Split test into two blocks

src/Unittests/unittests_trimesh_split.cc

@@ -34,7 +34,7 @@ class OpenMeshSplitTriangleMesh : public OpenMeshBase {
 /* splits a face that has a property in a triangle mesh with split_copy
  * the property should be copied to the new faces
  */
-TEST_F(OpenMeshSplitTriangleMesh, Split_Triangle_Mesh_1_4) {
+TEST_F(OpenMeshSplitTriangleMesh, Split_Triangle_Mesh_1_4_center) {
 
   mesh_.clear();
 
@@ -107,18 +107,87 @@ TEST_F(OpenMeshSplitTriangleMesh, Split_Triangle_Mesh_1_4) {
 
   EXPECT_EQ(10u, mesh_.n_faces());
 
-  Mesh::FaceHandle boundary_split = mesh_.face_handle(0);
+}
 
-  // split face at boundary
-   mesh_.split(boundary_split);
+/* splits a face that has a property in a triangle mesh with split_copy
+ * the property should be copied to the new faces
+ */
+TEST_F(OpenMeshSplitTriangleMesh, Split_Triangle_Mesh_1_4_boundary) {
 
-   mesh_.garbage_collection();
+  mesh_.clear();
 
-   EXPECT_EQ(15u, mesh_.n_faces());
+  mesh_.request_vertex_status();
+  mesh_.request_edge_status();
+  mesh_.request_face_status();
 
+  // Add some vertices
+  Mesh::VertexHandle vhandle[6];
+
+  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(3, 0, 0));
+  vhandle[4] = mesh_.add_vertex(Mesh::Point(4, 1, 0));
+  vhandle[5] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
+
+  // Add three 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::FaceHandle to_split = 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[3]);
+  mesh_.add_face(face_vhandles);
+
+  face_vhandles.clear();
+
+  face_vhandles.push_back(vhandle[2]);
+  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[1]);
+  face_vhandles.push_back(vhandle[5]);
+  face_vhandles.push_back(vhandle[3]);
+  mesh_.add_face(face_vhandles);
+
+  /* Test setup:
+   *
+   * edge x => halfedge x/x+1
+   * i.e. edge 0 => halfedge 0/1
+   *
+   * 0 --4--- 2 ------ 4
+   *  \      / \      /
+   *   0  0 2   6  2 /
+   *    \  /  1  \  /
+   *     1 ---8--- 3
+   *      \       /
+   *       \  3  /
+   *        \   /
+   *         \ /
+   *          5
+   */
+
+  EXPECT_EQ(4u, mesh_.n_faces());
+
+  // split face at boundary
+  mesh_.split(to_split);
+
+  mesh_.garbage_collection();
+
+  EXPECT_EQ(8u, mesh_.n_faces());
 
 }
 
+
 }