wasCSharpSQLite – Blame information for rev 7
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Rev | Author | Line No. | Line |
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1 | office | 1 | # 2007 March 24 |
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 | # $Id: exclusive2.test,v 1.10 2008/11/27 02:22:11 drh Exp $ |
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14 | |||
15 | set testdir [file dirname $argv0] |
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16 | source $testdir/tester.tcl |
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17 | |||
18 | # Do not use a codec for tests in this file, as the database file is |
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19 | # manipulated directly using tcl scripts (using the [hexio_write] command). |
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20 | # |
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21 | do_not_use_codec |
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22 | |||
23 | ifcapable {!pager_pragmas} { |
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24 | finish_test |
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25 | return |
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26 | } |
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27 | |||
28 | # This module does not work right if the cache spills at unexpected |
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29 | # moments. So disable the soft-heap-limit. |
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30 | # |
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31 | sqlite3_soft_heap_limit 0 |
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32 | |||
33 | proc pagerChangeCounter {filename new {fd ""}} { |
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34 | if {$fd==""} { |
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35 | set fd [open $filename RDWR] |
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36 | fconfigure $fd -translation binary -encoding binary |
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37 | set needClose 1 |
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38 | } else { |
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39 | set needClose 0 |
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40 | } |
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41 | if {$new ne ""} { |
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42 | seek $fd 24 |
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43 | set a [expr {($new&0xFF000000)>>24}] |
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44 | set b [expr {($new&0x00FF0000)>>16}] |
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45 | set c [expr {($new&0x0000FF00)>>8}] |
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46 | set d [expr {($new&0x000000FF)}] |
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47 | puts -nonewline $fd [binary format cccc $a $b $c $d] |
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48 | flush $fd |
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49 | } |
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50 | |||
51 | seek $fd 24 |
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52 | foreach {a b c d} [list 0 0 0 0] {} |
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53 | binary scan [read $fd 4] cccc a b c d |
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54 | set ret [expr ($a&0x000000FF)<<24] |
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55 | incr ret [expr ($b&0x000000FF)<<16] |
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56 | incr ret [expr ($c&0x000000FF)<<8] |
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57 | incr ret [expr ($d&0x000000FF)<<0] |
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58 | |||
59 | if {$needClose} {close $fd} |
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60 | return $ret |
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61 | } |
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62 | |||
63 | proc readPagerChangeCounter {filename} { |
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64 | set fd [open $filename RDONLY] |
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65 | fconfigure $fd -translation binary -encoding binary |
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66 | |||
67 | seek $fd 24 |
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68 | foreach {a b c d} [list 0 0 0 0] {} |
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69 | binary scan [read $fd 4] cccc a b c d |
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70 | set ret [expr ($a&0x000000FF)<<24] |
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71 | incr ret [expr ($b&0x000000FF)<<16] |
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72 | incr ret [expr ($c&0x000000FF)<<8] |
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73 | incr ret [expr ($d&0x000000FF)<<0] |
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74 | |||
75 | close $fd |
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76 | return $ret |
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77 | } |
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78 | |||
79 | |||
80 | proc t1sig {{db db}} { |
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81 | execsql {SELECT count(*), md5sum(a) FROM t1} $db |
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82 | } |
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83 | do_test exclusive2-1.0 { |
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84 | readPagerChangeCounter test.db |
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85 | } {0} |
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86 | |||
87 | #----------------------------------------------------------------------- |
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88 | # The following tests - exclusive2-1.X - check that: |
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89 | # |
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90 | # 1-3: Build a database with connection 1, calculate a signature. |
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91 | # 4-7: Modify the database using a second connection in a way that |
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92 | # does not modify the freelist, then reset the pager change-counter |
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93 | # to the value it had before the modifications. |
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94 | # 8: Check that using the first connection, the database signature |
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95 | # is still the same. This is because it uses the in-memory cache. |
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96 | # It can't tell the db has changed because we reset the change-counter. |
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97 | # 9: Increment the change-counter. |
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98 | # 10: Ensure that the first connection now sees the updated database. It |
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99 | # sees the change-counter has been incremented and discards the |
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100 | # invalid in-memory cache. |
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101 | # |
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102 | # This will only work if the database cache is large enough to hold |
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103 | # the entire database. In the case of 1024 byte pages, this means |
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104 | # the cache size must be at least 17. Otherwise, some pages will be |
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105 | # loaded from the database file in step 8. |
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106 | # |
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107 | # For similar reasons, this test does not work with the memsubsys1 permutation. |
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108 | # Permutation memsubsys1 configures the pcache subsystem to use a static |
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109 | # allocation of 24 pages (shared between all pagers). This is not enough for |
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110 | # this test. |
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111 | # |
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112 | do_test exclusive2-1.1 { |
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113 | execsql { |
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114 | BEGIN; |
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115 | CREATE TABLE t1(a, b); |
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116 | INSERT INTO t1(a) VALUES(randstr(10, 400)); |
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117 | INSERT INTO t1(a) VALUES(randstr(10, 400)); |
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118 | INSERT INTO t1(a) SELECT randstr(10, 400) FROM t1; |
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119 | INSERT INTO t1(a) SELECT randstr(10, 400) FROM t1; |
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120 | INSERT INTO t1(a) SELECT randstr(10, 400) FROM t1; |
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121 | INSERT INTO t1(a) SELECT randstr(10, 400) FROM t1; |
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122 | INSERT INTO t1(a) SELECT randstr(10, 400) FROM t1; |
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123 | COMMIT; |
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124 | SELECT count(*) FROM t1; |
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125 | } |
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126 | } {64} |
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127 | do_test exclusive2-1.2.1 { |
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128 | # Make sure the pager cache is large enough to store the |
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129 | # entire database. |
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130 | set nPage [expr [file size test.db]/1024] |
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131 | if {$::SQLITE_DEFAULT_CACHE_SIZE < $nPage} { |
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132 | execsql "PRAGMA cache_size = $nPage" |
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133 | } |
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134 | expr {[execsql {PRAGMA cache_size}] >= $nPage} |
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135 | } {1} |
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136 | do_test exclusive2-1.2 { |
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137 | set ::sig [t1sig] |
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138 | readPagerChangeCounter test.db |
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139 | } {1} |
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140 | do_test exclusive2-1.3 { |
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141 | t1sig |
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142 | } $::sig |
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143 | do_test exclusive2-1.4 { |
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144 | sqlite3 db2 test.db |
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145 | t1sig db2 |
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146 | } $::sig |
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147 | do_test exclusive2-1.5 { |
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148 | execsql { |
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149 | UPDATE t1 SET b=a, a=NULL; |
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150 | } db2 |
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151 | expr {[t1sig db2] eq $::sig} |
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152 | } 0 |
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153 | do_test exclusive2-1.6 { |
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154 | readPagerChangeCounter test.db |
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155 | } {2} |
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156 | do_test exclusive2-1.7 { |
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157 | pagerChangeCounter test.db 1 |
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158 | } {1} |
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159 | if {[permutation] != "memsubsys1"} { |
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160 | do_test exclusive2-1.9 { |
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161 | t1sig |
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162 | expr {[t1sig] eq $::sig} |
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163 | } {1} |
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164 | } |
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165 | do_test exclusive2-1.10 { |
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166 | pagerChangeCounter test.db 2 |
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167 | } {2} |
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168 | do_test exclusive2-1.11 { |
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169 | expr {[t1sig] eq $::sig} |
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170 | } {0} |
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171 | db2 close |
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172 | |||
173 | #-------------------------------------------------------------------- |
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174 | # These tests - exclusive2-2.X - are similar to exclusive2-1.X, |
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175 | # except that they are run with locking_mode=EXCLUSIVE. |
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176 | # |
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177 | # 1-3: Build a database with exclusive-access connection 1, |
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178 | # calculate a signature. |
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179 | # 4: Corrupt the database by writing 10000 bytes of garbage |
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180 | # starting at the beginning of page 2. Check that connection 1 |
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181 | # still works. It should be accessing the in-memory cache. |
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182 | # 5-6: Modify the dataase change-counter. Connection 1 still works |
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183 | # entirely from in-memory cache, because it doesn't check the |
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184 | # change-counter. |
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185 | # 7-8 Set the locking-mode back to normal. After the db is unlocked, |
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186 | # SQLite detects the modified change-counter and discards the |
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187 | # in-memory cache. Then it finds the corruption caused in step 4.... |
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188 | # |
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189 | # As above, this test is only applicable if the pager cache is |
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190 | # large enough to hold the entire database. With 1024 byte pages, |
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191 | # this means 19 pages. We also need to disable the soft-heap-limit |
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192 | # to prevent memory-induced cache spills. |
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193 | # |
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194 | do_test exclusive2-2.1 { |
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195 | execsql {PRAGMA cache_size=1000;} |
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196 | execsql {PRAGMA locking_mode = exclusive;} |
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197 | execsql { |
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198 | BEGIN; |
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199 | DELETE FROM t1; |
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200 | INSERT INTO t1(a) VALUES(randstr(10, 400)); |
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201 | INSERT INTO t1(a) VALUES(randstr(10, 400)); |
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202 | INSERT INTO t1(a) SELECT randstr(10, 400) FROM t1; |
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203 | INSERT INTO t1(a) SELECT randstr(10, 400) FROM t1; |
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204 | INSERT INTO t1(a) SELECT randstr(10, 400) FROM t1; |
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205 | INSERT INTO t1(a) SELECT randstr(10, 400) FROM t1; |
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206 | INSERT INTO t1(a) SELECT randstr(10, 400) FROM t1; |
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207 | COMMIT; |
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208 | SELECT count(*) FROM t1; |
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209 | } |
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210 | } {64} |
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211 | do_test exclusive2-2.2.1 { |
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212 | # Make sure the pager cache is large enough to store the |
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213 | # entire database. |
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214 | set nPage [expr [file size test.db]/1024] |
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215 | if {$::SQLITE_DEFAULT_CACHE_SIZE < $nPage} { |
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216 | execsql "PRAGMA cache_size = $nPage" |
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217 | } |
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218 | expr {[execsql {PRAGMA cache_size}] >= $nPage} |
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219 | } {1} |
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220 | do_test exclusive2-2.2 { |
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221 | set ::sig [t1sig] |
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222 | readPagerChangeCounter test.db |
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223 | } {3} |
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224 | do_test exclusive2-2.3 { |
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225 | t1sig |
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226 | } $::sig |
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227 | |||
228 | do_test exclusive2-2.4 { |
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229 | set ::fd [open test.db RDWR] |
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230 | fconfigure $::fd -translation binary |
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231 | seek $::fd 1024 |
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232 | puts -nonewline $::fd [string repeat [binary format c 0] 10000] |
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233 | flush $::fd |
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234 | t1sig |
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235 | } $::sig |
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236 | |||
237 | do_test exclusive2-2.5 { |
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238 | pagerChangeCounter test.db 5 $::fd |
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239 | } {5} |
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240 | do_test exclusive2-2.6 { |
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241 | t1sig |
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242 | } $::sig |
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243 | do_test exclusive2-2.7 { |
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244 | execsql {PRAGMA locking_mode = normal} |
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245 | t1sig |
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246 | } $::sig |
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247 | |||
248 | do_test exclusive2-2.8 { |
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249 | set rc [catch {t1sig} msg] |
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250 | list $rc $msg |
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251 | } {1 {database disk image is malformed}} |
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252 | |||
253 | #-------------------------------------------------------------------- |
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254 | # These tests - exclusive2-3.X - verify that the pager change-counter |
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255 | # is only incremented by the first change when in exclusive access |
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256 | # mode. In normal mode, the change-counter is incremented once |
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257 | # per write-transaction. |
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258 | # |
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259 | |||
260 | db close |
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261 | catch {close $::fd} |
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262 | file delete -force test.db |
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263 | file delete -force test.db-journal |
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264 | |||
265 | do_test exclusive2-3.0 { |
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266 | sqlite3 db test.db |
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267 | execsql { |
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268 | BEGIN; |
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269 | CREATE TABLE t1(a UNIQUE); |
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270 | INSERT INTO t1 VALUES(randstr(200, 200)); |
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271 | INSERT INTO t1 VALUES(randstr(200, 200)); |
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272 | COMMIT; |
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273 | } |
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274 | readPagerChangeCounter test.db |
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275 | } {1} |
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276 | do_test exclusive2-3.1 { |
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277 | execsql { |
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278 | INSERT INTO t1 VALUES(randstr(200, 200)); |
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279 | } |
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280 | readPagerChangeCounter test.db |
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281 | } {2} |
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282 | do_test exclusive2-3.2 { |
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283 | execsql { |
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284 | INSERT INTO t1 VALUES(randstr(200, 200)); |
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285 | } |
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286 | readPagerChangeCounter test.db |
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287 | } {3} |
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288 | do_test exclusive2-3.3 { |
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289 | execsql { |
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290 | PRAGMA locking_mode = exclusive; |
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291 | INSERT INTO t1 VALUES(randstr(200, 200)); |
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292 | } |
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293 | readPagerChangeCounter test.db |
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294 | } {4} |
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295 | do_test exclusive2-3.4 { |
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296 | breakpoint |
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297 | execsql { |
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298 | INSERT INTO t1 VALUES(randstr(200, 200)); |
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299 | } |
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300 | readPagerChangeCounter test.db |
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301 | } {4} |
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302 | do_test exclusive2-3.5 { |
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303 | execsql { |
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304 | PRAGMA locking_mode = normal; |
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305 | INSERT INTO t1 VALUES(randstr(200, 200)); |
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306 | } |
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307 | readPagerChangeCounter test.db |
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308 | } {4} |
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309 | do_test exclusive2-3.6 { |
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310 | execsql { |
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311 | INSERT INTO t1 VALUES(randstr(200, 200)); |
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312 | } |
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313 | readPagerChangeCounter test.db |
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314 | } {5} |
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315 | sqlite3_soft_heap_limit $cmdlinearg(soft-heap-limit) |
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316 | |||
317 | finish_test |