Index: src/Fragmentation/Exporters/unittests/SphericalPointDistributionUnitTest.cpp
===================================================================
--- src/Fragmentation/Exporters/unittests/SphericalPointDistributionUnitTest.cpp	(revision 64cafb2cea4919e67a64a683c7bfb1682edd240f)
+++ src/Fragmentation/Exporters/unittests/SphericalPointDistributionUnitTest.cpp	(revision 64cafb2cea4919e67a64a683c7bfb1682edd240f)
@@ -0,0 +1,132 @@
+/*
+ * Project: MoleCuilder
+ * Description: creates and alters molecular systems
+ * Copyright (C)  2014 Frederik Heber. All rights reserved.
+ * 
+ *
+ *   This file is part of MoleCuilder.
+ *
+ *    MoleCuilder is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    MoleCuilder is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with MoleCuilder.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * SphericalPointDistributionUnitTest.cpp
+ *
+ *  Created on: May 29, 2014
+ *      Author: heber
+ */
+
+// include config.h
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+using namespace std;
+
+#include <cppunit/CompilerOutputter.h>
+#include <cppunit/extensions/TestFactoryRegistry.h>
+#include <cppunit/ui/text/TestRunner.h>
+
+// include headers that implement a archive in simple text format
+#include <boost/archive/text_oarchive.hpp>
+#include <boost/archive/text_iarchive.hpp>
+
+#include "SphericalPointDistributionUnitTest.hpp"
+
+#include <boost/assign.hpp>
+
+#include "CodePatterns/Assert.hpp"
+
+#include "Fragmentation/Exporters/SphericalPointDistribution.hpp"
+
+#ifdef HAVE_TESTRUNNER
+#include "UnitTestMain.hpp"
+#endif /*HAVE_TESTRUNNER*/
+
+using namespace boost::assign;
+
+/********************************************** Test classes **************************************/
+
+// Registers the fixture into the 'registry'
+CPPUNIT_TEST_SUITE_REGISTRATION( SphericalPointDistributionTest );
+
+
+void SphericalPointDistributionTest::setUp()
+{
+  // failing asserts should be thrown
+  ASSERT_DO(Assert::Throw);
+}
+
+
+void SphericalPointDistributionTest::tearDown()
+{
+}
+
+/** UnitTest for matchSphericalPointDistributions() with two points
+ */
+void SphericalPointDistributionTest::matchSphericalPointDistributionsTest_2()
+{
+  SphericalPointDistribution SPD(1.);
+  // test with one point, matching trivially
+  {
+    SphericalPointDistribution::Polygon_t polygon;
+    polygon += Vector(1.,0.,0.);
+    SphericalPointDistribution::Polygon_t newpolygon =
+        SPD.get<2>();
+    SphericalPointDistribution::Polygon_t expected;
+    expected += Vector(-1.,0.,0.);
+    SphericalPointDistribution::Polygon_t remaining =
+        SphericalPointDistribution::matchSphericalPointDistributions(
+            polygon,
+            newpolygon);
+    CPPUNIT_ASSERT_EQUAL( expected, remaining );
+  }
+
+  // test with one point, just a flip of axis
+  {
+    SphericalPointDistribution::Polygon_t polygon;
+    polygon += Vector(0.,1.,0.);
+    SphericalPointDistribution::Polygon_t newpolygon =
+        SPD.get<2>();
+    SphericalPointDistribution::Polygon_t expected;
+    expected += Vector(-1.,0.,0.);
+    SphericalPointDistribution::Polygon_t remaining =
+        SphericalPointDistribution::matchSphericalPointDistributions(
+            polygon,
+            newpolygon);
+    CPPUNIT_ASSERT_EQUAL( expected, remaining );
+  }
+}
+
+/** UnitTest for matchSphericalPointDistributions() with three points
+ */
+void SphericalPointDistributionTest::matchSphericalPointDistributionsTest_3()
+{
+  SphericalPointDistribution SPD(1.);
+
+  // test with one point, matching trivially
+  {
+    SphericalPointDistribution::Polygon_t polygon;
+    polygon += Vector(1.,0.,0.);
+    SphericalPointDistribution::Polygon_t newpolygon =
+        SPD.get<3>();
+    SphericalPointDistribution::Polygon_t expected = newpolygon;
+    expected.pop_front(); // remove first point
+    SphericalPointDistribution::Polygon_t remaining =
+        SphericalPointDistribution::matchSphericalPointDistributions(
+            polygon,
+            newpolygon);
+    CPPUNIT_ASSERT_EQUAL( expected, remaining );
+  }
+}
