68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
/**
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* @file testPose2Constraint.cpp
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* @brief Unit tests for Pose2Constraint Class
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* @authors Frank Dellaert, Viorela Ila
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**/
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/*STL/C++*/
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#include <iostream>
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#include <CppUnitLite/TestHarness.h>
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#include "Pose2Constraint.h"
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using namespace std;
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using namespace gtsam;
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TEST( Pose2Constraint, constructor )
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{
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// create a factor between unknown poses p1 and p2
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Pose2 measured(2,2,M_PI_2);
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Matrix measurement_covariance = Matrix_(3,3,
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0.25, 0.0, 0.0,
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0.0, 0.25, 0.0,
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0.0, 0.0, 0.01
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);
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Pose2Constraint constraint("p1","p2",measured, measurement_covariance);
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// Choose a linearization point
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Pose2 p1(1.1,2,M_PI_2); // robot at (1.1,2) looking towards y (ground truth is at 1,2, see testPose2)
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Pose2 p2(-1,4.1,M_PI); // robot at (-1,4) looking at negative (ground truth is at 4.1,2)
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Pose2Config config;
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config.insert(make_pair("p1",p1));
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config.insert(make_pair("p2",p2));
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// Linearize
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boost::shared_ptr<GaussianFactor> actual = constraint.linearize(config);
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// expected
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Matrix expectedH1 = Matrix_(3,3,
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0.0,-1.0,2.1,
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1.0,0.0,-2.1,
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0.0,0.0,-1.0
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);
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Matrix expectedH2 = Matrix_(3,3,
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0.0,1.0,0.0,
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-1.0,0.0,0.0,
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0.0,0.0,1.0
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);
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// we need the minus signs as inverse_square_root uses SVD and sign is simply arbitrary (still a ssquare root!)
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Matrix square_root_inverse_covariance = Matrix_(3,3,
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-2.0, 0.0, 0.0,
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0.0, -2.0, 0.0,
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0.0, 0.0, -10.0
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);
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GaussianFactor expected(
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"p1", square_root_inverse_covariance*expectedH1,
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"p2", square_root_inverse_covariance*expectedH2,
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Vector_(3,-0.1,-0.1,0.0), 1.0);
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CHECK(assert_equal(expected,*actual));
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}
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/* ************************************************************************* */
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int main() {
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TestResult tr;
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return TestRegistry::runAllTests(tr);
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}
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/* ************************************************************************* */
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