wasCSharpSQLite – Blame information for rev 7
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1 | office | 1 | # 2008 Sep 10 |
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 make sure SQLite does not crash or |
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14 | # segfault if it sees a corrupt database file. It specifically focuses |
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15 | # on loops in the B-Tree structure. A loop is formed in a B-Tree structure |
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16 | # when there exists a page that is both an a descendent or ancestor of |
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17 | # itself. |
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18 | # |
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19 | # Also test that an SQLITE_CORRUPT error is returned if a B-Tree page |
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20 | # contains a (corrupt) reference to a page greater than the configured |
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21 | # maximum page number. |
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22 | # |
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23 | # $Id: corruptB.test,v 1.4 2009/07/21 19:25:24 danielk1977 Exp $ |
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24 | |||
25 | set testdir [file dirname $argv0] |
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26 | source $testdir/tester.tcl |
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27 | |||
28 | # Do not use a codec for tests in this file, as the database file is |
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29 | # manipulated directly using tcl scripts (using the [hexio_write] command). |
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30 | # |
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31 | do_not_use_codec |
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32 | |||
33 | |||
34 | do_test corruptB-1.1 { |
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35 | execsql { |
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36 | PRAGMA auto_vacuum = 1; |
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37 | CREATE TABLE t1(x); |
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38 | INSERT INTO t1 VALUES(randomblob(200)); |
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39 | INSERT INTO t1 SELECT randomblob(200) FROM t1; |
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40 | INSERT INTO t1 SELECT randomblob(200) FROM t1; |
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41 | INSERT INTO t1 SELECT randomblob(200) FROM t1; |
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42 | INSERT INTO t1 SELECT randomblob(200) FROM t1; |
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43 | INSERT INTO t1 SELECT randomblob(200) FROM t1; |
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44 | } |
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45 | expr {[file size test.db] > (1024*9)} |
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46 | } {1} |
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47 | integrity_check corruptB-1.2 |
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48 | |||
49 | file copy -force test.db bak.db |
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50 | |||
51 | # Set the right-child of a B-Tree rootpage to refer to the root-page itself. |
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52 | # |
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53 | do_test corruptB-1.3.1 { |
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54 | set ::root [execsql {SELECT rootpage FROM sqlite_master}] |
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55 | set ::offset [expr {($::root-1)*1024}] |
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56 | hexio_write test.db [expr $offset+8] [hexio_render_int32 $::root] |
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57 | } {4} |
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58 | do_test corruptB-1.3.2 { |
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59 | sqlite3 db test.db |
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60 | catchsql { SELECT * FROM t1 } |
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61 | } {1 {database disk image is malformed}} |
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62 | |||
63 | # Set the left-child of a cell in a B-Tree rootpage to refer to the |
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64 | # root-page itself. |
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65 | # |
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66 | do_test corruptB-1.4.1 { |
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67 | db close |
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68 | file copy -force bak.db test.db |
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69 | set cell_offset [hexio_get_int [hexio_read test.db [expr $offset+12] 2]] |
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70 | hexio_write test.db [expr $offset+$cell_offset] [hexio_render_int32 $::root] |
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71 | } {4} |
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72 | do_test corruptB-1.4.2 { |
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73 | sqlite3 db test.db |
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74 | catchsql { SELECT * FROM t1 } |
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75 | } {1 {database disk image is malformed}} |
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76 | |||
77 | # Now grow the table B-Tree so that it is more than 2 levels high. |
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78 | # |
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79 | do_test corruptB-1.5.1 { |
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80 | db close |
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81 | file copy -force bak.db test.db |
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82 | sqlite3 db test.db |
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83 | execsql { |
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84 | INSERT INTO t1 SELECT randomblob(200) FROM t1; |
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85 | INSERT INTO t1 SELECT randomblob(200) FROM t1; |
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86 | INSERT INTO t1 SELECT randomblob(200) FROM t1; |
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87 | INSERT INTO t1 SELECT randomblob(200) FROM t1; |
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88 | INSERT INTO t1 SELECT randomblob(200) FROM t1; |
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89 | INSERT INTO t1 SELECT randomblob(200) FROM t1; |
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90 | INSERT INTO t1 SELECT randomblob(200) FROM t1; |
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91 | } |
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92 | } {} |
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93 | |||
94 | file copy -force test.db bak.db |
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95 | |||
96 | # Set the right-child pointer of the right-child of the root page to point |
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97 | # back to the root page. |
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98 | # |
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99 | do_test corruptB-1.6.1 { |
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100 | db close |
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101 | set iRightChild [hexio_get_int [hexio_read test.db [expr $offset+8] 4]] |
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102 | set c_offset [expr ($iRightChild-1)*1024] |
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103 | hexio_write test.db [expr $c_offset+8] [hexio_render_int32 $::root] |
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104 | } {4} |
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105 | do_test corruptB-1.6.2 { |
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106 | sqlite3 db test.db |
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107 | catchsql { SELECT * FROM t1 } |
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108 | } {1 {database disk image is malformed}} |
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109 | |||
110 | # Set the left-child pointer of a cell of the right-child of the root page to |
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111 | # point back to the root page. |
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112 | # |
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113 | do_test corruptB-1.7.1 { |
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114 | db close |
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115 | file copy -force bak.db test.db |
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116 | set cell_offset [hexio_get_int [hexio_read test.db [expr $c_offset+12] 2]] |
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117 | hexio_write test.db [expr $c_offset+$cell_offset] [hexio_render_int32 $::root] |
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118 | } {4} |
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119 | do_test corruptB-1.7.2 { |
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120 | sqlite3 db test.db |
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121 | catchsql { SELECT * FROM t1 } |
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122 | } {1 {database disk image is malformed}} |
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123 | |||
124 | do_test corruptB-1.8.1 { |
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125 | db close |
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126 | set cell_offset [hexio_get_int [hexio_read test.db [expr $offset+12] 2]] |
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127 | set iLeftChild [ |
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128 | hexio_get_int [hexio_read test.db [expr $offset+$cell_offset] 4] |
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129 | ] |
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130 | set c_offset [expr ($iLeftChild-1)*1024] |
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131 | hexio_write test.db [expr $c_offset+8] [hexio_render_int32 $::root] |
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132 | } {4} |
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133 | do_test corruptB-1.8.2 { |
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134 | sqlite3 db test.db |
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135 | catchsql { SELECT * FROM t1 } |
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136 | } {1 {database disk image is malformed}} |
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137 | |||
138 | # Set the left-child pointer of a cell of the right-child of the root page to |
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139 | # point back to the root page. |
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140 | # |
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141 | do_test corruptB-1.9.1 { |
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142 | db close |
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143 | file copy -force bak.db test.db |
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144 | set cell_offset [hexio_get_int [hexio_read test.db [expr $c_offset+12] 2]] |
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145 | hexio_write test.db [expr $c_offset+$cell_offset] [hexio_render_int32 $::root] |
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146 | } {4} |
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147 | do_test corruptB-1.9.2 { |
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148 | sqlite3 db test.db |
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149 | catchsql { SELECT * FROM t1 } |
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150 | } {1 {database disk image is malformed}} |
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151 | |||
152 | #--------------------------------------------------------------------------- |
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153 | |||
154 | do_test corruptB-2.1.1 { |
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155 | db close |
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156 | file copy -force bak.db test.db |
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157 | hexio_write test.db [expr $offset+8] [hexio_render_int32 0x6FFFFFFF] |
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158 | } {4} |
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159 | do_test corruptB-2.1.2 { |
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160 | sqlite3 db test.db |
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161 | catchsql { SELECT * FROM t1 } |
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162 | } {1 {database disk image is malformed}} |
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163 | |||
164 | #--------------------------------------------------------------------------- |
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165 | |||
166 | # Corrupt the header-size field of a database record. |
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167 | # |
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168 | do_test corruptB-3.1.1 { |
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169 | db close |
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170 | file copy -force bak.db test.db |
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171 | sqlite3 db test.db |
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172 | set v [string repeat abcdefghij 200] |
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173 | execsql { |
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174 | CREATE TABLE t2(a); |
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175 | INSERT INTO t2 VALUES($v); |
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176 | } |
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177 | set t2_root [execsql {SELECT rootpage FROM sqlite_master WHERE name = 't2'}] |
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178 | set iPage [expr ($t2_root-1)*1024] |
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179 | set iCellarray [expr $iPage + 8] |
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180 | set iRecord [hexio_get_int [hexio_read test.db $iCellarray 2]] |
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181 | db close |
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182 | hexio_write test.db [expr $iPage+$iRecord+3] FF00 |
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183 | } {2} |
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184 | do_test corruptB-3.1.2 { |
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185 | sqlite3 db test.db |
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186 | catchsql { SELECT * FROM t2 } |
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187 | } {1 {database disk image is malformed}} |
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188 | |||
189 | finish_test |