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// Copyright (C) 2011 Davis E. King (davis@dlib.net)
// License: Boost Software License See LICENSE.txt for the full license.
#include <sstream>
#include <string>
#include <cstdlib>
#include <ctime>
#include <dlib/disjoint_subsets.h>
#include "tester.h"
namespace
{
using namespace test;
using namespace dlib;
using namespace std;
logger dlog("test.disjoint_subsets_sized");
void test_disjoint_subsets_sized()
{
print_spinner();
disjoint_subsets_sized s;
DLIB_TEST(s.size() == 0);
DLIB_TEST(s.get_number_of_sets() == 0);
s.set_size(5);
DLIB_TEST(s.size() == 5);
DLIB_TEST(s.get_number_of_sets() == 5);
DLIB_TEST(s.find_set(0) == 0);
DLIB_TEST(s.find_set(1) == 1);
DLIB_TEST(s.find_set(2) == 2);
DLIB_TEST(s.find_set(3) == 3);
DLIB_TEST(s.find_set(4) == 4);
DLIB_TEST(s.get_size_of_set(0) == 1);
DLIB_TEST(s.get_size_of_set(1) == 1);
DLIB_TEST(s.get_size_of_set(2) == 1);
DLIB_TEST(s.get_size_of_set(3) == 1);
DLIB_TEST(s.get_size_of_set(4) == 1);
unsigned long id = s.merge_sets(1,3);
DLIB_TEST(s.get_number_of_sets() == 4);
DLIB_TEST(s.find_set(0) == 0);
DLIB_TEST(s.find_set(1) == id);
DLIB_TEST(s.find_set(2) == 2);
DLIB_TEST(s.find_set(3) == id);
DLIB_TEST(s.find_set(4) == 4);
DLIB_TEST(s.get_size_of_set(0) == 1);
DLIB_TEST(s.get_size_of_set(s.find_set(1)) == 2);
DLIB_TEST(s.get_size_of_set(2) == 1);
DLIB_TEST(s.get_size_of_set(s.find_set(3)) == 2);
DLIB_TEST(s.get_size_of_set(4) == 1);
id = s.merge_sets(s.find_set(1),4);
DLIB_TEST(s.get_number_of_sets() == 3);
DLIB_TEST(s.find_set(0) == 0);
DLIB_TEST(s.find_set(1) == id);
DLIB_TEST(s.find_set(2) == 2);
DLIB_TEST(s.find_set(3) == id);
DLIB_TEST(s.find_set(4) == id);
DLIB_TEST(s.get_size_of_set(0) == 1);
DLIB_TEST(s.get_size_of_set(s.find_set(1)) == 3);
DLIB_TEST(s.get_size_of_set(2) == 1);
DLIB_TEST(s.get_size_of_set(s.find_set(3)) == 3);
DLIB_TEST(s.get_size_of_set(s.find_set(4)) == 3);
unsigned long id2 = s.merge_sets(0,2);
DLIB_TEST(s.get_number_of_sets() == 2);
DLIB_TEST(s.find_set(0) == id2);
DLIB_TEST(s.find_set(1) == id);
DLIB_TEST(s.find_set(2) == id2);
DLIB_TEST(s.find_set(3) == id);
DLIB_TEST(s.find_set(4) == id);
DLIB_TEST(s.get_size_of_set(s.find_set(0)) == 2);
DLIB_TEST(s.get_size_of_set(s.find_set(1)) == 3);
DLIB_TEST(s.get_size_of_set(s.find_set(2)) == 2);
DLIB_TEST(s.get_size_of_set(s.find_set(3)) == 3);
DLIB_TEST(s.get_size_of_set(s.find_set(4)) == 3);
id = s.merge_sets(s.find_set(1),s.find_set(0));
DLIB_TEST(s.get_number_of_sets() == 1);
DLIB_TEST(s.find_set(0) == id);
DLIB_TEST(s.find_set(1) == id);
DLIB_TEST(s.find_set(2) == id);
DLIB_TEST(s.find_set(3) == id);
DLIB_TEST(s.find_set(4) == id);
DLIB_TEST(s.get_size_of_set(s.find_set(0)) == 5);
DLIB_TEST(s.get_size_of_set(s.find_set(1)) == 5);
DLIB_TEST(s.get_size_of_set(s.find_set(2)) == 5);
DLIB_TEST(s.get_size_of_set(s.find_set(3)) == 5);
DLIB_TEST(s.get_size_of_set(s.find_set(4)) == 5);
DLIB_TEST(s.size() == 5);
s.set_size(1);
DLIB_TEST(s.size() == 1);
DLIB_TEST(s.get_number_of_sets() == 1);
DLIB_TEST(s.find_set(0) == 0);
DLIB_TEST(s.get_size_of_set(0) == 1);
s.set_size(2);
DLIB_TEST(s.size() == 2);
DLIB_TEST(s.get_number_of_sets() == 2);
DLIB_TEST(s.find_set(0) == 0);
DLIB_TEST(s.find_set(1) == 1);
DLIB_TEST(s.get_size_of_set(0) == 1);
DLIB_TEST(s.get_size_of_set(1) == 1);
id = s.merge_sets(0,1);
DLIB_TEST(s.size() == 2);
DLIB_TEST(s.get_number_of_sets() == 1);
DLIB_TEST(id == s.find_set(0));
DLIB_TEST(id == s.find_set(1));
DLIB_TEST(s.get_size_of_set(s.find_set(0)) == 2);
DLIB_TEST(s.get_size_of_set(s.find_set(1)) == 2);
DLIB_TEST(s.size() == 2);
s.clear();
DLIB_TEST(s.size() == 0);
DLIB_TEST(s.get_number_of_sets() == 0);
}
class tester_disjoint_subsets_sized : public tester
{
public:
tester_disjoint_subsets_sized (
) :
tester ("test_disjoint_subsets_sized",
"Runs tests on the disjoint_subsets_sized component.")
{}
void perform_test (
)
{
test_disjoint_subsets_sized();
}
} a;
}
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