#
# Copyright (c) 2006 D. Richard Hipp
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public
# License version 2 as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
# 
# You should have received a copy of the GNU General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA  02111-1307, USA.
#
# Author contact information:
#   drh@hwaci.com
#   http://www.hwaci.com/drh/
#
############################################################################
#
# Tests of the delta mechanism.
#

# Use test script files as the basis for this test.
#
# For each test, copy the file intact to "./t1".  Make
# some random changes in "./t2".  Then call test-delta on the
# two files to make sure that deltas between these two files
# work properly.
#
set filelist [glob $testdir/*]
foreach f $filelist {
  set base [file root [file tail $f]]
puts "base=$base f=$f"
  set f1 [read_file $f]
  write_file t1 $f1
  for {set i 0} {$i<100} {incr i} {
    write_file t2 [random_changes $f1 1 1 0 0.1]
    fossil test-delta t1 t2
    test delta-$base-$i-1 {$RESULT=="ok"}
    write_file t2 [random_changes $f1 1 1 0 0.2]
    fossil test-delta t1 t2
    test delta-$base-$i-2 {$RESULT=="ok"}
    write_file t2 [random_changes $f1 1 1 0 0.4]
    fossil test-delta t1 t2
    test delta-$base-$i-3 {$RESULT=="ok"}
  }
}
