# 2011 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 the session module. 
# 

if {![info exists testdir]} {
  set testdir [file join [file dirname [info script]] .. .. test]
} 
source [file join [file dirname [info script]] session_common.tcl]
source $testdir/tester.tcl
ifcapable !session {finish_test; return}

set testprefix session4

do_test 1.0 {
  execsql {
    CREATE TABLE x(a, b, c, d, e, PRIMARY KEY(c, e));
    INSERT INTO x VALUES(65.21, X'28B0', 16.35, NULL, 'doers');
    INSERT INTO x VALUES(NULL, 78.49, 2, X'60', -66);
    INSERT INTO x VALUES('cathedral', NULL, 35, NULL, X'B220937E80A2D8');
    INSERT INTO x VALUES(NULL, 'masking', -91.37, NULL, X'596D');
    INSERT INTO x VALUES(19, 'domains', 'espouse', -94, 'throw');
  }

  set changeset [changeset_from_sql {
    DELETE FROM x WHERE e = -66;
    UPDATE x SET a = 'parameterizable', b = 31.8 WHERE c = 35;
    INSERT INTO x VALUES(-75.61, -17, 16.85, NULL, X'D73DB02678');
  }]
  set {} {}
} {}


# This currently causes crashes. sqlite3changeset_invert() does not handle
# corrupt changesets well.
if 0 {
  do_test 1.1 {
    for {set i 0} {$i < [string length $changeset]} {incr i} {
      set before [string range $changeset 0 [expr $i-1]]
      set after  [string range $changeset [expr $i+1] end]
      for {set j 10} {$j < 260} {incr j} {
        set x [binary format "a*ca*" $before $j $after]
        catch { sqlite3changeset_invert $x }
      }
    }
  } {}
}

do_test 1.2 {
  set x [binary format "ca*" 0 [string range $changeset 1 end]]
  list [catch { sqlite3changeset_invert $x } msg] $msg
} {1 SQLITE_CORRUPT}

do_test 1.3 {
  set x [binary format "ca*" 0 [string range $changeset 1 end]]
  list [catch { sqlite3changeset_apply db $x xConflict } msg] $msg
} {1 SQLITE_CORRUPT}

finish_test