xref: /sqlite-3.40.0/test/mutex2.test (revision 8a42cbd3) 
1# 2008 July 7
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#
12# Test scripts for deliberate failures of mutex routines.
13#
14# $Id: mutex2.test,v 1.4 2008/07/10 18:13:43 drh Exp $
15
16set testdir [file dirname $argv0]
17source $testdir/tester.tcl
18
19# deinitialize
20#
21catch {db close}
22sqlite3_reset_auto_extension
23sqlite3_shutdown
24install_mutex_counters 1
25
26# Fix the mutex subsystem so that it will not initialize.  In other words,
27# make it so that sqlite3_initialize() always fails.
28#
29do_test mutex2-1.1 {
30  set ::disable_mutex_init 10
31  sqlite3_initialize
32} {SQLITE_IOERR}
33do_test mutex2-1.1 {
34  set ::disable_mutex_init 7
35  sqlite3_initialize
36} {SQLITE_NOMEM}
37
38proc utf16 {str} {
39  set r [encoding convertto unicode $str]
40  append r "\x00\x00"
41  return $r
42}
43
44# Now that sqlite3_initialize() is failing, try to run various APIs that
45# require that SQLite be initialized.  Verify that they fail.
46#
47do_test mutex2-2.1 {
48  set ::disable_mutex_init 7
49  set rc [catch {sqlite db test.db} msg]
50  lappend rc $msg
51} {1 {out of memory}}
52ifcapable utf16 {
53  do_test mutex2-2.2 {
54    set db2 [sqlite3_open16 [utf16 test.db] {}]
55  } {0}
56  do_test mutex2-2.3 {
57    sqlite3_complete16 [utf16 {SELECT * FROM t1;}]
58  } {7}
59}
60do_test mutex2-2.4 {
61  sqlite3_mprintf_int {This is a test %d,%d,%d} 1 2 3
62} {This is a test 1,2,3}
63do_test mutex2-2.5 {
64  sqlite3_auto_extension_sqr
65} {7}
66do_test mutex2-2.6 {
67  sqlite3_reset_auto_extension
68} {}
69do_test mutex2-2.7 {
70  sqlite3_malloc 10000
71} {00000000}
72do_test mutex2-2.8 {
73  sqlite3_realloc 0 10000
74} {00000000}
75do_test mutex2-2.9 {
76  alloc_dealloc_mutex
77} {0}
78do_test mutex2-2.10 {
79  vfs_initfail_test
80} {}
81
82# Restore the system to a functional state
83#
84install_mutex_counters 0
85set disable_mutex_init 0
86autoinstall_test_functions
87
88# Mutex allocation works now.
89#
90
91do_test mutex2-3.1 {
92  set ptr [alloc_dealloc_mutex]
93  expr {$ptr!=0}
94} {1}
95
96
97finish_test
98