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author | Hans-Christoph Steiner <hans@eds.org> | 2012-03-30 20:42:12 -0400 |
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committer | Hans-Christoph Steiner <hans@eds.org> | 2012-03-30 20:42:12 -0400 |
commit | 7bb481fda9ecb134804b49c2ce77ca28f7eea583 (patch) | |
tree | 31b520b9914d3e2453968abe375f2c102772c3dc /test/corrupt4.test |
Imported Upstream version 2.0.3
Diffstat (limited to 'test/corrupt4.test')
-rw-r--r-- | test/corrupt4.test | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/test/corrupt4.test b/test/corrupt4.test new file mode 100644 index 0000000..1906113 --- /dev/null +++ b/test/corrupt4.test @@ -0,0 +1,79 @@ +# 2007 Sept 7 +# +# The author disclaims copyright to this source code. In place of +# a legal notice, here is a blessing: +# +# May you do good and not evil. +# May you find forgiveness for yourself and forgive others. +# May you share freely, never taking more than you give. +# +#*********************************************************************** +# This file implements regression tests for SQLite library. +# +# This file implements tests to make sure SQLite does not crash or +# segfault if it sees a corrupt database file. +# +# $Id: corrupt4.test,v 1.1 2007/09/07 14:32:07 drh Exp $ + +set testdir [file dirname $argv0] +source $testdir/tester.tcl + +# Do not use a codec for tests in this file, as the database file is +# manipulated directly using tcl scripts (using the [hexio_write] command). +# +do_not_use_codec + +# We must have the page_size pragma for these tests to work. +# +ifcapable !pager_pragmas { + finish_test + return +} + +# Create a database with a freelist containing at least two pages. +# +do_test corrupt4-1.1 { + set bigstring [string repeat 0123456789 200] + execsql { + PRAGMA auto_vacuum=OFF; + PRAGMA page_size=1024; + CREATE TABLE t1(x); + INSERT INTO t1 VALUES($bigstring); + CREATE TABLE t2(y); + INSERT INTO t2 VALUES(1); + DROP TABLE t1; + } + file size test.db +} [expr {1024*4}] + +# Verify that there are two pages on the freelist. +# +do_test corrupt4-1.2 { + execsql {PRAGMA freelist_count} +} {2} + +# Get the page number for the trunk of the freelist. +# +set trunkpgno [hexio_get_int [hexio_read test.db 32 4]] +set baseaddr [expr {($trunkpgno-1)*1024}] + +# Verify that the trunk of the freelist has exactly one +# leaf. +# +do_test corrupt4-1.3 { + hexio_get_int [hexio_read test.db [expr {$::baseaddr+4}] 4] +} {1} + +# Insert a negative number as the number of leaves on the trunk. +# Then try to add a new element to the freelist. +# +do_test corrupt4-1.4 { + hexio_write test.db [expr {$::baseaddr+4}] [hexio_render_int32 -100000000] + db close + sqlite3 db test.db + catchsql { + DROP TABLE t2 + } +} {1 {database disk image is malformed}} + +finish_test |