Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

95 lines (77 sloc) 2.841 kb
// histogramtests.cpp : histogram.{h,cpp} unit tests
/**
* Copyright (C) 2010 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "../pch.h"
#include "dbtests.h"
#include "../util/histogram.h"
namespace mongo {
using mongo::Histogram;
class BoundariesInit {
public:
void run() {
Histogram::Options opts;
opts.numBuckets = 3;
opts.bucketSize = 10;
Histogram h( opts );
ASSERT_EQUALS( h.getBucketsNum(), 3u );
ASSERT_EQUALS( h.getCount( 0 ), 0u );
ASSERT_EQUALS( h.getCount( 1 ), 0u );
ASSERT_EQUALS( h.getCount( 2 ), 0u );
ASSERT_EQUALS( h.getBoundary( 0 ), 10u );
ASSERT_EQUALS( h.getBoundary( 1 ), 20u );
ASSERT_EQUALS( h.getBoundary( 2 ), numeric_limits<uint32_t>::max() );
}
};
class BoundariesExponential {
public:
void run() {
Histogram::Options opts;
opts.numBuckets = 4;
opts.bucketSize = 125;
opts.exponential = true;
Histogram h( opts );
ASSERT_EQUALS( h.getBoundary( 0 ), 125u );
ASSERT_EQUALS( h.getBoundary( 1 ), 250u );
ASSERT_EQUALS( h.getBoundary( 2 ), 500u );
ASSERT_EQUALS( h.getBoundary( 3 ), numeric_limits<uint32_t>::max() );
}
};
class BoundariesFind {
public:
void run() {
Histogram::Options opts;
opts.numBuckets = 3;
opts.bucketSize = 10;
Histogram h( opts );
h.insert( 10 ); // end of first bucket
h.insert( 15 ); // second bucket
h.insert( 18 ); // second bucket
ASSERT_EQUALS( h.getCount( 0 ), 1u );
ASSERT_EQUALS( h.getCount( 1 ), 2u );
ASSERT_EQUALS( h.getCount( 2 ), 0u );
}
};
class HistogramSuite : public Suite {
public:
HistogramSuite() : Suite( "histogram" ) {}
void setupTests() {
add< BoundariesInit >();
add< BoundariesExponential >();
add< BoundariesFind >();
// TODO: complete the test suite
}
} histogramSuite;
} // anonymous namespace
Jump to Line
Something went wrong with that request. Please try again.