3 # The author disclaims copyright to this source code. In place of
4 # a legal notice, here is a blessing:
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.
10 #***********************************************************************
11 # This file implements regression tests for SQLite library.
13 # Specifically, it tests the effects of fault injection on the sorter
14 # module (code in vdbesort.c).
17 set testdir [file dirname $argv0]
18 source $testdir/tester.tcl
19 set testprefix sortfault
22 PRAGMA cache_size = 5;
25 foreach {tn mmap_limit nWorker tmpstore threadsmode fakeheap lookaside} {
26 1 0 0 file multithread false false
27 2 100000 0 file multithread false false
28 3 100000 1 file multithread false false
29 4 2000000 0 file singlethread false true
31 if {$sqlite_options(threadsafe)} { set threadsmode singlethread }
33 db eval "PRAGMA threads=$nWorker"
34 sqlite3_config $threadsmode
36 sqlite3_config_lookaside 100 500
38 sqlite3_config_lookaside 0 0
41 sorter_test_fakeheap $fakeheap
43 set str [string repeat a 1000]
46 do_faultsim_test 1.$tn -prep {
48 sqlite3_test_control SQLITE_TESTCTRL_SORTER_MMAP db $::mmap_limit
49 execsql { PRAGMA cache_size = 5 }
55 SELECT x+1, $::str FROM r
58 SELECT count(x), length(y) FROM r GROUP BY (x%5)
61 faultsim_test_result {0 {40 1000 40 1000 40 1000 40 1000 40 1000}}
64 do_faultsim_test 2.$tn -faults oom* -prep {
66 sqlite3_test_control SQLITE_TESTCTRL_SORTER_MMAP db $::mmap_limit
67 add_test_utf16bin_collate db
68 execsql { PRAGMA cache_size = 5 }
74 SELECT x-1, $::str FROM r
77 SELECT count(x), length(y) FROM r GROUP BY y COLLATE utf16bin, (x%5)
80 faultsim_test_result {0 {20 1000 20 1000 20 1000 20 1000 20 1000}}
83 if {$mmap_limit > 1000000} {
84 set str2 [string repeat $str 10]
86 sqlite3_memdebug_vfs_oom_test 0
88 sqlite3_test_control SQLITE_TESTCTRL_SORTER_MMAP db $::mmap_limit
89 execsql { PRAGMA cache_size = 5 }
91 do_faultsim_test 3.$tn -faults oom-trans* -body {
96 SELECT x-1, $::str2 FROM r
99 SELECT count(x), length(y) FROM r GROUP BY y, (x%5)
102 faultsim_test_result {0 {60 10000 60 10000 60 10000 60 10000 60 10000}}
105 sqlite3_memdebug_vfs_oom_test 1
111 set t(0) singlethread
114 sqlite3_config $t($sqlite_options(threadsafe))
115 sqlite3_config_lookaside 100 500
118 #-------------------------------------------------------------------------
121 do_execsql_test 4.0 {
122 CREATE TABLE t1(a, b, c);
123 INSERT INTO t1 VALUES(1, 2, 3);
126 for {set i 0} {$i < 256} {incr i} {
128 INSERT INTO t1 SELECT
129 ((a<<3) + b) & 2147483647,
130 ((b<<3) + c) & 2147483647,
131 ((c<<3) + a) & 2147483647
132 FROM t1 ORDER BY rowid DESC LIMIT 1;
137 faultsim_save_and_close
139 do_faultsim_test 4.2 -faults oom* -prep {
140 faultsim_restore_and_reopen
142 execsql { CREATE UNIQUE INDEX i1 ON t1(a,b,c) }
144 faultsim_test_result {0 {}}
147 #-------------------------------------------------------------------------
150 set a [string repeat a 500]
151 set b [string repeat b 500]
152 set c [string repeat c 500]
153 do_execsql_test 5.0 {
154 CREATE TABLE t1(a, b, c);
155 INSERT INTO t1 VALUES($a, $b, $c);
156 INSERT INTO t1 VALUES($c, $b, $a);
159 do_faultsim_test 5.1 -faults oom* -body {
160 execsql { SELECT * FROM t1 ORDER BY a }
162 faultsim_test_result [list 0 [list $::a $::b $::c $::c $::b $::a]]