gtsam/cpp/testFactorgraph.cpp

91 lines
2.5 KiB
C++

/**
* @file testFactorgraph.cpp
* @brief Unit tests for Factor Graphs
* @author Christian Potthast
**/
/*STL/C++*/
#include <list>
#include <iostream>
#include <boost/shared_ptr.hpp>
#include <boost/tuple/tuple.hpp>
#include <boost/assign/std/set.hpp> // for operator +=
using namespace boost::assign;
#include <CppUnitLite/TestHarness.h>
#define GTSAM_MAGIC_KEY
#include "SymbolicFactorGraph.h"
using namespace std;
using namespace gtsam;
typedef boost::shared_ptr<SymbolicFactorGraph> shared;
/* ************************************************************************* */
TEST( FactorGraph, splitMinimumSpanningTree )
{
SymbolicFactorGraph G;
G.push_factor("x1", "x2");
G.push_factor("x1", "x3");
G.push_factor("x1", "x4");
G.push_factor("x2", "x3");
G.push_factor("x2", "x4");
G.push_factor("x3", "x4");
SymbolicFactorGraph T, C;
boost::tie(T, C) = G.splitMinimumSpanningTree();
SymbolicFactorGraph expectedT, expectedC;
expectedT.push_factor("x1", "x2");
expectedT.push_factor("x1", "x3");
expectedT.push_factor("x1", "x4");
expectedC.push_factor("x2", "x3");
expectedC.push_factor("x2", "x4");
expectedC.push_factor("x3", "x4");
CHECK(assert_equal(expectedT,T));
CHECK(assert_equal(expectedC,C));
}
/* ************************************************************************* */
/**
* x1 - x2 - x3 - x4 - x5
* | | / |
* l1 l2 l3
*/
TEST( FactorGraph, removeSingletons )
{
SymbolicFactorGraph G;
G.push_factor("x1", "x2");
G.push_factor("x2", "x3");
G.push_factor("x3", "x4");
G.push_factor("x4", "x5");
G.push_factor("x2", "l1");
G.push_factor("x3", "l2");
G.push_factor("x4", "l2");
G.push_factor("x4", "l3");
SymbolicFactorGraph singletonGraph;
set<Symbol> singletons;
boost::tie(singletonGraph, singletons) = G.removeSingletons();
set<Symbol> singletons_excepted; singletons_excepted += "x1", "x2", "x5", "l1", "l3";
CHECK(singletons_excepted == singletons);
SymbolicFactorGraph singletonGraph_excepted;
singletonGraph_excepted.push_factor("x2", "l1");
singletonGraph_excepted.push_factor("x4", "l3");
singletonGraph_excepted.push_factor("x1", "x2");
singletonGraph_excepted.push_factor("x4", "x5");
singletonGraph_excepted.push_factor("x2", "x3");
CHECK(singletonGraph_excepted.equals(singletonGraph));
}
/* ************************************************************************* */
int main() {
TestResult tr;
return TestRegistry::runAllTests(tr);
}
/* ************************************************************************* */