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Bring back into the mainl-line from whatever branching hell import decided
to put them in.

#
# $Id: modify.t,v 1.2 2003/11/25 12:15:35 foxr Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA 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 LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#


#  Test new functionality of ConfigFileEditor::delete
#

use strict;
use Test;
use ConfigFileEdit;


#
#   Tests  we plan are:
#     Modify a line in the test file and
#     - Ensure that the modified line is retrievable.
#     - Ensure that the old line is gone
#       To do this we modify a line in a way that
#       changes its index.
#     Modify a line in the test file, replacing it with a comment.
#     - Ensure the old line is gone.
#     - Ensure the number of keys in the index hash decreased by 1.
#

BEGIN {plan tests => 4} 

#
#  Replace a line with noncomment.#
#
sub NonCommentReplace {
    my $newline = "end:final:line:in:file";
    my $editor = ConfigFileEdit->new("test2config.cfg", 0);
    $editor->ReplaceLine("last", $newline);
    
    ok($editor->Find("end"), $newline);
    
    if(!defined($editor->Find("last"))) {
	ok(1);
    } else {
	ok(0);
    }
}

sub CommentReplace {
    my $newline  = "  # end:final:line:in:file";
    my $editor   = ConfigFileEdit->new("test2config.cfg", 0);

    my $hashref  = $editor->{KeyToLines};
    my @keys     = keys(%$hashref);
    my $keycount1= @keys;	# Number of keys initially.

    $editor->ReplaceLine("last", $newline);
    
    if(!defined($editor->Find("last"))) {
	ok(1);
    } else {
	ok(0);
    }
    @keys         = keys(%$hashref);
    my $keycount2 = @keys;
    ok($keycount2, $keycount1 - 1);


}


NonCommentReplace;
CommentReplace;