forked from npgsql/npgsql
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathSystemTransactionTests.cs
More file actions
287 lines (261 loc) · 12.5 KB
/
SystemTransactionTests.cs
File metadata and controls
287 lines (261 loc) · 12.5 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
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
#region License
// The PostgreSQL License
//
// Copyright (C) 2015 The Npgsql Development Team
//
// Permission to use, copy, modify, and distribute this software and its
// documentation for any purpose, without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph and the following two paragraphs appear in all copies.
//
// IN NO EVENT SHALL THE NPGSQL DEVELOPMENT TEAM BE LIABLE TO ANY PARTY
// FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
// INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
// DOCUMENTATION, EVEN IF THE NPGSQL DEVELOPMENT TEAM HAS BEEN ADVISED OF
// THE POSSIBILITY OF SUCH DAMAGE.
//
// THE NPGSQL DEVELOPMENT TEAM SPECIFICALLY DISCLAIMS ANY WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
// ON AN "AS IS" BASIS, AND THE NPGSQL DEVELOPMENT TEAM HAS NO OBLIGATIONS
// TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
#endregion
using System;
using System.Data;
using System.Reflection;
using System.Transactions;
using Npgsql;
using NpgsqlTypes;
using NUnit.Framework;
namespace Npgsql.Tests
{
[TestFixture]
public class SystemTransactionTests : TestBase
{
public SystemTransactionTests(string backendVersion) : base(backendVersion) { }
[Test, Description("Single connection enlisting explicitly, committing")]
public void ExplicitEnlist()
{
using (var connection = new NpgsqlConnection(ConnectionString))
{
using (var scope = new TransactionScope())
{
connection.Open();
connection.EnlistTransaction(Transaction.Current);
Assert.That(ExecuteNonQuery(@"INSERT INTO data (name) VALUES('test')", connection), Is.EqualTo(1));
scope.Complete();
}
}
AssertNoPreparedTransactions();
Assert.That(ExecuteScalar(@"SELECT COUNT(*) FROM data"), Is.EqualTo(1));
}
[Test, Description("Single connection enlisting implicitly, committing")]
public void ImplicitEnlist()
{
var connectionString = ConnectionString + ";enlist=true";
using (var scope = new TransactionScope())
{
using (var connection = new NpgsqlConnection(connectionString))
{
connection.Open();
Assert.That(ExecuteNonQuery(@"INSERT INTO data (name) VALUES('test')", connection), Is.EqualTo(1));
}
scope.Complete();
}
AssertNoPreparedTransactions();
Assert.That(ExecuteScalar(@"SELECT COUNT(*) FROM data"), Is.EqualTo(1));
}
[Test, Description("Single connection rollback")]
public void Rollback()
{
var connectionString = ConnectionString + ";enlist=true";
using (var scope = new TransactionScope())
{
using (var connection = new NpgsqlConnection(connectionString))
{
connection.Open();
Assert.That(ExecuteNonQuery(@"INSERT INTO data (name) VALUES('test')", connection), Is.EqualTo(1));
// No commit
}
}
AssertNoPreparedTransactions();
Assert.That(ExecuteScalar(@"SELECT COUNT(*) FROM data"), Is.EqualTo(0));
}
[Test]
[Ignore("Causing a weird timeout issue for other tests? Also clean up...")]
public void DistributedTransactionRollback()
{
int field_serial1;
int field_serial2;
var connectionString = ConnectionString + ";enlist=true";
using (var scope = new TransactionScope())
{
//UseStringParameterWithNoNpgsqlDbType
using (var connection = new NpgsqlConnection(connectionString))
{
connection.Open();
var command = new NpgsqlCommand("insert into data (field_text) values (:p0)", connection);
command.Parameters.Add(new NpgsqlParameter("p0", "test"));
Assert.AreEqual(command.Parameters[0].NpgsqlDbType, NpgsqlDbType.Text);
Assert.AreEqual(command.Parameters[0].DbType, DbType.String);
object result = command.ExecuteNonQuery();
Assert.AreEqual(1, result);
field_serial1 = (int) new NpgsqlCommand("select max(field_serial) from data", connection).ExecuteScalar();
var command2 = new NpgsqlCommand("select field_text from data where field_serial = (select max(field_serial) from data)", connection);
result = command2.ExecuteScalar();
Assert.AreEqual("test", result);
}
//UseIntegerParameterWithNoNpgsqlDbType
using (var connection = new NpgsqlConnection(connectionString))
{
connection.Open();
var command = new NpgsqlCommand("insert into data(field_int4) values (:p0)", connection);
command.Parameters.Add(new NpgsqlParameter("p0", 5));
Assert.AreEqual(command.Parameters[0].NpgsqlDbType, NpgsqlDbType.Integer);
Assert.AreEqual(command.Parameters[0].DbType, DbType.Int32);
Object result = command.ExecuteNonQuery();
Assert.AreEqual(1, result);
field_serial2 = (int) new NpgsqlCommand("select max(field_serial) from data", connection).ExecuteScalar();
var command2 = new NpgsqlCommand( "select field_int4 from data where field_serial = (select max(field_serial) from data)", connection);
result = command2.ExecuteScalar();
Assert.AreEqual(5, result);
// using new connection here... make sure we can't see previous results even though
// it is the same distributed transaction
var command3 = new NpgsqlCommand("select field_text from data where field_serial = :p0", connection);
command3.Parameters.Add(new NpgsqlParameter("p0", field_serial1));
result = command3.ExecuteScalar();
// won't see value of "test" since that's
// another connection
Assert.AreEqual(null, result);
}
// not commiting here.
}
// This is an attempt to wait for the distributed transaction to rollback
// not guaranteed to work, but should be good enough for testing purposes.
System.Threading.Thread.Sleep(500);
AssertNoPreparedTransactions();
// ensure they no longer exist since we rolled back
AssertRowNotExist("field_text", field_serial1);
AssertRowNotExist("field_int4", field_serial2);
}
[Test]
[Ignore("Causing a weird timeout issue for other tests? Also clean up...")]
public void TwoDistributedInSequence()
{
DistributedTransactionRollback();
DistributedTransactionRollback();
}
[Test, Description("Makes sure that when a timeout occurs, the transaction is rolled backed")]
[IssueLink("https://github.com/npgsql/npgsql/issues/495")]
[MonoIgnore("Mono's TransactionScope doesn't enforce the timeout: https://bugzilla.xamarin.com/show_bug.cgi?id=31197")]
public void RollbackOnTimeout()
{
Assert.That(() =>
{
using (var scope = new TransactionScope(TransactionScopeOption.Required, new TimeSpan(0, 0, 1)))
{
using (var conn = new NpgsqlConnection(ConnectionString + ";enlist=true"))
{
conn.Open();
var cmd = new NpgsqlCommand(@"INSERT INTO data (name) VALUES ('HELLO')", conn);
cmd.ExecuteNonQuery(); // the update operation is expected to rollback
System.Threading.Thread.Sleep(2000);
}
scope.Complete();
}
}, Throws.Exception.AssignableTo<TransactionException>());
Assert.That(ExecuteScalar("SELECT COUNT(*) FROM data"), Is.EqualTo(0));
}
[Test, Description("Not sure what this test is supposed to check...")]
[Ignore("There's a real failure here")]
public void FunctionTestTimestamptzParameterSupport()
{
ExecuteNonQuery(@"INSERT INTO data (name) VALUES ('X')");
ExecuteNonQuery(@"CREATE OR REPLACE FUNCTION testtimestamptzparameter(timestamptz) returns refcursor as
$BODY$
declare ref refcursor;
begin
open ref for select * from data;
return ref;
end
$BODY$
language 'plpgsql' volatile called on null input security invoker;");
var connectionString = ConnectionString + ";enlist=true";
using (var scope = new TransactionScope())
{
using (var connection = new NpgsqlConnection(connectionString))
{
connection.Open();
var command = new NpgsqlCommand("testtimestamptzparameter", connection);
command.CommandType = CommandType.StoredProcedure;
command.Parameters.Add(new NpgsqlParameter("p1", NpgsqlDbType.TimestampTZ));
//NpgsqlDataReader dr = command.ExecuteReader();
//Int32 count = 0;
//while (dr.Read())
//count++;
var da = new NpgsqlDataAdapter(command);
var dt = new DataTable();
da.Fill(dt);
Assert.AreEqual(1, dt.Rows.Count);
}
}
}
private void AssertNoPreparedTransactions()
{
using (var cmd = new NpgsqlCommand("select count(*) from pg_prepared_xacts where database = :database", Conn))
{
cmd.Parameters.Add(new NpgsqlParameter("database", Conn.Database));
Assert.That(cmd.ExecuteScalar(), Is.EqualTo(0));
}
}
private void AssertRowNotExist(string columnName, int field_serial)
{
using (var cmd = new NpgsqlCommand("select " + columnName + " from data where field_serial = :p0", Conn))
{
cmd.Parameters.Add(new NpgsqlParameter("p0", field_serial));
Assert.That(cmd.ExecuteScalar(), Is.Null);
}
}
[Test]
public void ReuseConnection()
{
var connectionString = ConnectionString + ";enlist=true";
using (var scope = new TransactionScope())
{
using (var connection = new NpgsqlConnection(connectionString))
{
connection.Open();
connection.Close();
connection.Open();
connection.Close();
}
}
}
#region Setup
[SetUp]
public void SetUp()
{
using (var s = new TransactionScope(TransactionScopeOption.RequiresNew))
{
try
{
Transaction.Current.EnlistPromotableSinglePhase(new FakePromotableSinglePhaseNotification());
}
catch (NotImplementedException)
{
Assert.Ignore("Promotable single phase transactions aren't supported (mono < 3.0.0?)");
}
}
ExecuteNonQuery("DROP TABLE IF EXISTS data");
ExecuteNonQuery("CREATE TABLE data (name TEXT)");
}
class FakePromotableSinglePhaseNotification : IPromotableSinglePhaseNotification
{
public byte[] Promote() { return null; }
public void Initialize() {}
public void SinglePhaseCommit(SinglePhaseEnlistment singlePhaseEnlistment) {}
public void Rollback(SinglePhaseEnlistment singlePhaseEnlistment) {}
}
#endregion
}
}