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Comment:Add crash2.test, for robustness testing with variable disk block size. (CVS 3696)
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SHA1:b0f8203dbbf1036418a2dcc480f352f761826194
User & Date: danielk1977 2007-03-17 10:28:05
Context
2007-03-17
13:27
First cut at an implementation of the REPLACE() function. We might yet make this a compile-time option or move it into a separate source file. (CVS 3697) check-in: c2fe746e user: drh tags: trunk
10:28
Add crash2.test, for robustness testing with variable disk block size. (CVS 3696) check-in: b0f8203d user: danielk1977 tags: trunk
10:26
Modifications to crash-test infrastructure. (CVS 3695) check-in: c4be8d99 user: danielk1977 tags: trunk
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Added test/crash2.test.

































































































































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# 2001 September 15
#
# 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.
#
# The focus of this file is testing the ability of the database to
# uses its rollback journal to recover intact (no database corruption)
# from a power failure during the middle of a COMMIT. Even more
# specifically, the tests in this file verify this functionality
# for storage mediums with various sector sizes.
#
# $Id: crash2.test,v 1.1 2007/03/17 10:28:05 danielk1977 Exp $

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

ifcapable !crashtest {
  finish_test
  return
}

# This test is designed to check that the crash-test infrastructure
# can create files that do not consist of an integer number of
# simulated disk blocks (i.e. 3KB file using 2KB disk blocks).
#
do_test crash2-1.1 {
  crashsql -delay 500 -file test.db -blocksize 2048 {
    BEGIN;
    CREATE TABLE abc AS SELECT 1 AS a, 2 AS b, 3 AS c;
    CREATE TABLE def AS SELECT 1 AS d, 2 AS e, 3 AS f;
    COMMIT;
  }
  file size test.db
} {3072}

for {set ii 0} {$ii < 5} {incr ii} {

  # Simple test using the database created above: Create a new
  # table so that page 1 and page 4 are modified. Using a
  # block-size of 2048 and page-size of 1024, this means
  # pages 2 and 3 must also be saved in the journal to avoid
  # risking corruption.
  #
  # The loop is so that this test can be run with a couple
  # of different seeds for the random number generator.
  #
  do_test crash2-1.2.$ii {
    crashsql -file test.db -blocksize 2048 "
      [string repeat {SELECT random();} $ii]
      CREATE TABLE hij(h, i, j);
    "
    db eval {PRAGMA integrity_check}
  } {ok}
}

finish_test