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#!/usr/bin/perl
BEGIN {
die "The PERCONA_TOOLKIT_BRANCH environment variable is not set.\n"
unless $ENV{PERCONA_TOOLKIT_BRANCH} && -d $ENV{PERCONA_TOOLKIT_BRANCH};
unshift @INC, "$ENV{PERCONA_TOOLKIT_BRANCH}/lib";
};
use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use Test::More;
use ReportFormatter;
use Transformers;
use DSNParser;
use Sandbox;
use CompareQueryTimes;
use PerconaTest;
my $dp = new DSNParser(opts=>$dsn_opts);
my $sb = new Sandbox(basedir => '/tmp', DSNParser => $dp);
my $dbh = $sb->get_dbh_for('master');
if ( !$dbh ) {
plan skip_all => "Cannot connect to sandbox master";
}
else {
plan tests => 25;
}
$sb->create_dbs($dbh, ['test']);
Transformers->import(qw(make_checksum));
my $ct;
my $report;
my $hosts = [
{ dbh => $dbh, name => 'server1' },
{ dbh => $dbh, name => 'server2' },
];
sub get_id {
return make_checksum(@_);
}
# #############################################################################
# Test it.
# #############################################################################
# diag(`/tmp/12345/use < samples/compare-warnings.sql`);
$ct = new CompareQueryTimes(
get_id => \&get_id,
);
isa_ok($ct, 'CompareQueryTimes');
# #############################################################################
# Test query time comparison.
# #############################################################################
sub compare {
my ( $t1, $t2 ) = @_;
return $ct->compare(
events => [
{ fingerprint => 'foo', Query_time => $t1, },
{ fingerprint => 'foo', Query_time => $t2, },
],
);
}
sub test_compare_query_times {
my ( $t1, $t2, $diff, $comment ) = @_;
my %diff = compare($t1, $t2);
my $msg = sprintf("compare t %.6f vs. %.6f %s",
$t1, $t2, ($comment || ''));
is(
$diff{different_query_times},
$diff,
$msg,
);
}
test_compare_query_times(0, 0, 0);
test_compare_query_times(0, 0.000001, 1, 'increase from zero');
test_compare_query_times(0.000001, 0.000005, 0, 'no increase in bucket');
test_compare_query_times(0.000001, 0.000010, 1, '1 bucket diff on edge');
test_compare_query_times(0.000008, 0.000018, 1, '1 bucket diff');
test_compare_query_times(0.000001, 10, 1, 'full bucket range diff on edges');
test_compare_query_times(0.000008, 1000000, 1, 'huge diff');
# Thresholds
test_compare_query_times(0.000001, 0.000006, 1, '1us threshold');
test_compare_query_times(0.000010, 0.000020, 1, '10us threshold');
test_compare_query_times(0.000100, 0.000200, 1, '100us threshold');
test_compare_query_times(0.001000, 0.006000, 1, '1ms threshold');
test_compare_query_times(0.010000, 0.015000, 1, '10ms threshold');
test_compare_query_times(0.100000, 0.150000, 1, '100ms threshold');
test_compare_query_times(1.000000, 1.200000, 1, '1s threshold');
test_compare_query_times(10.0, 10.1, 1, '10s threshold');
# #############################################################################
# Test the main actions, which don't do much.
# #############################################################################
my $event = {
fingerprint => 'set @a=?',
arg => 'set @a=3',
sampleno => 4,
};
$dbh->do('set @a=1');
is_deeply(
$dbh->selectcol_arrayref('select @a'),
[1],
'@a set'
);
is_deeply(
$ct->before_execute(event => $event),
$event,
"before_execute() doesn't modify event"
);
$ct->execute(event => $event, dbh => $dbh);
ok(
exists $event->{Query_time}
&& $event->{Query_time} >= 0,
'execute() set Query_time'
);
is_deeply(
$dbh->selectcol_arrayref('select @a'),
[3],
'Query was actually executed'
);
is_deeply(
$ct->after_execute(event => $event),
$event,
"after_execute() doesn't modify event"
);
# #############################################################################
# Test the reports.
# #############################################################################
$ct->reset();
compare(0.000100, 0.000250);
$report = <<EOF;
# Significant query time differences
# Query ID host1 host2 %Increase %Threshold
# ================== ===== ===== ========= ==========
# EDEF654FCCC4A4D8-0 100us 250us 150.00 100
EOF
is(
$ct->report(hosts => $hosts),
$report,
'report in bucket difference'
);
$ct->reset();
compare(0.000100, 1.100251);
$report = <<EOF;
# Big query time differences
# Query ID host1 host2 Difference
# ================== ===== ===== ==========
# EDEF654FCCC4A4D8-0 100us 1s 1s
EOF
is(
$ct->report(hosts => $hosts),
$report,
'report in bucket difference'
);
# #############################################################################
# Done.
# #############################################################################
my $output = '';
{
local *STDERR;
open STDERR, '>', \$output;
$ct->_d('Complete test coverage');
}
like(
$output,
qr/Complete test coverage/,
'_d() works'
);
$sb->wipe_clean($dbh);
ok($sb->ok(), "Sandbox servers") or BAIL_OUT(__FILE__ . " broke the sandbox");
exit;
|
