# coding=utf8
from __future__ import absolute_import
import os
from sfepy import data_dir
import six

filename_meshes = ['/meshes/3d/cylinder.mesh',
                   '/meshes/3d/cylinder.vtk',
                   '/meshes/various_formats/small2d.mesh',
                   '/meshes/various_formats/small2d.vtk',
                   '/meshes/various_formats/octahedron.node',
                   '/meshes/various_formats/comsol_tri.txt',
                   '/meshes/various_formats/abaqus_hex.inp',
                   '/meshes/various_formats/abaqus_tet.inp',
                   '/meshes/various_formats/abaqus_quad.inp',
                   '/meshes/various_formats/abaqus_tri.inp',
                   '/meshes/various_formats/abaqus_quad_tri.inp',
                   '/meshes/various_formats/hex4.mesh3d',
                   '/meshes/various_formats/tetra8.mesh3d',
                   '/meshes/various_formats/cube.bdf',
                   '/meshes/various_formats/med_2d_tri_quad.med',
                   '/meshes/various_formats/med_3d_tet_hex.med',
                   '/meshes/various_formats/msh_tri.msh',
                   '/meshes/various_formats/msh_tetra.msh',
                   '/meshes/various_formats/xyz_quad.xyz',
                   '/meshes/various_formats/xyz_tet.xyz']
filename_meshes = [data_dir + name for name in filename_meshes]

def mesh_hook(mesh, mode):
    """
    Define a mesh programmatically.
    """
    if mode == 'read':
        nodes = [[0, 0], [1, 0], [1, 1], [0, 1]]
        nod_ids = [0, 0, 1, 1]
        conns = [[[0, 1, 2], [0, 2, 3]]]
        mat_ids = [[0, 1]]
        descs = ['2_3']

        mesh._set_io_data(nodes, nod_ids, conns, mat_ids, descs)

    elif mode == 'write':
        pass

from sfepy.discrete.fem.meshio import UserMeshIO

filename_meshes.extend([mesh_hook, UserMeshIO(mesh_hook)])

same = [(0, 1), (2, 3)]

import os.path as op
from sfepy.base.base import assert_
from sfepy.base.testing import TestCommon

class Test(TestCommon):
    """Write test names explicitely to impose a given order of evaluation."""
    tests = ['test_read_meshes', 'test_compare_same_meshes',
             'test_read_dimension', 'test_write_read_meshes',
             'test_hdf5_meshio']

    @staticmethod
    def from_conf(conf, options):
        return Test(conf=conf, options=options)

    def test_read_meshes(self):
        """Try to read all listed meshes."""
        from sfepy.discrete.fem import Mesh

        conf_dir = op.dirname(__file__)
        meshes = {}
        for ii, filename in enumerate(filename_meshes):
            self.report('%d. mesh: %s' % (ii + 1, filename))
            mesh = Mesh.from_file(filename, prefix_dir=conf_dir)

            assert_(mesh.dim == (mesh.coors.shape[1]))
            assert_(mesh.n_nod == (mesh.coors.shape[0]))
            assert_(mesh.n_nod == (mesh.cmesh.vertex_groups.shape[0]))
            
assert_(mesh.n_el == mesh.cmesh.num[mesh.cmesh.tdim])