81 lines
2.1 KiB
Plaintext
81 lines
2.1 KiB
Plaintext
# 2015-03-30
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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# Corruption consisting of a database page that thinks it is a child
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# of itself.
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set testprefix corruptJ
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if {[permutation]=="mmap"} {
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finish_test
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return
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}
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# Do not use a codec for tests in this file, as the database file is
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# manipulated directly using tcl scripts (using the [hexio_write] command).
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#
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do_not_use_codec
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database_may_be_corrupt
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# Initialize the database.
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#
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do_execsql_test 1.1 {
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PRAGMA page_size=1024;
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PRAGMA auto_vacuum=0;
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CREATE TABLE t1(a,b);
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WITH RECURSIVE c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<10)
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INSERT INTO t1(a,b) SELECT i, zeroblob(700) FROM c;
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} {}
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db close
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# Corrupt the root page of the t1 table such that the left-child pointer
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# for the very first cell points back to the root. Then try to DROP the
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# table. The clearDatabasePage() routine should not loop.
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#
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do_test 1.2 {
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hexio_write test.db [expr {2*1024-2}] 02
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sqlite3 db test.db
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catchsql { DROP TABLE t1 }
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} {1 {database disk image is malformed}}
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# Similar test using a WITHOUT ROWID table
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#
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do_test 2.1 {
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db close
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forcedelete test.db
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sqlite3 db test.db
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db eval {
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PRAGMA page_size=1024;
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PRAGMA auto_vacuum=0;
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CREATE TABLE t1(a,b,PRIMARY KEY(a,b)) WITHOUT ROWID;
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WITH RECURSIVE c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<100)
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INSERT INTO t1(a,b) SELECT i, zeroblob(200) FROM c;
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}
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} {}
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# The table is three levels deep. Corrupt the left child of an intermediate
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# page so that it points back to the root page.
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#
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do_test 2.2 {
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db close
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hexio_read test.db [expr {9*1024+391}] 8
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} {00000008814D0401}
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do_test 2.2b {
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hexio_write test.db [expr {9*1024+391}] 00000002
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sqlite3 db test.db
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catchsql { PRAGMA secure_delete=ON; DROP TABLE t1; }
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} {1 {database disk image is malformed}}
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finish_test
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