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use median filter for peer-reported reported number of blocks

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- fixes problem that one misconfigured or malicious node can mess up progress bar
- implementation in src/util.h
- testcase in src/test/util_tests.cpp
This commit is contained in:
Wladimir J. van der Laan 2011-09-28 21:35:58 +02:00
parent 5902040874
commit a8b95ce6ed
3 changed files with 85 additions and 11 deletions
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36
src/test/util_tests.cpp Normal file
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#include <vector>
#include <boost/test/unit_test.hpp>
#include <boost/foreach.hpp>
#include "../util.h"
using namespace std;
BOOST_AUTO_TEST_SUITE(util_tests)
BOOST_AUTO_TEST_CASE(util_MedianFilter)
{
CMedianFilter<int> filter(5, 15);
BOOST_CHECK(filter.median() == 15);
filter.input(20); // [15 20]
BOOST_CHECK(filter.median() == 17);
filter.input(30); // [15 20 30]
BOOST_CHECK(filter.median() == 20);
filter.input(3); // [3 15 20 30]
BOOST_CHECK(filter.median() == 17);
filter.input(7); // [3 7 15 20 30]
BOOST_CHECK(filter.median() == 15);
filter.input(18); // [3 7 18 20 30]
BOOST_CHECK(filter.median() == 18);
filter.input(0); // [0 3 7 18 30]
BOOST_CHECK(filter.median() == 7);
}
BOOST_AUTO_TEST_SUITE_END()