MeshExtruderTest Class Reference

Inheritance diagram for MeshExtruderTest:

Classes
class	QueryElemSubdomainID

Public Member Functions
	LIBMESH_CPPUNIT_TEST_SUITE (MeshExtruderTest)
	The goal of this test is to verify proper operation of the Mesh Extruder with the optional object callback for setting custom subdomain IDs.
	CPPUNIT_TEST (testExtruder)
	CPPUNIT_TEST_SUITE_END ()
void	setUp ()
void	tearDown ()
void	testExtruder ()

Detailed Description

Definition at line 12 of file mesh_extruder.C.

Member Function Documentation

CPPUNIT_TEST()

MeshExtruderTest::CPPUNIT_TEST

(

testExtruder

)

CPPUNIT_TEST_SUITE_END()

MeshExtruderTest::CPPUNIT_TEST_SUITE_END

(

)

LIBMESH_CPPUNIT_TEST_SUITE()

MeshExtruderTest::LIBMESH_CPPUNIT_TEST_SUITE

(

MeshExtruderTest

)

The goal of this test is to verify proper operation of the Mesh Extruder with the optional object callback for setting custom subdomain IDs.

We pass a custom object for generating subdomains based on the old element ID and the current layer and assert the proper values.

setUp()

void MeshExtruderTest::setUp ( )

inline

Definition at line 42 of file mesh_extruder.C.

{}

tearDown()

void MeshExtruderTest::tearDown ( )

inline

Definition at line 44 of file mesh_extruder.C.

{}

testExtruder()

void MeshExtruderTest::testExtruder ( )

inline

The test mesh is designed to be square with the subdomain corresponding to the element number. We will use this to assert the correct pattern from the custom extruder.

Definition at line 46 of file mesh_extruder.C.

  {
    LOG_UNIT_TEST;
 
    ReplicatedMesh src_mesh(*TestCommWorld, /*dim=*/2);
 
    const unsigned int n_elems_per_side = 4;
    const unsigned int num_layers = 4;
    const unsigned int n_elems_per_layer = n_elems_per_side * n_elems_per_side;
 
 
    MeshTools::Generation::build_square(src_mesh, n_elems_per_side, n_elems_per_side);
    for (unsigned int i=0; i<n_elems_per_layer; ++i)
      {
        // Retrieve the element from the mesh by ID to guarantee proper ordering instead of with iterators
        Elem & elem = src_mesh.elem_ref(i);
        elem.subdomain_id() = i;
      }
 
    ReplicatedMesh dest_mesh(*TestCommWorld, /*dim=*/3);
 
    RealVectorValue extrusion_vector(0, 0, 1);
 
    QueryElemSubdomainID new_elem_subdomain_id;
 
    MeshTools::Generation::build_extrusion(dest_mesh, src_mesh, num_layers, extrusion_vector, &new_elem_subdomain_id);
 
    for (unsigned int i=0; i<n_elems_per_layer * num_layers; ++i)
      {
        // Retrieve the element from the mesh by ID to guarantee proper ordering instead of with iterators
        Elem & elem = dest_mesh.elem_ref(i);
 
        CPPUNIT_ASSERT_EQUAL(static_cast<unsigned int>(elem.subdomain_id()), i%n_elems_per_layer + i/n_elems_per_layer /* integer division */);
      }
  }

References libMesh::MeshTools::Generation::build_extrusion(), libMesh::MeshTools::Generation::build_square(), libMesh::MeshBase::elem_ref(), libMesh::Elem::subdomain_id(), and TestCommWorld.

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The documentation for this class was generated from the following file:

• tests/mesh/mesh_extruder.C