sqlite/test/sortfault.test

# 2014 March 25.
#
# 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. 
#
# Specifically, it tests the effects of fault injection on the sorter
# module (code in vdbesort.c).
#

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


do_execsql_test 1.0 {
  PRAGMA cache_size = 5;
}

foreach {tn mmap_limit} {
  1 0
  2 100000
} {
  do_faultsim_test 1.$tn -prep {
    sqlite3 db test.db
    sqlite3_test_control SQLITE_TESTCTRL_SORTER_MMAP db $::mmap_limit
  } -body {
    execsql { 
      WITH r(x,y) AS (
          SELECT 1, randomblob(1000)
          UNION ALL
          SELECT x+1, randomblob(1000) FROM r
          LIMIT 500
          )
        SELECT count(x), length(y) FROM r GROUP BY (x%5)
    } 
  } -test {
    faultsim_test_result {0 {100 1000 100 1000 100 1000 100 1000 100 1000}}
  }
}

finish_test