1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
"""Unit tests for MeshFunctions"""
# Copyright (C) 2011 Garth N. Wells
#
# This file is part of DOLFIN.
#
# DOLFIN 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 3 of the License, or
# (at your option) any later version.
#
# DOLFIN 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 DOLFIN. If not, see <http://www.gnu.org/licenses/>.
import pytest
import numpy.random
from dolfin import *
from dolfin_utils.test import fixture, skip_in_parallel
@pytest.fixture(params=range(4))
def name(request):
names = [3, 0, 1, 2]
return names[request.param]
@pytest.fixture(params=range(4))
def tp(request):
tps = ['int', 'size_t', 'bool', 'double']
return tps[request.param]
@fixture
def mesh():
return UnitCubeMesh(3, 3, 3)
@fixture
def funcs(mesh):
names = [3, 0, 1, 2]
tps = ['int', 'size_t', 'bool', 'double']
funcs = {}
for tp in tps:
for name in names:
funcs[(tp, name)] = eval("MeshFunction('%s', mesh, %d)" % (tp, name))
return funcs
@fixture
def cube():
return UnitCubeMesh(8, 8, 8)
@fixture
def f(cube):
return MeshFunction('int', cube, 0)
def test_size(tp, name, funcs, mesh):
if name == 0:
a = len(funcs[(tp, name)])
b = mesh.num_vertices()
assert a == b
else:
a = len(funcs[(tp, name)])
b = mesh.num_entities(name)
assert a == b
def test_access_type(tp, name, funcs):
type_dict = dict(int=int, size_t=int, double=float, bool=bool)
assert isinstance(funcs[(tp, name)][0], type_dict[tp])
def test_numpy_access(funcs, tp, name):
values = funcs[(tp, name)].array()
values[:] = numpy.random.rand(len(values))
assert all(values[i] == funcs[(tp, name)][i] for i in range(len(values)))
def test_setvalues(tp, funcs, name):
if tp != 'bool':
with pytest.raises(TypeError):
funcs[(tp, name)].__setitem__(len(funcs[(tp, name)])-1, "jada")
def test_Create(cube):
"""Create MeshFunctions."""
v = MeshFunction("size_t", cube, 0)
assert v.size() == cube.num_vertices()
v = MeshFunction("size_t", cube, 1)
assert v.size() == cube.num_edges()
v = MeshFunction("size_t", cube, 2)
assert v.size() == cube.num_facets()
v = MeshFunction("size_t", cube, 3)
assert v.size() == cube.num_cells()
def test_CreateAssign(cube):
"""Create MeshFunctions with value."""
i = 10
v = MeshFunction("size_t", cube, 0, i)
assert v.size() == cube.num_vertices()
assert v[0] == i
v = MeshFunction("size_t", cube, 1, i)
assert v.size() == cube.num_edges()
assert v[0] == i
v = MeshFunction("size_t", cube, 2, i)
assert v.size() == cube.num_facets()
assert v[0] == i
v = MeshFunction("size_t", cube, 3, i)
assert v.size() == cube.num_cells()
assert v[0] == i
def test_Assign(f, cube):
f = f
f[3] = 10
v = Vertex(cube, 3)
assert f[v] == 10
@skip_in_parallel
def test_meshfunction_where_equal():
mesh = UnitSquareMesh(2, 2)
cf = MeshFunction("size_t", mesh, mesh.topology().dim())
cf.set_all(1)
cf[0] = 3
cf[3] = 3
assert list(cf.where_equal(3)) == [0, 3]
assert list(cf.where_equal(1)) == [1, 2, 4, 5, 6, 7]
ff = MeshFunction("size_t", mesh, mesh.topology().dim()-1)
ff.set_all(0)
ff[0] = 1
ff[2] = 3
ff[3] = 3
assert list(ff.where_equal(1)) == [0]
assert list(ff.where_equal(3)) == [2, 3]
assert list(ff.where_equal(0)) == [1] + list(range(4, ff.size()))
vf = MeshFunction("size_t", mesh, 0)
vf.set_all(3)
vf[1] = 1
vf[2] = 1
assert list(vf.where_equal(1)) == [1, 2]
assert list(vf.where_equal(3)) == [0] + list(range(3, vf.size()))
|
