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Add C++ testcases for verification

This commit is contained in:
Joris van Rantwijk 2023-05-18 20:59:12 +02:00
parent 9c669f2d03
commit 9b064de4d8
1 changed files with 126 additions and 0 deletions
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126
cpp/test_mwmatching.cpp
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@ -497,3 +497,129 @@ BOOST_AUTO_TEST_CASE(test41_maxcard)
}
BOOST_AUTO_TEST_SUITE_END()
/* ********** Test verification ********** */
BOOST_AUTO_TEST_SUITE(test_verification)
BOOST_AUTO_TEST_CASE(test_success)
{
using mwmatching::impl::NO_VERTEX;
EdgeVectorLong edges = {{0, 1, 10}, {1, 2, 11}};
mwmatching::impl::MatchingContext<long> ctx(edges);
ctx.vertex_mate = {NO_VERTEX, 2, 1};
ctx.vertex_dual = {0, 20, 2};
ctx.nontrivial_blossom.clear();
mwmatching::impl::MatchingVerifier<long> verifier(ctx);
BOOST_TEST(verifier.verify() == true);
}
BOOST_AUTO_TEST_CASE(test_asymmetric_matching)
{
using mwmatching::impl::NO_VERTEX;
EdgeVectorLong edges = {{0, 1, 10}, {1, 2, 11}};
mwmatching::impl::MatchingContext<long> ctx(edges);
ctx.vertex_mate = {NO_VERTEX, 2, 0};
ctx.vertex_dual = {0, 20, 2};
ctx.nontrivial_blossom.clear();
mwmatching::impl::MatchingVerifier<long> verifier(ctx);
BOOST_TEST(verifier.verify() == false);
}
BOOST_AUTO_TEST_CASE(test_nonexistent_matched_edge)
{
using mwmatching::impl::NO_VERTEX;
EdgeVectorLong edges = {{0, 1, 10}, {1, 2, 11}};
mwmatching::impl::MatchingContext<long> ctx(edges);
ctx.vertex_mate = {2, NO_VERTEX, 0};
ctx.vertex_dual = {11, 11, 11};
ctx.nontrivial_blossom.clear();
mwmatching::impl::MatchingVerifier<long> verifier(ctx);
BOOST_TEST(verifier.verify() == false);
}
BOOST_AUTO_TEST_CASE(test_negative_vertex_dual)
{
using mwmatching::impl::NO_VERTEX;
EdgeVectorLong edges = {{0, 1, 10}, {1, 2, 11}};
mwmatching::impl::MatchingContext<long> ctx(edges);
ctx.vertex_mate = {NO_VERTEX, 2, 1};
ctx.vertex_dual = {-2, 22, 0};
ctx.nontrivial_blossom.clear();
mwmatching::impl::MatchingVerifier<long> verifier(ctx);
BOOST_TEST(verifier.verify() == false);
}
BOOST_AUTO_TEST_CASE(test_unmatched_nonzero_dual)
{
using mwmatching::impl::NO_VERTEX;
EdgeVectorLong edges = {{0, 1, 10}, {1, 2, 11}};
mwmatching::impl::MatchingContext<long> ctx(edges);
ctx.vertex_mate = {NO_VERTEX, 2, 1};
ctx.vertex_dual = {9, 11, 11};
ctx.nontrivial_blossom.clear();
mwmatching::impl::MatchingVerifier<long> verifier(ctx);
BOOST_TEST(verifier.verify() == false);
}
BOOST_AUTO_TEST_CASE(test_negative_edge_slack)
{
using mwmatching::impl::NO_VERTEX;
EdgeVectorLong edges = {{0, 1, 10}, {1, 2, 11}};
mwmatching::impl::MatchingContext<long> ctx(edges);
ctx.vertex_mate = {NO_VERTEX, 2, 1};
ctx.vertex_dual = {0, 11, 11};
ctx.nontrivial_blossom.clear();
mwmatching::impl::MatchingVerifier<long> verifier(ctx);
BOOST_TEST(verifier.verify() == false);
}
BOOST_AUTO_TEST_CASE(test_matched_edge_slack)
{
using mwmatching::impl::NO_VERTEX;
EdgeVectorLong edges = {{0, 1, 10}, {1, 2, 11}};
mwmatching::impl::MatchingContext<long> ctx(edges);
ctx.vertex_mate = {NO_VERTEX, 2, 1};
ctx.vertex_dual = {0, 20, 11};
ctx.nontrivial_blossom.clear();
mwmatching::impl::MatchingVerifier<long> verifier(ctx);
BOOST_TEST(verifier.verify() == false);
}
BOOST_AUTO_TEST_CASE(test_negative_blossom_dual)
{
EdgeVectorLong edges = {{0, 1, 7}, {0, 2, 8}, {1, 2, 9}, {2, 3, 6}};
mwmatching::impl::MatchingContext<long> ctx(edges);
ctx.vertex_mate = {1, 0, 3, 2};
ctx.vertex_dual = {4, 6, 8, 4};
mwmatching::impl::Blossom<long> b0(0);
mwmatching::impl::Blossom<long> b1(1);
mwmatching::impl::Blossom<long> b2(2);
ctx.nontrivial_blossom.emplace_back(
std::vector<mwmatching::impl::Blossom<long>*>{&b0, &b1, &b2},
std::deque<mwmatching::VertexPair>{{0, 1}, {1, 2}, {2, 0}});
ctx.nontrivial_blossom.front().dual_var = -2;
mwmatching::impl::MatchingVerifier<long> verifier(ctx);
BOOST_TEST(verifier.verify() == false);
}
BOOST_AUTO_TEST_CASE(test_blossom_not_full)
{
using mwmatching::impl::NO_VERTEX;
EdgeVectorLong edges = {{0, 1, 7}, {0, 2, 2}, {1, 2, 5}, {0, 3, 8}, {1, 4, 8}};
mwmatching::impl::MatchingContext<long> ctx(edges);
ctx.vertex_mate = {3, 4, NO_VERTEX, 0, 1};
ctx.vertex_dual = {4, 10, 0, 12, 6};
mwmatching::impl::Blossom<long> b0(0);
mwmatching::impl::Blossom<long> b1(1);
mwmatching::impl::Blossom<long> b2(2);
ctx.nontrivial_blossom.emplace_back(
std::vector<mwmatching::impl::Blossom<long>*>{&b0, &b1, &b2},
std::deque<mwmatching::VertexPair>{{0, 1}, {1, 2}, {2, 0}});
ctx.nontrivial_blossom.front().dual_var = 2;
mwmatching::impl::MatchingVerifier<long> verifier(ctx);
BOOST_TEST(verifier.verify() == false);
}
BOOST_AUTO_TEST_SUITE_END()