Files
reachability-algorithms/test/graph_test.cc

48 lines
865 B
C++

#include <doctest/doctest.h>
#include "graph/scc.h"
#include "algorithm/tarjan.h"
#include <vector>
using namespace graph;
TEST_SUITE("Graph") {
TEST_CASE("Digraph::reverse") {
// 1 --> 2 --> 4 --> 1
// 2 --> 3 --> 5 --> 7 --> 3
// 5 --> 9 --> 6 --> 8 --> 9
Digraph<std::uint16_t> G;
G.insert(1, 2);
G.insert(2, 3);
G.insert(2, 4);
G.insert(3, 5);
G.insert(4, 1);
G.insert(5, 7);
G.insert(5, 9);
G.insert(6, 8);
G.insert(7, 3);
G.insert(8, 9);
G.insert(9, 6);
REQUIRE_EQ(G.adjMatrix.size(), 9);
auto R = G.reverse();
std::map<std::uint16_t, std::set<std::uint16_t>> X = {
{1, {4}},
{2, {1}},
{3, {2, 7}},
{4, {2}},
{5, {3}},
{6, {9}},
{7, {5}},
{8, {6}},
{9, {5, 8}}
};
CHECK_EQ(R, X);
}
}