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| 1 # 2016 November 4 |
| 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 file is testing OOM error handling within the built-in |
| 13 # INSTR() function. |
| 14 # |
| 15 |
| 16 |
| 17 set testdir [file dirname $argv0] |
| 18 source $testdir/tester.tcl |
| 19 set testprefix instrfault |
| 20 |
| 21 # Use big NEEDLE and HAYSTACK strings. Strings so large they cannot |
| 22 # use lookaside buffers. |
| 23 # |
| 24 set ::NEEDLE [string repeat "abcdefghijklmnopqrstuvwxyz" 10] |
| 25 set ::HAYSTACK "[string repeat 123 10]$NEEDLE[string repeat 456 10]" |
| 26 |
| 27 foreach {enc} { |
| 28 utf8 |
| 29 utf16 |
| 30 } { |
| 31 reset_db |
| 32 sqlite3_db_config_lookaside db 0 0 0 |
| 33 |
| 34 execsql "PRAGMA encoding = $enc" |
| 35 do_execsql_test 1.$enc.1 { |
| 36 CREATE TABLE t1(n, h); |
| 37 INSERT INTO t1 VALUES($::NEEDLE, $::HAYSTACK); |
| 38 } {} |
| 39 |
| 40 do_faultsim_test 1.$enc.1 -faults oom-t* -prep { |
| 41 execsql { SELECT instr(h, n) FROM t1 } |
| 42 } -body { |
| 43 execsql { SELECT instr(h, n) FROM t1 } |
| 44 } -test { |
| 45 faultsim_test_result {0 31} |
| 46 } |
| 47 |
| 48 do_faultsim_test 1.$enc.2 -faults oom-t* -prep { |
| 49 execsql { SELECT instr($::HAYSTACK, $::NEEDLE) FROM t1 } |
| 50 } -body { |
| 51 execsql { SELECT instr($::HAYSTACK, $::NEEDLE) FROM t1 } |
| 52 } -test { |
| 53 faultsim_test_result {0 31} |
| 54 } |
| 55 |
| 56 do_faultsim_test 1.$enc.3 -faults oom-t* -prep { |
| 57 set ::stmt [sqlite3_prepare_v2 db "SELECT instr(?, ?)" -1 dummy] |
| 58 sqlite3_bind_text $::stmt 1 $::HAYSTACK [string length $::HAYSTACK] |
| 59 sqlite3_bind_text $::stmt 2 $::NEEDLE [string length $::NEEDLE] |
| 60 } -body { |
| 61 set rc [sqlite3_step $::stmt] |
| 62 if {$rc=="SQLITE_NOMEM"} { error "out of memory" } |
| 63 sqlite3_column_int $::stmt 0 |
| 64 } -test { |
| 65 faultsim_test_result {0 31} |
| 66 sqlite3_finalize $::stmt |
| 67 } |
| 68 |
| 69 do_faultsim_test 1.$enc.4 -faults oom-t* -prep { |
| 70 set ::stmt [sqlite3_prepare_v2 db "SELECT instr(?, ?)" -1 dummy] |
| 71 sqlite3_bind_blob $::stmt 1 $::HAYSTACK [string length $::HAYSTACK] |
| 72 sqlite3_bind_text $::stmt 2 $::NEEDLE [string length $::NEEDLE] |
| 73 } -body { |
| 74 set rc [sqlite3_step $::stmt] |
| 75 if {$rc=="SQLITE_NOMEM"} { error "out of memory" } |
| 76 sqlite3_column_int $::stmt 0 |
| 77 } -test { |
| 78 faultsim_test_result {0 31} |
| 79 sqlite3_finalize $::stmt |
| 80 } |
| 81 |
| 82 do_execsql_test 1.$enc.5.0 { |
| 83 CREATE TABLE h1(a, b); |
| 84 INSERT INTO h1 VALUES('abcdefg%200hijkl', randomblob(200)); |
| 85 INSERT INTO h1 SELECT b, a FROM h1; |
| 86 } |
| 87 do_faultsim_test 1.$enc.5 -faults oom-t* -body { |
| 88 execsql { SELECT rowid FROM h1 WHERE instr(a,b) } |
| 89 } -test {} |
| 90 } |
| 91 |
| 92 finish_test |
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