test_helpers.h

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/*
 * MAST: Multidisciplinary-design Adaptation and Sensitivity Toolkit
 * Copyright (C) 2013-2020  Manav Bhatia and MAST authors
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#ifndef __test__test_helpers__
#define __test__test_helpers__

#include "base/mast_data_types.h"
#include "elasticity/structural_element_base.h"
#include "base/physics_discipline_base.h"
#include "libmesh/point.h"
#include "libmesh/face_quad4.h"

namespace TEST {

    std::vector<double> eigen_matrix_to_std_vector(RealMatrixX M);


    Real get_shoelace_area(RealMatrixX X);

    void approximate_internal_jacobian_with_finite_difference(
            MAST::StructuralElementBase& elem,
            const RealVectorX& initial_elem_solution,
            RealMatrixX& jacobian);


    void approximate_side_external_jacobian_with_finite_difference(
            MAST::StructuralElementBase& elem,
            MAST::PhysicsDisciplineBase& discipline,
            const RealVectorX& initial_elem_solution,
            RealMatrixX& jacobian);

    void approximate_volume_external_jacobian_with_finite_difference(
            MAST::StructuralElementBase& elem,
            MAST::PhysicsDisciplineBase& discipline,
            const RealVectorX& initial_elem_solution,
            RealMatrixX& jacobian);

    void approximate_inertial_jacobian_with_finite_difference(
            MAST::StructuralElementBase& elem,
            const RealVectorX& initial_elem_solution,
            RealMatrixX& jacobian);


    void approximate_thermal_jacobian_with_finite_difference(
                                        MAST::StructuralElementBase& elem,
                                        const RealVectorX& initial_elem_solution,
                                        RealMatrixX& jacobian,
                                        MAST::BoundaryConditionBase& thermal_bc);


    void transform_element(libMesh::MeshBase& mesh, const RealMatrixX X0,
                           Real shift_x, Real shift_y, Real shift_z,
                           Real scale_x, Real scale_y,
                           Real rotation_x, Real rotation_y, Real rotation_z,
                           Real shear_x = 0, Real shear_y = 0);
}
#endif // __test__test_helpers__