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Overview
Comment:Add some test cases simulating crashes with various storage medium sector sizes. (CVS 3704)
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SHA1: c3c5f658cf9c69b6e81e63fbde5dd0a854be9fc7
User & Date: danielk1977 2007-03-19 15:04:54.000
Context
2007-03-19
17:44
Modify the interface to the pager sub-system in preparation for performing IO in blocks based on sector-size, not database page-size. (CVS 3705) (check-in: 7dc7658887 user: danielk1977 tags: trunk)
15:04
Add some test cases simulating crashes with various storage medium sector sizes. (CVS 3704) (check-in: c3c5f658cf user: danielk1977 tags: trunk)
13:53
Fix some problems with test cases in shared_err.test. Also a real bug causing a segfault after an IO error in pager.c. (CVS 3703) (check-in: 9f62ef1ec3 user: danielk1977 tags: trunk)
Changes
Side-by-Side Diff Ignore Whitespace Patch
Changes to test/crash2.test.
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#
# 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 1.2 2007/03/19 05:54:50 danielk1977 Exp $
# $Id: crash2.test,v 1.3 2007/03/19 15:04:54 danielk1977 Exp $

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

ifcapable !crashtest {
  finish_test
  return
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    crashsql -file test.db -blocksize 2048 "
      [string repeat {SELECT random();} $ii]
      CREATE TABLE hij(h, i, j);
    "
    db eval {PRAGMA integrity_check}
  } {ok}
}

proc signature {} {
  return [db eval {SELECT count(*), md5sum(a), md5sum(b), md5sum(c) FROM abc}]
}

# Test case for crashing during journal sync with simulated
# sector-size values from 1024 to 8192.
#
do_test crash2-2.0 {
  execsql BEGIN
  for {set n 0} {$n < 1000} {incr n} {
    execsql "INSERT INTO abc VALUES($n, [expr 2*$n], [expr 3*$n])"
  }
  execsql {
    INSERT INTO abc SELECT * FROM abc;
    INSERT INTO abc SELECT * FROM abc;
    INSERT INTO abc SELECT * FROM abc;
    INSERT INTO abc SELECT * FROM abc;
    INSERT INTO abc SELECT * FROM abc;
  }
  execsql COMMIT
  expr ([file size test.db] / 1024) > 450
} {1}
for {set i 1} {$i < 30} {incr i} {
  set sig [signature]
  set sector [expr 1024 * 1<<($i%4)]
  do_test crash-2.$i.1 {
     crashsql -blocksize $sector -delay [expr $i%5 + 1] -file test.db-journal "
       BEGIN;
       SELECT random() FROM abc LIMIT $i;
       INSERT INTO abc SELECT randstr(10,10), 0, 0 FROM abc WHERE random()%2==0;
       DELETE FROM abc WHERE random()%2!=0;
       COMMIT;
     "
  } {1 {child process exited abnormally}}
  do_test crash-2.$i.2 {
    signature
  } $sig
} 


# Test case for crashing during database sync with simulated
# sector-size values from 1024 to 8192.
#
for {set i 1} {$i < 10} {incr i} {
  set sig [signature]
  set sector [expr 1024 * 1<<($i%4)]
  do_test crash-3.$i.1 {
     crashsql -blocksize $sector -file test.db "
       BEGIN;
       SELECT random() FROM abc LIMIT $i;
       INSERT INTO abc SELECT randstr(10,10), 0, 0 FROM abc WHERE random()%2==0;
       DELETE FROM abc WHERE random()%2!=0;
       COMMIT;
     "
  } {1 {child process exited abnormally}}
  do_test crash-3.$i.2 {
    signature
  } $sig
} 

finish_test