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Side by Side Diff: third_party/sqlite/test/corrupt4.test

Issue 3108030: Move bundled copy of sqlite one level deeper to better separate it... (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Created 10 years, 4 months ago
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1 # 2007 Sept 7
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.
12 #
13 # This file implements tests to make sure SQLite does not crash or
14 # segfault if it sees a corrupt database file.
15 #
16 # $Id: corrupt4.test,v 1.1 2007/09/07 14:32:07 drh Exp $
17
18 set testdir [file dirname $argv0]
19 source $testdir/tester.tcl
20
21 # We must have the page_size pragma for these tests to work.
22 #
23 ifcapable !pager_pragmas {
24 finish_test
25 return
26 }
27
28 # Create a database with a freelist containing at least two pages.
29 #
30 do_test corrupt4-1.1 {
31 set bigstring [string repeat 0123456789 200]
32 execsql {
33 PRAGMA auto_vacuum=OFF;
34 PRAGMA page_size=1024;
35 CREATE TABLE t1(x);
36 INSERT INTO t1 VALUES($bigstring);
37 CREATE TABLE t2(y);
38 INSERT INTO t2 VALUES(1);
39 DROP TABLE t1;
40 }
41 file size test.db
42 } [expr {1024*4}]
43
44 # Verify that there are two pages on the freelist.
45 #
46 do_test corrupt4-1.2 {
47 execsql {PRAGMA freelist_count}
48 } {2}
49
50 # Get the page number for the trunk of the freelist.
51 #
52 set trunkpgno [hexio_get_int [hexio_read test.db 32 4]]
53 set baseaddr [expr {($trunkpgno-1)*1024}]
54
55 # Verify that the trunk of the freelist has exactly one
56 # leaf.
57 #
58 do_test corrupt4-1.3 {
59 hexio_get_int [hexio_read test.db [expr {$::baseaddr+4}] 4]
60 } {1}
61
62 # Insert a negative number as the number of leaves on the trunk.
63 # Then try to add a new element to the freelist.
64 #
65 do_test corrupt4-1.4 {
66 hexio_write test.db [expr {$::baseaddr+4}] [hexio_render_int32 -100000000]
67 db close
68 sqlite3 db test.db
69 catchsql {
70 DROP TABLE t2
71 }
72 } {1 {database disk image is malformed}}
73
74 finish_test
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