor()
cursor.execute("select 1 from dual")
cursor.close()
pool.release(connection)
self.assertEqual(pool.opened, 1, "opened (1)")
# verify that the connection still has the action set on it
connection = pool.acquire()
cursor = connection.cursor()
cursor.execute("select sys_context('userenv', 'action') from dual")
result, = cursor.fetchone()
self.assertEqual(result, action)
cursor.close()
pool.release(connection)
self.assertEqual(pool.opened, 1, "opened (2)")
# get a new connection with new purity (should not have state)
connection = pool.acquire(purity = cx_Oracle.ATTR_PURITY_NEW)
cursor = connection.cursor()
cursor.execute("select sys_context('userenv', 'action') from dual")
result, = cursor.fetchone()
self.assertEqual(result, None)
cursor.close()
self.assertEqual(pool.opened, 2, "opened (3)")
pool.drop(connection)
self.assertEqual(pool.opened, 1, "opened (4)")
You can’t perform that action at this time.