wasCSharpSQLite – Blame information for rev 7
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1 | office | 1 | # 2007 June 13 |
2 | # |
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3 | # The author disclaims copyright to this source code. In place of |
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4 | # a legal notice, here is a blessing: |
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5 | # |
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6 | # May you do good and not evil. |
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7 | # May you find forgiveness for yourself and forgive others. |
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8 | # May you share freely, never taking more than you give. |
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9 | # |
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10 | #*********************************************************************** |
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11 | # This file implements regression tests for SQLite library. |
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12 | # |
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13 | # This file implements tests to verify that ticket #2409 has been |
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14 | # fixed. More specifically, they verify that if SQLite cannot |
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15 | # obtain an EXCLUSIVE lock while trying to spill the cache during |
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16 | # any statement other than a COMMIT, an I/O error is returned instead |
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17 | # of SQLITE_BUSY. |
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18 | # |
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19 | # $Id: tkt2409.test,v 1.6 2008/08/28 17:46:19 drh Exp $ |
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20 | |||
21 | # Test Outline: |
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22 | # |
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23 | # tkt-2409-1.*: Cause a cache-spill during an INSERT that is within |
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24 | # a db transaction but does not start a statement transaction. |
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25 | # Verify that the transaction is automatically rolled back |
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26 | # and SQLITE_IOERR_BLOCKED is returned |
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27 | # |
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28 | # UPDATE: As of the pcache modifications, failing to upgrade to |
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29 | # an exclusive lock when attempting a cache-spill is no longer an |
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30 | # error. The pcache module allocates more space and keeps working |
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31 | # in memory if this occurs. |
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32 | # |
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33 | # tkt-2409-2.*: Cause a cache-spill while updating the change-counter |
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34 | # during a database COMMIT. Verify that the transaction is not |
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35 | # rolled back and SQLITE_BUSY is returned. |
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36 | # |
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37 | # tkt-2409-3.*: Similar to 2409-1.*, but using many INSERT statements |
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38 | # within a transaction instead of just one. |
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39 | # |
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40 | # UPDATE: Again, pcache now just keeps working in main memory. |
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41 | # |
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42 | # tkt-2409-4.*: Similar to 2409-1.*, but rig it so that the |
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43 | # INSERT statement starts a statement transaction. Verify that |
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44 | # SQLITE_BUSY is returned and the transaction is not rolled back. |
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45 | # |
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46 | # UPDATE: This time, SQLITE_BUSY is not returned. pcache just uses |
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47 | # more malloc()'d memory. |
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48 | # |
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49 | |||
50 | set testdir [file dirname $argv0] |
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51 | source $testdir/tester.tcl |
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52 | |||
53 | ifcapable !pager_pragmas { |
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54 | finish_test |
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55 | return |
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56 | } |
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57 | |||
58 | sqlite3_extended_result_codes $::DB 1 |
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59 | |||
60 | # Aquire a read-lock on the database using handle [db2]. |
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61 | # |
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62 | proc read_lock_db {} { |
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63 | if {$::STMT eq ""} { |
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64 | set ::STMT [sqlite3_prepare db2 {SELECT rowid FROM sqlite_master} -1 TAIL] |
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65 | set rc [sqlite3_step $::STMT] |
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66 | if {$rc eq "SQLITE_ERROR"} { |
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67 | unread_lock_db |
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68 | read_lock_db |
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69 | } |
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70 | } |
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71 | } |
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72 | |||
73 | # Release any read-lock obtained using [read_lock_db] |
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74 | # |
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75 | proc unread_lock_db {} { |
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76 | if {$::STMT ne ""} { |
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77 | sqlite3_finalize $::STMT |
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78 | set ::STMT "" |
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79 | } |
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80 | } |
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81 | |||
82 | # Open the db handle used by [read_lock_db]. |
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83 | # |
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84 | sqlite3 db2 test.db |
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85 | set ::STMT "" |
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86 | |||
87 | do_test tkt2409-1.1 { |
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88 | execsql { |
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89 | PRAGMA cache_size=10; |
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90 | CREATE TABLE t1(x TEXT UNIQUE NOT NULL, y BLOB); |
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91 | } |
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92 | read_lock_db |
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93 | set ::zShort [string repeat 0123456789 1] |
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94 | set ::zLong [string repeat 0123456789 1500] |
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95 | catchsql { |
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96 | BEGIN; |
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97 | INSERT INTO t1 VALUES($::zShort, $::zLong); |
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98 | } |
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99 | } {0 {}} |
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100 | |||
101 | do_test tkt2409-1.2 { |
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102 | sqlite3_errcode $::DB |
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103 | } {SQLITE_OK} |
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104 | |||
105 | # Check the integrity of the cache. |
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106 | # |
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107 | integrity_check tkt2409-1.3 |
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108 | |||
109 | # Check that the transaction was rolled back. Because the INSERT |
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110 | # statement in which the "I/O error" occured did not open a statement |
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111 | # transaction, SQLite had no choice but to roll back the transaction. |
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112 | # |
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113 | do_test tkt2409-1.4 { |
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114 | unread_lock_db |
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115 | catchsql { ROLLBACK } |
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116 | } {0 {}} |
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117 | |||
118 | set ::zShort [string repeat 0123456789 1] |
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119 | set ::zLong [string repeat 0123456789 1500] |
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120 | set ::rc 1 |
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121 | for {set iCache 10} {$::rc} {incr iCache} { |
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122 | execsql "PRAGMA cache_size = $iCache" |
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123 | do_test tkt2409-2.1.$iCache { |
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124 | read_lock_db |
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125 | set ::rc [catch { |
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126 | execsql { |
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127 | BEGIN; |
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128 | INSERT INTO t1 VALUES($::zShort, $::zLong); |
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129 | } |
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130 | } msg] |
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131 | expr {($::rc == 1 && $msg eq "disk I/O error") || $::rc == 0} |
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132 | } {1} |
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133 | } |
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134 | |||
135 | do_test tkt2409-2.2 { |
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136 | catchsql { |
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137 | ROLLBACK; |
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138 | BEGIN; |
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139 | INSERT INTO t1 VALUES($::zShort, $::zLong); |
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140 | COMMIT; |
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141 | } |
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142 | } {1 {database is locked}} |
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143 | |||
144 | do_test tkt2409-2.3 { |
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145 | unread_lock_db |
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146 | catchsql { |
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147 | COMMIT; |
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148 | } |
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149 | } {0 {}} |
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150 | |||
151 | |||
152 | do_test tkt2409-3.1 { |
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153 | db close |
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154 | set ::DB [sqlite3 db test.db; sqlite3_connection_pointer db] |
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155 | sqlite3_extended_result_codes $::DB 1 |
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156 | execsql { |
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157 | PRAGMA cache_size=10; |
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158 | DELETE FROM t1; |
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159 | } |
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160 | read_lock_db |
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161 | set ::zShort [string repeat 0123456789 1] |
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162 | set ::zLong [string repeat 0123456789 1500] |
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163 | catchsql { |
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164 | BEGIN; |
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165 | INSERT INTO t1 SELECT $::zShort, $::zLong; |
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166 | } |
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167 | } {0 {}} |
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168 | |||
169 | do_test tkt2409-3.2 { |
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170 | sqlite3_errcode $::DB |
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171 | } {SQLITE_OK} |
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172 | |||
173 | # Check the integrity of the cache. |
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174 | # |
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175 | integrity_check tkt2409-3.3 |
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176 | |||
177 | # Check that the transaction was rolled back. Because the INSERT |
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178 | # statement in which the "I/O error" occured did not open a statement |
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179 | # transaction, SQLite had no choice but to roll back the transaction. |
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180 | # |
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181 | do_test tkt2409-3.4 { |
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182 | unread_lock_db |
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183 | catchsql { ROLLBACK } |
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184 | } {0 {}} |
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185 | integrity_check tkt2409-3.5 |
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186 | |||
187 | expr {srand(1)} |
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188 | do_test tkt2409-4.1 { |
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189 | execsql { |
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190 | PRAGMA cache_size=20; |
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191 | DROP TABLE t1; |
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192 | CREATE TABLE t1 (x TEXT UNIQUE NOT NULL); |
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193 | } |
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194 | |||
195 | unset -nocomplain t1 |
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196 | array unset t1 |
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197 | set t1(0) 1 |
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198 | set sql "" |
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199 | for {set i 0} {$i<5000} {incr i} { |
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200 | set r 0 |
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201 | while {[info exists t1($r)]} { |
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202 | set r [expr {int(rand()*1000000000)}] |
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203 | } |
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204 | set t1($r) 1 |
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205 | append sql "INSERT INTO t1 VALUES('some-text-$r');" |
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206 | } |
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207 | |||
208 | read_lock_db |
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209 | execsql BEGIN |
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210 | catchsql $sql |
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211 | } {0 {}} |
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212 | |||
213 | do_test tkt2409-4.2 { |
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214 | sqlite3_errcode $::DB |
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215 | } {SQLITE_OK} |
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216 | |||
217 | # Check the integrity of the cache. |
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218 | # |
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219 | integrity_check tkt2409-4.3 |
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220 | |||
221 | do_test tkt2409-4.4 { |
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222 | catchsql { ROLLBACK } |
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223 | } {0 {}} |
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224 | integrity_check tkt2409-4.5 |
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225 | |||
226 | unread_lock_db |
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227 | db2 close |
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228 | unset -nocomplain t1 |
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229 | finish_test |