{{ message }}
forked from oracle/python-cx_Oracle
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathConnection.py
More file actions
231 lines (207 loc) · 9.86 KB
/
Copy pathConnection.py
File metadata and controls
231 lines (207 loc) · 9.86 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
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
#------------------------------------------------------------------------------
# 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 connections."""
import random
import threading
class TestConnection(TestCase):
def __ConnectAndDrop(self):
"""Connect to the database, perform a query and drop the connection."""
connection = cx_Oracle.connect(self.username, self.password,
self.tnsentry, threaded = True)
cursor = connection.cursor()
cursor.execute(u"select count(*) from TestNumbers")
count, = cursor.fetchone()
self.assertEqual(count, 10)
def __VerifyAttributes(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 setUp(self):
self.username = USERNAME
self.password = PASSWORD
self.tnsentry = TNSENTRY
def verifyArgs(self, connection):
self.assertEqual(connection.username, self.username,
"user name differs")
self.assertEqual(connection.tnsentry, self.tnsentry,
"tnsentry differs")
self.assertEqual(connection.dsn, self.tnsentry, "dsn differs")
def testAllArgs(self):
"connection to database with user, password, TNS separate"
connection = cx_Oracle.connect(self.username, self.password,
self.tnsentry)
self.verifyArgs(connection)
def testAttributes(self):
"test connection end-to-end tracing attributes"
connection = cx_Oracle.connect(USERNAME, PASSWORD, TNSENTRY)
self.__VerifyAttributes(connection, "dbop", "cx_OracleTest_DBOP",
"select dbop_name from v$sql_monitor "
"where sid = sys_context('userenv', 'sid')")
self.__VerifyAttributes(connection, "action", "cx_OracleTest_Action",
"select sys_context('userenv', 'action') from dual")
self.__VerifyAttributes(connection, "module", "cx_OracleTest_Module",
"select sys_context('userenv', 'module') from dual")
self.__VerifyAttributes(connection, "clientinfo",
"cx_OracleTest_CInfo",
"select sys_context('userenv', 'client_info') from dual")
self.__VerifyAttributes(connection, "client_identifier",
"cx_OracleTest_CID",
"select sys_context('userenv', 'client_identifier') from dual")
def testAutoCommit(self):
"test use of autocommit"
connection = cx_Oracle.connect(USERNAME, PASSWORD, TNSENTRY)
cursor = connection.cursor()
otherConnection = cx_Oracle.connect(USERNAME, PASSWORD, TNSENTRY)
otherCursor = otherConnection.cursor()
cursor.execute("truncate table TestTempTable")
cursor.execute("""
insert into TestTempTable (IntCol, StringCol)
values (1, null)""")
otherCursor.execute("select * from TestTempTable")
rows = otherCursor.fetchall()
self.assertEqual(rows, [])
connection.autocommit = True
cursor.execute("""
insert into TestTempTable (IntCol, StringCol)
values (2, null)""")
otherCursor.execute("select * from TestTempTable order by IntCol")
rows = otherCursor.fetchall()
self.assertEqual(rows, [(1, None), (2, None)])
def testBadConnectString(self):
"connection to database with bad connect string"
self.assertRaises(cx_Oracle.DatabaseError, cx_Oracle.connect,
self.username)
self.assertRaises(cx_Oracle.DatabaseError, cx_Oracle.connect,
self.username + u"@" + self.tnsentry)
self.assertRaises(cx_Oracle.DatabaseError, cx_Oracle.connect,
self.username + "@" + self.tnsentry + "/" + self.password)
def testBadPassword(self):
"connection to database with bad password"
self.assertRaises(cx_Oracle.DatabaseError, cx_Oracle.connect,
self.username, self.password + u"X", self.tnsentry)
def testChangePassword(self):
"test changing password"
newPassword = "NEW_PASSWORD"
connection = cx_Oracle.connect(self.username, self.password,
self.tnsentry)
connection.changepassword(self.password, newPassword)
cconnection = cx_Oracle.connect(self.username, newPassword,
self.tnsentry)
connection.changepassword(newPassword, self.password)
def testEncodings(self):
"connection with only encoding or nencoding specified should work"
connection = cx_Oracle.connect(self.username, self.password,
self.tnsentry)
encoding = connection.encoding
nencoding = connection.nencoding
connection = cx_Oracle.connect(self.username, self.password,
self.tnsentry, encoding = "UTF-8")
self.assertEqual(connection.encoding, "UTF-8")
self.assertEqual(connection.nencoding, nencoding)
connection = cx_Oracle.connect(self.username, self.password,
self.tnsentry, nencoding = "UTF-8")
self.assertEqual(connection.encoding, encoding)
self.assertEqual(connection.nencoding, "UTF-8")
def testDifferentEncodings(self):
connection = cx_Oracle.connect(self.username, self.password,
self.tnsentry, encoding = "UTF-8", nencoding = "UTF-16")
value = u"\u03b4\u4e2a"
cursor = connection.cursor()
ncharVar = cursor.var(cx_Oracle.NCHAR, 100)
ncharVar.setvalue(0, value)
cursor.execute("select :value from dual", value = ncharVar)
result, = cursor.fetchone()
self.assertEqual(result, value)
def testExceptionOnClose(self):
"confirm an exception is raised after closing a connection"
connection = cx_Oracle.connect(self.username, self.password,
self.tnsentry)
connection.close()
self.assertRaises(cx_Oracle.DatabaseError, connection.rollback)
def testConnectWithHandle(self):
"test creating a connection using a handle"
connection = cx_Oracle.connect(self.username, self.password,
self.tnsentry)
cursor = connection.cursor()
cursor.execute("truncate table TestTempTable")
intValue = random.randint(1, 32768)
cursor.execute("insert into TestTempTable values (:val, null)",
val = intValue)
connection2 = cx_Oracle.connect(handle = connection.handle)
cursor = connection2.cursor()
cursor.execute("select IntCol from TestTempTable")
fetchedIntValue, = cursor.fetchone()
self.assertEqual(fetchedIntValue, intValue)
cursor.close()
self.assertRaises(cx_Oracle.DatabaseError, connection2.close)
connection.close()
cursor = connection2.cursor()
self.assertRaises(cx_Oracle.DatabaseError, cursor.execute,
"select count(*) from TestTempTable")
def testMakeDSN(self):
"test making a data source name from host, port and sid"
formatString = u"(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)" + \
"(HOST=%s)(PORT=%d))(CONNECT_DATA=(SID=%s)))"
args = ("hostname", 1521, "TEST")
result = cx_Oracle.makedsn(*args)
self.assertEqual(result, formatString % args)
args = (u"hostname", 1521, u"TEST")
result = cx_Oracle.makedsn(*args)
self.assertEqual(result, formatString % args)
def testSingleArg(self):
"connection to database with user, password, TNS together"
connection = cx_Oracle.connect("%s/%s@%s" % \
(self.username, self.password, self.tnsentry))
self.verifyArgs(connection)
def testVersion(self):
"connection version is a string"
connection = cx_Oracle.connect(self.username, self.password,
self.tnsentry)
self.assertTrue(isinstance(connection.version, str))
def testRollbackOnClose(self):
"connection rolls back before close"
connection = cx_Oracle.connect(self.username, self.password,
self.tnsentry)
cursor = connection.cursor()
cursor.execute("truncate table TestTempTable")
otherConnection = cx_Oracle.connect(self.username, self.password,
self.tnsentry)
otherCursor = otherConnection.cursor()
otherCursor.execute("insert into TestTempTable (IntCol) values (1)")
otherCursor.close()
otherConnection.close()
cursor.execute("select count(*) from TestTempTable")
count, = cursor.fetchone()
self.assertEqual(count, 0)
def testRollbackOnDel(self):
"connection rolls back before destruction"
connection = cx_Oracle.connect(self.username, self.password,
self.tnsentry)
cursor = connection.cursor()
cursor.execute("truncate table TestTempTable")
otherConnection = cx_Oracle.connect(self.username, self.password,
self.tnsentry)
otherCursor = otherConnection.cursor()
otherCursor.execute("insert into TestTempTable (IntCol) values (1)")
del otherCursor
del otherConnection
cursor.execute("select count(*) from TestTempTable")
count, = cursor.fetchone()
self.assertEqual(count, 0)
def testThreading(self):
"connection to database with multiple threads"
threads = []
for i in range(20):
thread = threading.Thread(None, self.__ConnectAndDrop)
threads.append(thread)
thread.start()
for thread in threads:
thread.join()
You can’t perform that action at this time.