#
# $Id: append.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/
#

use strict;
use Test;
use ConfigFileEdit;


#
#   Test the ability to append an item to the list.
#   Tests we plan are:
#      Append item and check that:
#      1)   The count of items is incremented by 1.
#      2)   The last item is the one we added.
#      3)   Append comment ensure that size of index is not
#           increased.
#
BEGIN {plan tests=>3}

#
#   Test that after an append, the count of items is increased by one.

sub TestAppendCount {
    my $editor        = ConfigFileEdit->new("testconfig.cfg", 0);
    my $editorlines   = ($editor->{LineArray});
    my $initiallength = @$editorlines;
 
    $editor->Append("onemore:line:added:at:end");

    $editorlines      = ($editor->{LineArray});
    my $finallength   = @$editorlines;

    ok($initiallength+1, $finallength);
}
#
#   Test that after an append the new item has an index that is last.
#
sub TestAppendIsLast
{
    my $editor       = ConfigFileEdit->new("testconfig.cfg", 0);
    $editor->Append("onemore:line:added:at:end");

    my $editorlines  = ($editor->{LineArray});
    my $finallength  = @$editorlines;
    
    my $editorhash   = ($editor->{KeyToLines});
    my $linenum      = $editorhash->{"onemore"};

    ok($finallength - 1, $linenum); # New line is last line.
    
}
#
#   Test that append comment does not add to the index hash.
#
sub TestCommentAppend {
    my $editor           = ConfigFileEdit->new("testconfig.cfg", 0);

    # Figure out how many keys we have now.

    my $editorhash       = ($editor->{KeyToLines});
    my @hashkeys         = keys %$editorhash;
    my $initialcount     = @hashkeys;

    #  Append a comment and figure out how many keys we have:

    $editor->Append("#   This is clearly a comment line");
    $editorhash         = ($editor->{KeyToLines});
    @hashkeys           = keys %$editorhash;

    my $finalcount      = @hashkeys;

    ok($initialcount, $finalcount);
}

TestAppendCount;
TestAppendIsLast;
TestCommentAppend