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  • Committer: Package Import Robot
  • Author(s): Clint Byrum
  • Date: 2012-06-19 10:46:49 UTC
  • mfrom: (1.1.6)
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20120619104649-e2l0ggd4oz3um0f4
Tags: upstream-7.1.36-stable
Import upstream version 7.1.36-stable

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tests/kewpie/randgen/lib/GenTest/Validator/RepeatableRead.pm
 
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# Copyright (C) 2008-2009 Sun Microsystems, Inc. All rights reserved.
 
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# Use is subject to license terms.
 
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#
 
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# This program is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation; version 2 of the License.
 
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#
 
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# This program is distributed in the hope that it will be useful, but
 
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# WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 
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# General Public License for more details.
 
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#
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program; if not, write to the Free Software
 
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
 
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# USA
 
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package GenTest::Validator::RepeatableRead;
 
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require Exporter;
 
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@ISA = qw(GenTest::Validator GenTest);
 
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use strict;
 
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use GenTest;
 
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use GenTest::Comparator;
 
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use GenTest::Constants;
 
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use GenTest::Result;
 
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use GenTest::Validator;
 
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#
 
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# We check for database consistency using queries which walk the table in various ways
 
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# We should have also probed each row individually, however this is too CPU intensive
 
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#
 
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my @predicates = (
 
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        '/* no additional predicate */',                                # Rerun original query (does not cause bugs)
 
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        'AND `pk` > -16777216',                                         # Index scan on PK
 
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#       'AND `int_key` > -16777216',                                    # Index scan on key
 
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#       'AND `int_key` > -16777216 ORDER BY `int_key` LIMIT 1000000',   # Falcon LIMIT optimization (broken)
 
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);
 
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sub validate {
 
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        my ($validator, $executors, $results) = @_;
 
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        my $executor = $executors->[0];
 
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        my $orig_result = $results->[0];
 
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        my $orig_query = $orig_result->query();
 
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        return STATUS_OK if $orig_query !~ m{^\s*select}io;
 
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        return STATUS_OK if $orig_result->err() > 0;
 
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        foreach my $predicate (@predicates) {
 
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                my $new_query = $orig_query." ".$predicate;
 
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                my $new_result = $executor->execute($new_query);
 
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                return STATUS_OK if not defined $new_result->data();
 
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                my $compare_outcome = GenTest::Comparator::compare($orig_result, $new_result);
 
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                if ($compare_outcome > STATUS_OK) {
 
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                        say("Query: $orig_query returns different result when executed with additional predicate '$predicate' (".$orig_result->rows()." vs. ".$new_result->rows()." rows).");
 
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                        say(GenTest::Comparator::dumpDiff($orig_result, $new_result));
 
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                        say("Full result from the original query: $orig_query");
 
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                        print join("\n", sort map { join("\t", @$_) } @{$orig_result->data()})."\n";
 
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                        say("Full result from the follow-up query: $new_query");
 
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                        print join("\n", sort map { join("\t", @$_) } @{$new_result->data()})."\n";
 
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                        say("Executing the same queries a second time:");
 
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                        foreach my $repeat_query ($orig_query, $new_query) {
 
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                                my $repeat_result = $executor->execute($repeat_query);
 
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                                say("Full result from the repeat of the query: $repeat_query");
 
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                                print join("\n", sort map { join("\t", @$_) } @{$repeat_result->data()})."\n";
 
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                        }
 
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                        return $compare_outcome; # - STATUS_SELECT_REDUCTION;
 
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                }
 
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        }
 
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        return STATUS_OK;
 
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}
 
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1;