diff --git a/hoot-core-test/src/test/cpp/hoot/core/ops/RandomNodeDuplicatorTest.cpp b/hoot-core-test/src/test/cpp/hoot/core/ops/RandomNodeDuplicatorTest.cpp
new file mode 100644
index 0000000..e5a3181
--- /dev/null
+++ b/hoot-core-test/src/test/cpp/hoot/core/ops/RandomNodeDuplicatorTest.cpp
@@ -0,0 +1,158 @@
+/*
+ * This file is part of Hootenanny.
+ *
+ * Hootenanny 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * --------------------------------------------------------------------
+ *
+ * The following copyright notices are generated automatically. If you
+ * have a new notice to add, please use the format:
+ * " * @copyright Copyright ..."
+ * This will properly maintain the copyright information. DigitalGlobe
+ * copyrights will be updated automatically.
+ *
+ * @copyright Copyright (C) 2013, 2014, 2015, 2017, 2018, 2019 DigitalGlobe (http://www.digitalglobe.com/)
+ */
+
+// CPP Unit
+#include <cppunit/extensions/HelperMacros.h>
+#include <cppunit/extensions/TestFactoryRegistry.h>
+#include <cppunit/TestAssert.h>
+#include <cppunit/TestFixture.h>
+
+// Hoot
+#include <hoot/core/elements/OsmMap.h>
+#include <hoot/core/TestUtils.h>
+#include <hoot/core/io/OsmXmlReader.h>
+#include <hoot/core/io/OsmXmlWriter.h>
+#include <hoot/core/util/Exception.h>
+#include <hoot/core/util/Log.h>
+#include <hoot/core/util/MapProjector.h>
+#include <hoot/core/ops/RandomNodeDuplicator.h>
+
+// tbs
+#include <tbs/stats/SampleStats.h>
+
+// Qt
+#include <QSet>
+
+using namespace std;
+
+namespace hoot
+{
+
+class RandomNodeDuplicatorTest : public HootTestFixture
+{
+ CPPUNIT_TEST_SUITE(RandomNodeDuplicatorTest);
+ CPPUNIT_TEST(runBasicTest);
+ CPPUNIT_TEST_SUITE_END();
+
+public:
+
+ void runBasicTest()
+ {
+ OsmMapPtr map(new OsmMap());
+ OGREnvelope env;
+ env.MinX = 0;
+ env.MaxX = 1;
+ env.MinY = 0;
+ env.MaxY = 1;
+ MapProjector::projectToPlanar(map, env);
+
+ map->resetCounters();
+ for (int i = 0; i < 10; i++)
+ {
+ NodePtr n(new Node(Status::Unknown1, map->createNextNodeId(), i * 100, 0, 10));
+ n->getTags()["name"] = QString("n%1").arg(i);
+ map->addNode(n);
+ }
+
+ boost::minstd_rand rng;
+ rng.seed(1);
+ RandomNodeDuplicator uut;
+ uut.setRng(rng);
+ uut.setDuplicateSigma(1.0);
+ uut.setMoveMultiplier(0.5);
+ uut.setProbability(0.5);
+ uut.apply(map);
+
+ QSet<long> nids;
+ const NodeMap& nodes = map->getNodes();
+ for (NodeMap::const_iterator it = nodes.begin(); it != nodes.end(); ++it)
+ nids.insert(it->first);
+ QList<long> keys = QList<long>::fromSet(nids);
+
+ qSort(keys);
+
+ // handy for recreating all the CPPUNIT_ASSERT* statements
+// QString str;
+// for (int i = 0; i < keys.size(); i++)
+// {
+// NodePtr n = map->getNode(keys[i]);
+// str += QString("n = map->getNode(keys[%1]);\n").arg(i);
+// str += QString("CPPUNIT_ASSERT_DOUBLES_EQUAL(%1, n->getX(), 1e-3);\n").arg(n->getX());
+// str += QString("CPPUNIT_ASSERT_DOUBLES_EQUAL(%1, n->getY(), 1e-3);\n").arg(n->getY());
+// }
+// LOG_WARN(str);
+
+ NodePtr n;
+ n = map->getNode(keys[0]);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(802.711, n->getX(), 1e-3);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(1.70974, n->getY(), 1e-3);
+ n = map->getNode(keys[1]);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(799.6659, n->getX(), 1e-3);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(4.11058, n->getY(), 1e-3);
+ n = map->getNode(keys[2]);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(901.11255, n->getX(), 1e-3);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(2.79405, n->getY(), 1e-3);
+ n = map->getNode(keys[3]);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(905.09512, n->getX(), 1e-3);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(-4.12888, n->getY(), 1e-3);
+ n = map->getNode(keys[4]);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(900, n->getX(), 1e-3);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(0, n->getY(), 1e-3);
+ n = map->getNode(keys[5]);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(800, n->getX(), 1e-3);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(0, n->getY(), 1e-3);
+ n = map->getNode(keys[6]);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(700, n->getX(), 1e-3);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(0, n->getY(), 1e-3);
+ n = map->getNode(keys[7]);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(600, n->getX(), 1e-3);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(0, n->getY(), 1e-3);
+ n = map->getNode(keys[8]);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(500, n->getX(), 1e-3);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(0, n->getY(), 1e-3);
+ n = map->getNode(keys[9]);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(400, n->getX(), 1e-3);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(0, n->getY(), 1e-3);
+ n = map->getNode(keys[10]);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(300, n->getX(), 1e-3);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(0, n->getY(), 1e-3);
+ n = map->getNode(keys[11]);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(200, n->getX(), 1e-3);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(0, n->getY(), 1e-3);
+ n = map->getNode(keys[12]);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(100, n->getX(), 1e-3);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(0, n->getY(), 1e-3);
+ n = map->getNode(keys[13]);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(0, n->getX(), 1e-3);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(0, n->getY(), 1e-3);
+
+ }
+};
+
+CPPUNIT_TEST_SUITE_NAMED_REGISTRATION(RandomNodeDuplicatorTest, "quick");
+
+}