forked from npgsql/npgsql
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathTextTests.cs
More file actions
390 lines (356 loc) · 18.2 KB
/
TextTests.cs
File metadata and controls
390 lines (356 loc) · 18.2 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
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
#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.Collections.Generic;
using System.Data;
using System.Data.Common;
using System.Linq;
using System.Text;
using Npgsql;
using NpgsqlTypes;
using NUnit.Framework;
namespace Npgsql.Tests.Types
{
/// <summary>
/// Tests on PostgreSQL text
/// </summary>
/// <remarks>
/// http://www.postgresql.org/docs/current/static/datatype-character.html
/// </remarks>
public class TextTests : TestBase
{
[Test, Description("Roundtrips a string")]
public void Roundtrip()
{
const string expected = "Something";
var cmd = new NpgsqlCommand("SELECT @p1, @p2, @p3, @p4", Conn);
var p1 = new NpgsqlParameter("p1", NpgsqlDbType.Text);
var p2 = new NpgsqlParameter("p2", NpgsqlDbType.Varchar);
var p3 = new NpgsqlParameter("p3", DbType.String);
var p4 = new NpgsqlParameter { ParameterName = "p4", Value = expected };
Assert.That(p2.DbType, Is.EqualTo(DbType.String));
Assert.That(p3.NpgsqlDbType, Is.EqualTo(NpgsqlDbType.Text));
Assert.That(p3.DbType, Is.EqualTo(DbType.String));
cmd.Parameters.Add(p1);
cmd.Parameters.Add(p2);
cmd.Parameters.Add(p3);
cmd.Parameters.Add(p4);
p1.Value = p2.Value = p3.Value = expected;
var reader = cmd.ExecuteReader();
reader.Read();
for (var i = 0; i < cmd.Parameters.Count; i++)
{
Assert.That(reader.GetFieldType(i), Is.EqualTo(typeof(string)));
Assert.That(reader.GetString(i), Is.EqualTo(expected));
Assert.That(reader.GetFieldValue<string>(i), Is.EqualTo(expected));
Assert.That(reader.GetValue(i), Is.EqualTo(expected));
Assert.That(reader.GetFieldValue<char[]>(i), Is.EqualTo(expected.ToCharArray()));
}
reader.Close();
cmd.Dispose();
}
[Test]
public void Long([Values(CommandBehavior.Default, CommandBehavior.SequentialAccess)] CommandBehavior behavior)
{
var builder = new StringBuilder("ABCDEééé", Conn.BufferSize);
builder.Append('X', Conn.BufferSize);
var expected = builder.ToString();
ExecuteNonQuery("CREATE TEMP TABLE data (name TEXT)");
var cmd = new NpgsqlCommand(@"INSERT INTO data (name) VALUES (@p)", Conn);
cmd.Parameters.Add(new NpgsqlParameter("p", expected));
cmd.ExecuteNonQuery();
const string queryText = @"SELECT name, 'foo', name, name, name, name FROM data";
cmd = new NpgsqlCommand(queryText, Conn);
var reader = cmd.ExecuteReader(behavior);
reader.Read();
var actual = reader[0];
Assert.That(actual, Is.EqualTo(expected));
if (IsSequential(behavior))
Assert.That(() => reader[0], Throws.Exception.TypeOf<InvalidOperationException>(), "Seek back sequential");
else
Assert.That(reader[0], Is.EqualTo(expected));
Assert.That(reader.GetString(1), Is.EqualTo("foo"));
Assert.That(reader.GetFieldValue<string>(2), Is.EqualTo(expected));
Assert.That(reader.GetValue(3), Is.EqualTo(expected));
Assert.That(reader.GetFieldValue<string>(4), Is.EqualTo(expected));
Assert.That(reader.GetFieldValue<char[]>(5), Is.EqualTo(expected.ToCharArray()));
}
[Test]
public void GetChars([Values(CommandBehavior.Default, CommandBehavior.SequentialAccess)] CommandBehavior behavior)
{
// TODO: This is too small to actually test any interesting sequential behavior
const string str = "ABCDE";
var expected = str.ToCharArray();
var actual = new char[expected.Length];
ExecuteNonQuery("CREATE TEMP TABLE data (name TEXT)");
ExecuteNonQuery(String.Format(@"INSERT INTO data (name) VALUES ('{0}')", str));
const string queryText = @"SELECT name, 3, name, 4, name, name, name FROM data";
var cmd = new NpgsqlCommand(queryText, Conn);
var reader = cmd.ExecuteReader(behavior);
reader.Read();
Assert.That(reader.GetChars(0, 0, actual, 0, 2), Is.EqualTo(2));
Assert.That(actual[0], Is.EqualTo(expected[0]));
Assert.That(actual[1], Is.EqualTo(expected[1]));
Assert.That(reader.GetChars(0, 0, null, 0, 0), Is.EqualTo(expected.Length), "Bad column length");
// Note: Unlike with bytea, finding out the length of the column consumes it (variable-width
// UTF8 encoding)
Assert.That(reader.GetChars(2, 0, actual, 0, 2), Is.EqualTo(2));
if (IsSequential(behavior))
Assert.That(() => reader.GetChars(2, 0, actual, 4, 1), Throws.Exception.TypeOf<InvalidOperationException>(), "Seek back sequential");
else
{
Assert.That(reader.GetChars(2, 0, actual, 4, 1), Is.EqualTo(1));
Assert.That(actual[4], Is.EqualTo(expected[0]));
}
Assert.That(reader.GetChars(2, 2, actual, 2, 3), Is.EqualTo(3));
Assert.That(actual, Is.EqualTo(expected));
//Assert.That(reader.GetChars(2, 0, null, 0, 0), Is.EqualTo(expected.Length), "Bad column length");
Assert.That(() => reader.GetChars(3, 0, null, 0, 0), Throws.Exception.TypeOf<InvalidCastException>(), "GetChars on non-text");
Assert.That(() => reader.GetChars(3, 0, actual, 0, 1), Throws.Exception.TypeOf<InvalidCastException>(), "GetChars on non-text");
Assert.That(reader.GetInt32(3), Is.EqualTo(4));
reader.GetChars(4, 0, actual, 0, 2);
// Jump to another column from the middle of the column
reader.GetChars(5, 0, actual, 0, 2);
Assert.That(reader.GetChars(5, expected.Length - 1, actual, 0, 2), Is.EqualTo(1), "Length greater than data length");
Assert.That(actual[0], Is.EqualTo(expected[expected.Length - 1]), "Length greater than data length");
Assert.That(() => reader.GetChars(5, 0, actual, 0, actual.Length + 1), Throws.Exception.TypeOf<IndexOutOfRangeException>(), "Length great than output buffer length");
// Close in the middle of a column
reader.GetChars(6, 0, actual, 0, 2);
reader.Close();
cmd.Dispose();
}
[Test]
public void GetTextReader([Values(CommandBehavior.Default, CommandBehavior.SequentialAccess)] CommandBehavior behavior)
{
// TODO: This is too small to actually test any interesting sequential behavior
const string str = "ABCDE";
var expected = str.ToCharArray();
var actual = new char[expected.Length];
//ExecuteNonQuery(String.Format(@"INSERT INTO data (field_text) VALUES ('{0}')", str));
string queryText = string.Format(@"SELECT '{0}', 'foo'", str);
var cmd = new NpgsqlCommand(queryText, Conn);
var reader = cmd.ExecuteReader(behavior);
reader.Read();
var textReader = reader.GetTextReader(0);
textReader.Read(actual, 0, 2);
Assert.That(actual[0], Is.EqualTo(expected[0]));
Assert.That(actual[1], Is.EqualTo(expected[1]));
if (behavior == CommandBehavior.Default) {
var textReader2 = reader.GetTextReader(0);
var actual2 = new char[2];
textReader2.Read(actual2, 0, 2);
Assert.That(actual2[0], Is.EqualTo(expected[0]));
Assert.That(actual2[1], Is.EqualTo(expected[1]));
} else {
Assert.That(() => reader.GetTextReader(0), Throws.Exception.TypeOf<InvalidOperationException>(), "Sequential text reader twice on same column");
}
textReader.Read(actual, 2, 1);
Assert.That(actual[2], Is.EqualTo(expected[2]));
textReader.Close();
if (IsSequential(behavior))
Assert.That(() => reader.GetChars(0, 0, actual, 4, 1), Throws.Exception.TypeOf<InvalidOperationException>(), "Seek back sequential");
else
{
Assert.That(reader.GetChars(0, 0, actual, 4, 1), Is.EqualTo(1));
Assert.That(actual[4], Is.EqualTo(expected[0]));
}
Assert.That(reader.GetString(1), Is.EqualTo("foo"));
reader.Close();
cmd.Dispose();
}
[Test, Description("In sequential mode, checks that moving to the next column disposes a currently open text reader")]
public void TextReaderDisposeOnSequentialColumn()
{
var cmd = new NpgsqlCommand(@"SELECT 'some_text', 'some_text'", Conn);
var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess);
reader.Read();
var textReader = reader.GetTextReader(0);
// ReSharper disable once UnusedVariable
var v = reader.GetValue(1);
Assert.That(() => textReader.Peek(), Throws.Exception.TypeOf<ObjectDisposedException>());
reader.Close();
cmd.Dispose();
}
[Test, Description("In non-sequential mode, checks that moving to the next row disposes all currently open text readers")]
public void TextReaderDisposeOnNonSequentialRow()
{
var cmd = new NpgsqlCommand(@"SELECT 'some_text', 'some_text'", Conn);
var reader = cmd.ExecuteReader();
reader.Read();
var tr1 = reader.GetTextReader(0);
var tr2 = reader.GetTextReader(0);
reader.Read();
Assert.That(() => tr1.Peek(), Throws.Exception.TypeOf<ObjectDisposedException>());
Assert.That(() => tr2.Peek(), Throws.Exception.TypeOf<ObjectDisposedException>());
reader.Close();
cmd.Dispose();
}
[Test]
public void Null([Values(CommandBehavior.Default, CommandBehavior.SequentialAccess)] CommandBehavior behavior)
{
var buf = new char[8];
var cmd = new NpgsqlCommand("SELECT NULL::TEXT", Conn);
var reader = cmd.ExecuteReader(behavior);
reader.Read();
Assert.That(reader.IsDBNull(0), Is.True);
Assert.That(() => reader.GetChars(0, 0, buf, 0, 1), Throws.Exception, "GetChars");
Assert.That(() => reader.GetTextReader(0), Throws.Exception, "GetTextReader");
Assert.That(() => reader.GetChars(0, 0, null, 0, 0), Throws.Exception, "GetChars with null buffer");
reader.Close();
cmd.Dispose();
}
[Test, Description("Tests that strings are truncated when the NpgsqlParameter's Size is set")]
public void Truncate()
{
const string data = "SomeText";
var cmd = new NpgsqlCommand("SELECT @p::TEXT", Conn);
var p = new NpgsqlParameter("p", data) { Size = 4 };
cmd.Parameters.Add(p);
Assert.That(cmd.ExecuteScalar(), Is.EqualTo(data.Substring(0, 4)));
// NpgsqlParameter.Size needs to persist when value is changed
const string data2 = "AnotherValue";
p.Value = data2;
Assert.That(cmd.ExecuteScalar(), Is.EqualTo(data2.Substring(0, 4)));
// NpgsqlParameter.Size larger than the value size should mean the value size, as well as 0 and -1
p.Size = data2.Length + 10;
Assert.That(cmd.ExecuteScalar(), Is.EqualTo(data2));
p.Size = 0;
Assert.That(cmd.ExecuteScalar(), Is.EqualTo(data2));
p.Size = -1;
Assert.That(cmd.ExecuteScalar(), Is.EqualTo(data2));
Assert.That(() => p.Size = -2, Throws.Exception.TypeOf<ArgumentException>());
}
[Test]
[IssueLink("https://github.com/npgsql/npgsql/issues/488")]
public void NullCharacter()
{
var cmd = new NpgsqlCommand("SELECT @p1", Conn);
cmd.Parameters.Add(new NpgsqlParameter("p1", "string with \0\0\0 null \0bytes"));
Assert.That(() => cmd.ExecuteReader(),
Throws.Exception.TypeOf<NpgsqlException>()
.With.Property("Code").EqualTo("22021")
);
}
[Test, Description("Tests some types which are aliased to strings")]
[TestCase("varchar")]
[TestCase("name")]
public void AliasedPgTypes(string typename)
{
const string expected = "some_text";
var cmd = new NpgsqlCommand(String.Format("SELECT '{0}'::{1}", expected, typename), Conn);
var reader = cmd.ExecuteReader();
reader.Read();
Assert.That(reader.GetString(0), Is.EqualTo(expected));
Assert.That(reader.GetFieldValue<char[]>(0), Is.EqualTo(expected.ToCharArray()));
reader.Dispose();
cmd.Dispose();
}
[Test]
[TestCase(DbType.AnsiString)]
[TestCase(DbType.AnsiStringFixedLength)]
public void AliasedDbTypes(DbType dbType)
{
using (var command = new NpgsqlCommand("SELECT @p", Conn))
{
command.Parameters.Add(new NpgsqlParameter("p", dbType) { Value = "SomeString" });
Assert.That(command.ExecuteScalar(), Is.EqualTo("SomeString"));
}
}
[Test, Description("Tests the PostgreSQL internal \"char\" type")]
public void InternalChar([Values(true, false)] bool prepareCommand)
{
using (var cmd = Conn.CreateCommand()) {
var testArr = new byte[] { prepareCommand ? (byte)200 : (byte)'}', prepareCommand ? (byte)0 : (byte)'"', 3 };
var testArr2 = new char[] { prepareCommand ? (char)200 : '}', prepareCommand ? (char)0 : '"', (char)3 };
cmd.CommandText = "Select 'a'::\"char\", (-3)::\"char\", :p1, :p2, :p3, :p4, :p5";
cmd.Parameters.Add(new NpgsqlParameter("p1", NpgsqlDbType.InternalChar) { Value = 'b' });
cmd.Parameters.Add(new NpgsqlParameter("p2", NpgsqlDbType.InternalChar) { Value = (byte)66 });
cmd.Parameters.Add(new NpgsqlParameter("p3", NpgsqlDbType.InternalChar) { Value = (byte)230 });
cmd.Parameters.Add(new NpgsqlParameter("p4", NpgsqlDbType.InternalChar | NpgsqlDbType.Array) { Value = testArr });
cmd.Parameters.Add(new NpgsqlParameter("p5", NpgsqlDbType.InternalChar | NpgsqlDbType.Array) { Value = testArr2 });
if (prepareCommand)
cmd.Prepare();
using (var reader = cmd.ExecuteReader()) {
reader.Read();
var expected = new char[] { 'a', (char)(256 - 3), 'b', (char)66, (char)230 };
for (int i = 0; i < expected.Length; i++) {
Assert.AreEqual(expected[i], reader.GetChar(i));
}
var arr = (char[])reader.GetValue(5);
var arr2 = (char[])reader.GetValue(6);
Assert.AreEqual(testArr.Length, arr.Length);
for (int i = 0; i < arr.Length; i++) {
Assert.AreEqual(testArr[i], arr[i]);
Assert.AreEqual(testArr2[i], arr2[i]);
}
}
}
}
[Test]
public void Char()
{
var expected = 'f';
using (var cmd = new NpgsqlCommand("SELECT @p", Conn))
{
cmd.Parameters.AddWithValue("p", expected);
using (var reader = cmd.ExecuteReader())
{
reader.Read();
Assert.That(reader.GetString(0), Is.EqualTo(expected.ToString()));
Assert.That(() => reader.GetChar(0), Throws.Exception);
}
}
}
[Test, Description("Checks support for the citext contrib type")]
[IssueLink("https://github.com/npgsql/npgsql/issues/695")]
public void Citext()
{
if (Conn.PostgreSqlVersion >= new Version(9, 1, 0))
{
ExecuteNonQuery("CREATE EXTENSION IF NOT EXISTS citext");
TypeHandlerRegistry.ClearBackendTypeCache();
}
using (var conn = new NpgsqlConnection(ConnectionString + ";Pooling=false"))
{
conn.Open();
var value = "Foo";
using (var cmd = new NpgsqlCommand("SELECT @p::CITEXT", conn))
{
cmd.Parameters.AddWithValue("p", value);
using (var reader = cmd.ExecuteReader())
{
reader.Read();
Assert.That(reader.GetString(0), Is.EqualTo(value));
}
}
using (var cmd = new NpgsqlCommand("SELECT @p1::CITEXT = @p2::CITEXT", Conn))
{
cmd.Parameters.AddWithValue("p1", NpgsqlDbType.Citext, "abc");
cmd.Parameters.AddWithValue("p2", NpgsqlDbType.Citext, "ABC");
Assert.That(cmd.ExecuteScalar(), Is.True);
}
}
}
public TextTests(string backendVersion) : base(backendVersion) { }
}
}