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// (C) Copyright Jeremy Siek 2002.
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#include <boost/pending/disjoint_sets.hpp>
#include <boost/core/lightweight_test.hpp>
#include <boost/cstdlib.hpp>
template < typename DisjointSet > struct test_disjoint_set
{
static void do_test()
{
// The following tests are pretty lame, just a basic sanity check.
// Industrial strength tests still need to be written.
#if !defined(__MWERKS__) || __MWERKS__ > 0x3003
std::size_t elts[]
#else
std::size_t elts[4]
#endif
= { 0, 1, 2, 3 };
const int N = sizeof(elts) / sizeof(*elts);
DisjointSet ds(N);
ds.make_set(elts[0]);
ds.make_set(elts[1]);
ds.make_set(elts[2]);
ds.make_set(elts[3]);
BOOST_TEST(ds.find_set(0) != ds.find_set(1));
BOOST_TEST(ds.find_set(0) != ds.find_set(2));
BOOST_TEST(ds.find_set(0) != ds.find_set(3));
BOOST_TEST(ds.find_set(1) != ds.find_set(2));
BOOST_TEST(ds.find_set(1) != ds.find_set(3));
BOOST_TEST(ds.find_set(2) != ds.find_set(3));
ds.union_set(0, 1);
ds.union_set(2, 3);
BOOST_TEST(ds.find_set(0) != ds.find_set(3));
int a = ds.find_set(0);
BOOST_TEST(a == ds.find_set(1));
int b = ds.find_set(2);
BOOST_TEST(b == ds.find_set(3));
ds.link(a, b);
BOOST_TEST(ds.find_set(a) == ds.find_set(b));
BOOST_TEST(1 == ds.count_sets(elts, elts + N));
ds.normalize_sets(elts, elts + N);
ds.compress_sets(elts, elts + N);
BOOST_TEST(1 == ds.count_sets(elts, elts + N));
}
};
int main(int, char*[])
{
using namespace boost;
{
typedef disjoint_sets_with_storage< identity_property_map,
identity_property_map, find_with_path_halving >
ds_type;
test_disjoint_set< ds_type >::do_test();
}
{
typedef disjoint_sets_with_storage< identity_property_map,
identity_property_map, find_with_full_path_compression >
ds_type;
test_disjoint_set< ds_type >::do_test();
}
return boost::report_errors();
}
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