wasCSharpSQLite – Blame information for rev 7
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1 | office | 1 | # 2007 Sept 7 |
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. |
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15 | # |
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16 | # $Id: corrupt4.test,v 1.1 2007/09/07 14:32:07 drh Exp $ |
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17 | |||
18 | set testdir [file dirname $argv0] |
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19 | source $testdir/tester.tcl |
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20 | |||
21 | # Do not use a codec for tests in this file, as the database file is |
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22 | # manipulated directly using tcl scripts (using the [hexio_write] command). |
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23 | # |
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24 | do_not_use_codec |
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25 | |||
26 | # We must have the page_size pragma for these tests to work. |
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27 | # |
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28 | ifcapable !pager_pragmas { |
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29 | finish_test |
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30 | return |
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31 | } |
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32 | |||
33 | # Create a database with a freelist containing at least two pages. |
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34 | # |
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35 | do_test corrupt4-1.1 { |
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36 | set bigstring [string repeat 0123456789 200] |
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37 | execsql { |
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38 | PRAGMA auto_vacuum=OFF; |
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39 | PRAGMA page_size=1024; |
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40 | CREATE TABLE t1(x); |
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41 | INSERT INTO t1 VALUES($bigstring); |
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42 | CREATE TABLE t2(y); |
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43 | INSERT INTO t2 VALUES(1); |
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44 | DROP TABLE t1; |
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45 | } |
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46 | file size test.db |
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47 | } [expr {1024*4}] |
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48 | |||
49 | # Verify that there are two pages on the freelist. |
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50 | # |
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51 | do_test corrupt4-1.2 { |
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52 | execsql {PRAGMA freelist_count} |
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53 | } {2} |
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54 | |||
55 | # Get the page number for the trunk of the freelist. |
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56 | # |
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57 | set trunkpgno [hexio_get_int [hexio_read test.db 32 4]] |
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58 | set baseaddr [expr {($trunkpgno-1)*1024}] |
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59 | |||
60 | # Verify that the trunk of the freelist has exactly one |
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61 | # leaf. |
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62 | # |
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63 | do_test corrupt4-1.3 { |
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64 | hexio_get_int [hexio_read test.db [expr {$::baseaddr+4}] 4] |
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65 | } {1} |
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66 | |||
67 | # Insert a negative number as the number of leaves on the trunk. |
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68 | # Then try to add a new element to the freelist. |
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69 | # |
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70 | do_test corrupt4-1.4 { |
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71 | hexio_write test.db [expr {$::baseaddr+4}] [hexio_render_int32 -100000000] |
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72 | db close |
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73 | sqlite3 db test.db |
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74 | catchsql { |
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75 | DROP TABLE t2 |
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76 | } |
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77 | } {1 {database disk image is malformed}} |
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78 | |||
79 | finish_test |