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# Copyright (C) 2008-2009 Sun Microsystems, Inc. All rights reserved.
# Use is subject to license terms.
#
# This program 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; version 2 of the License.
#
# 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 program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
# USA
package GenTest::Validator::OrderBy;
require Exporter;
@ISA = qw(GenTest::Validator GenTest);
use strict;
use GenTest;
use GenTest::Comparator;
use GenTest::Constants;
use GenTest::Result;
use GenTest::Validator;
sub validate {
my ($validator, $executors, $results) = @_;
my $executor = $executors->[0];
my $orig_result = $results->[0];
my $orig_query = $orig_result->query();
return STATUS_OK if $orig_query !~ m{^\s*select}io;
my $fields = $executor->metaColumns();
my @field_orders = map { 'ORDER BY OUTR . `'.$_.'` , OUTR . `pk`' } @$fields;
my $new_query = $orig_query;
# Remove existing ORDER BY if present
$new_query =~ s{ORDER BY OUTR \. `.*?` , OUTR \. `pk`}{}io;
foreach my $predicate ( '/* no ORDER BY */' , @field_orders ) {
my $new_result = $executor->execute($new_query." ".$predicate);
return STATUS_OK if not defined $new_result->data();
my $compare_outcome = GenTest::Comparator::compare($orig_result, $new_result);
if (
($compare_outcome ==STATUS_LENGTH_MISMATCH) ||
($compare_outcome ==STATUS_CONTENT_MISMATCH)
) {
say("Query: $orig_query returns different result when executed with predicate '$predicate' (".$orig_result->rows()." vs. ".$new_result->rows()." rows).");
say(GenTest::Comparator::dumpDiff($orig_result, $new_result));
}
return $compare_outcome if $compare_outcome > STATUS_OK;
}
return STATUS_OK;
}
1;
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