#
#***********************************************************************
# 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: corrupt2.test,v 1.6 2008/07/07 15:39:11 danielk1977 Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# The following tests - corrupt2-1.* - create some databases corrupted in
# specific ways and ensure that SQLite detects them as corrupt.
#
................................................................................
  puts -nonewline $fd "\00\00\00\00" 
  close $fd

  sqlite3 db2 corrupt.db 
  catchsql {
    DROP TABLE t1;
  } db2
} {1 {malformed database schema (a3) - index a3 already exists}}


















db2 close
































finish_test

#
#***********************************************************************
# 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: corrupt2.test,v 1.7 2008/07/07 17:04:23 danielk1977 Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# The following tests - corrupt2-1.* - create some databases corrupted in
# specific ways and ensure that SQLite detects them as corrupt.
#
................................................................................
  puts -nonewline $fd "\00\00\00\00" 
  close $fd

  sqlite3 db2 corrupt.db 
  catchsql {
    DROP TABLE t1;
  } db2
} {1 {database disk image is malformed}}

do_test corrupt2-4.1 {
  file delete -force corrupt.db
  file delete -force corrupt.db-journal
  sqlite3 db2 corrupt.db 

  execsql {
    PRAGMA page_size = 1024;
    CREATE TABLE t1(a, b, c);
    CREATE TABLE t2(a, b, c);
    INSERT INTO t2 VALUES(randomblob(100), randomblob(100), randomblob(100));
    INSERT INTO t2 SELECT * FROM t2;
    INSERT INTO t2 SELECT * FROM t2;
    INSERT INTO t2 SELECT * FROM t2;
    INSERT INTO t2 SELECT * FROM t2;
    INSERT INTO t1 SELECT * FROM t2;
  } db2

  db2 close

  # This block links a page from table t2 into the t1 table structure.
  #
  set fd [open corrupt.db r+]
  fconfigure $fd -encoding binary -translation binary
  seek $fd [expr 1024 + 12]
  set zCelloffset [read $fd 2]
  binary scan $zCelloffset S iCelloffset
  seek $fd [expr 1024 + $iCelloffset]
  set zChildPage [read $fd 4]
  seek $fd [expr 2*1024 + 12]
  set zCelloffset [read $fd 2]
  binary scan $zCelloffset S iCelloffset
  seek $fd [expr 2*1024 + $iCelloffset]
  puts -nonewline $fd $zChildPage
  close $fd

  sqlite3 db2 corrupt.db 
  db2 eval {SELECT rowid FROM t1} {
    set result [db2 eval {pragma integrity_check}]
    break
  }
  set result
} {{*** in database main ***
Page 10: sqlite3BtreeInitPage() returns error code 11
On tree page 3 cell 1: Child page depth differs
On tree page 2 cell 0: 2nd reference to page 10
On tree page 2 cell 1: Child page depth differs
Page 4 is never used}}

db2 close

finish_test