diff --git a/src/Unittests/unittests_trimesh_circulator_vertex_vertex.hh b/src/Unittests/unittests_trimesh_circulator_vertex_vertex.hh
index fc9d9203..a3492901 100644
--- a/src/Unittests/unittests_trimesh_circulator_vertex_vertex.hh
+++ b/src/Unittests/unittests_trimesh_circulator_vertex_vertex.hh
@@ -30,3 +30,173 @@ class OpenMeshTrimeshCirculatorVertexVertex : public OpenMeshBase {
  * ====================================================================
  */
 
+
+
+/*
+ * Small VertexFaceOutgoingHalfedgeIterator Test without holes in it
+ */
+TEST_F(OpenMeshTrimeshCirculatorVertexVertex, VertexVertexIncrement) {
+
+  mesh_.clear();
+
+  // Add some vertices
+  Mesh::VertexHandle vhandle[5];
+
+  vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
+  vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
+  vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
+  vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
+  vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
+
+  // Add two faces
+  std::vector<Mesh::VertexHandle> face_vhandles;
+
+  face_vhandles.push_back(vhandle[0]);
+  face_vhandles.push_back(vhandle[1]);
+  face_vhandles.push_back(vhandle[2]);
+  mesh_.add_face(face_vhandles);
+
+  face_vhandles.clear();
+
+  face_vhandles.push_back(vhandle[1]);
+  face_vhandles.push_back(vhandle[3]);
+  face_vhandles.push_back(vhandle[4]);
+  mesh_.add_face(face_vhandles);
+
+  face_vhandles.clear();
+
+  face_vhandles.push_back(vhandle[0]);
+  face_vhandles.push_back(vhandle[3]);
+  face_vhandles.push_back(vhandle[1]);
+  mesh_.add_face(face_vhandles);
+
+  face_vhandles.clear();
+
+  face_vhandles.push_back(vhandle[2]);
+  face_vhandles.push_back(vhandle[1]);
+  face_vhandles.push_back(vhandle[4]);
+  mesh_.add_face(face_vhandles);
+
+  /* Test setup:
+      0 ==== 2
+      |\  0 /|
+      | \  / |
+      |2  1 3|
+      | /  \ |
+      |/  1 \|
+      3 ==== 4 */
+  // Starting vertex is 1->4
+
+
+  // Iterate around vertex 1 at the middle (with holes in between)
+  Mesh::VertexVertexIter vv_it  = mesh_.vv_begin(vhandle[1]);
+  Mesh::VertexVertexIter vv_end = mesh_.vv_end(vhandle[1]);
+
+  EXPECT_EQ(4, vv_it.handle().idx() ) << "Index wrong in VertexVertexIter begin at initialization";
+  EXPECT_EQ(4, vv_end.handle().idx() ) << "Index wrong in VertexVertexIter end at initialization";
+  EXPECT_TRUE(vv_it) << "Iterator invalid in VertexVertexIter at initialization";
+
+  ++vv_it ;
+
+  EXPECT_EQ(3, vv_it.handle().idx() ) << "Index wrong in VertexVertexIter step 1";
+  EXPECT_TRUE(vv_it) << "Iterator invalid in VertexVertexIter at step 1";
+
+  ++vv_it ;
+
+  EXPECT_EQ(0, vv_it.handle().idx() ) << "Index wrong in VertexVertexIter step 2";
+  EXPECT_TRUE(vv_it) << "Iterator invalid in VertexVertexIter at step 2";
+
+  ++vv_it ;
+
+  EXPECT_EQ(2, vv_it.handle().idx() ) << "Index wrong in VertexVertexIter step 3";
+  EXPECT_TRUE(vv_it) << "Iterator invalid in VertexVertexIter at step 3";
+
+  ++vv_it ;
+
+  EXPECT_EQ(4, vv_it.handle().idx() ) << "Index wrong in VertexVertexIter step 4";
+  EXPECT_FALSE(vv_it) << "Iterator still valid in VertexVertexIter at step 4";
+  EXPECT_TRUE( vv_it == vv_end ) << "Miss matched end iterator";
+
+}
+
+/*
+ * Small VertexFaceOutgoingHalfedgeIterator Test at boundary vertex
+ */
+TEST_F(OpenMeshTrimeshCirculatorVertexVertex, VertexVertexBoundaryIncrement) {
+
+  mesh_.clear();
+
+  // Add some vertices
+  Mesh::VertexHandle vhandle[5];
+
+  vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
+  vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
+  vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
+  vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
+  vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
+
+  // Add two faces
+  std::vector<Mesh::VertexHandle> face_vhandles;
+
+  face_vhandles.push_back(vhandle[0]);
+  face_vhandles.push_back(vhandle[1]);
+  face_vhandles.push_back(vhandle[2]);
+  mesh_.add_face(face_vhandles);
+
+  face_vhandles.clear();
+
+  face_vhandles.push_back(vhandle[1]);
+  face_vhandles.push_back(vhandle[3]);
+  face_vhandles.push_back(vhandle[4]);
+  mesh_.add_face(face_vhandles);
+
+  face_vhandles.clear();
+
+  face_vhandles.push_back(vhandle[0]);
+  face_vhandles.push_back(vhandle[3]);
+  face_vhandles.push_back(vhandle[1]);
+  mesh_.add_face(face_vhandles);
+
+  face_vhandles.clear();
+
+  face_vhandles.push_back(vhandle[2]);
+  face_vhandles.push_back(vhandle[1]);
+  face_vhandles.push_back(vhandle[4]);
+  mesh_.add_face(face_vhandles);
+
+  /* Test setup:
+      0 ==== 2
+      |\  0 /|
+      | \  / |
+      |2  1 3|
+      | /  \ |
+      |/  1 \|
+      3 ==== 4 */
+  // Starting vertex is 1->4
+
+
+  // Iterate around vertex 1 at the middle (with holes in between)
+  Mesh::VertexVertexIter vv_it  = mesh_.vv_begin(vhandle[2]);
+  Mesh::VertexVertexIter vv_end = mesh_.vv_end(vhandle[2]);
+
+  EXPECT_EQ(4, vv_it.handle().idx() ) << "Index wrong in VertexVertexIter begin at initialization";
+  EXPECT_EQ(4, vv_end.handle().idx() ) << "Index wrong in VertexVertexIter end at initialization";
+  EXPECT_TRUE(vv_it) << "Iterator invalid in VertexVertexIter at initialization";
+
+  ++vv_it ;
+
+  EXPECT_EQ(1, vv_it.handle().idx() ) << "Index wrong in VertexVertexIter step 1";
+  EXPECT_TRUE(vv_it) << "Iterator invalid in VertexVertexIter at step 1";
+
+  ++vv_it ;
+
+  EXPECT_EQ(0, vv_it.handle().idx() ) << "Index wrong in VertexVertexIter step 2";
+  EXPECT_TRUE(vv_it) << "Iterator invalid in VertexVertexIter at step 2";
+
+  ++vv_it ;
+
+  EXPECT_EQ(4, vv_it.handle().idx() ) << "Index wrong in VertexVertexIter step 3";
+  EXPECT_FALSE(vv_it) << "Iterator invalid in VertexVertexIter at step 3";
+  EXPECT_TRUE( vv_it == vv_end ) << "Miss matched end iterator";
+
+}