xref: /sqlite-3.40.0/test/lock5.test (revision 45f31be8) 
1# 2008 June 28
2#
3# The author disclaims copyright to this source code.  In place of
4# a legal notice, here is a blessing:
5#
6#    May you do good and not evil.
7#    May you find forgiveness for yourself and forgive others.
8#    May you share freely, never taking more than you give.
9#
10#***********************************************************************
11# This file implements regression tests for SQLite library.  The
12# focus of this script is database locks.
13#
14# $Id: lock5.test,v 1.6 2008/12/04 12:34:16 drh Exp $
15
16set testdir [file dirname $argv0]
17source $testdir/tester.tcl
18
19# This file is only run if using the unix backend compiled with the
20# SQLITE_ENABLE_LOCKING_STYLE macro.
21db close
22if {[catch {sqlite3 db test.db -vfs unix-none} msg]} {
23  finish_test
24  return
25}
26db close
27forcedelete test.db.lock
28
29ifcapable lock_proxy_pragmas {
30  set ::using_proxy 0
31  foreach {name value} [array get env SQLITE_FORCE_PROXY_LOCKING] {
32    set ::using_proxy $value
33  }
34  # Disable the proxy locking for these tests
35  set env(SQLITE_FORCE_PROXY_LOCKING) "0"
36}
37
38
39do_test lock5-dotfile.1 {
40  sqlite3 db test.db -vfs unix-dotfile
41  execsql {
42    BEGIN;
43    CREATE TABLE t1(a, b);
44  }
45} {}
46
47do_test lock5-dotfile.2 {
48  file exists test.db.lock
49} {1}
50
51do_test lock5-dotfile.3 {
52  execsql COMMIT
53  file exists test.db.lock
54} {0}
55
56do_test lock5-dotfile.4 {
57  sqlite3 db2 test.db -vfs unix-dotfile
58  execsql {
59    INSERT INTO t1 VALUES('a', 'b');
60    SELECT * FROM t1;
61  } db2
62} {a b}
63
64do_test lock5-dotfile.5 {
65  execsql {
66    BEGIN;
67    SELECT * FROM t1;
68  } db2
69} {a b}
70
71do_test lock5-dotfile.6 {
72  file exists test.db.lock
73} {1}
74
75do_test lock5-dotfile.7 {
76  catchsql { SELECT * FROM t1; }
77} {1 {database is locked}}
78
79do_test lock5-dotfile.8 {
80  execsql {
81    SELECT * FROM t1;
82    ROLLBACK;
83  } db2
84} {a b}
85
86do_test lock5-dotfile.9 {
87  catchsql { SELECT * FROM t1; }
88} {0 {a b}}
89
90do_test lock5-dotfile.10 {
91  file exists test.db.lock
92} {0}
93
94do_test lock5-dotfile.X {
95  db2 close
96  execsql {BEGIN EXCLUSIVE}
97  db close
98  file exists test.db.lock
99} {0}
100
101#####################################################################
102
103forcedelete test.db
104if {[catch {sqlite3 db test.db -vfs unix-flock} msg]} {
105  finish_test
106  return
107}
108
109do_test lock5-flock.1 {
110  sqlite3 db test.db -vfs unix-flock
111  execsql {
112    CREATE TABLE t1(a, b);
113    BEGIN;
114    INSERT INTO t1 VALUES(1, 2);
115  }
116} {}
117
118# Make sure we are not accidentally using the dotfile locking scheme.
119do_test lock5-flock.2 {
120  file exists test.db.lock
121} {0}
122
123do_test lock5-flock.3 {
124  catch { sqlite3 db2 test.db -vfs unix-flock }
125  catchsql { SELECT * FROM t1 } db2
126} {1 {database is locked}}
127
128do_test lock5-flock.4 {
129  execsql COMMIT
130  catchsql { SELECT * FROM t1 } db2
131} {0 {1 2}}
132
133do_test lock5-flock.5 {
134  execsql BEGIN
135  catchsql { SELECT * FROM t1 } db2
136} {0 {1 2}}
137
138do_test lock5-flock.6 {
139  execsql {SELECT * FROM t1}
140  catchsql { SELECT * FROM t1 } db2
141} {1 {database is locked}}
142
143do_test lock5-flock.7 {
144  db close
145  catchsql { SELECT * FROM t1 } db2
146} {0 {1 2}}
147
148do_test lock5-flock.8 {
149  db2 close
150} {}
151
152#####################################################################
153
154do_test lock5-none.1 {
155  sqlite3 db test.db -vfs unix-none
156  sqlite3 db2 test.db -vfs unix-none
157  execsql { PRAGMA mmap_size = 0 } db2
158  execsql {
159    BEGIN;
160    INSERT INTO t1 VALUES(3, 4);
161  }
162} {}
163do_test lock5-none.2 {
164  execsql { SELECT * FROM t1 }
165} {1 2 3 4}
166do_test lock5-none.3 {
167  execsql { SELECT * FROM t1; } db2
168} {1 2}
169do_test lock5-none.4 {
170  execsql {
171    BEGIN;
172    SELECT * FROM t1;
173  } db2
174} {1 2}
175do_test lock5-none.5 {
176  execsql COMMIT
177  execsql {SELECT * FROM t1} db2
178} {1 2}
179
180ifcapable memorymanage {
181  do_test lock5-none.6 {
182    sqlite3_release_memory 1000000
183    execsql {SELECT * FROM t1} db2
184  } {1 2 3 4}
185}
186
187do_test lock5-none.X {
188  db close
189  db2 close
190} {}
191
192ifcapable lock_proxy_pragmas {
193  set env(SQLITE_FORCE_PROXY_LOCKING) $::using_proxy
194}
195
196finish_test
197