Page Menu
Home
c4science
Search
Configure Global Search
Log In
Files
F79234271
python_binding_tests.py
No One
Temporary
Actions
Download File
Edit File
Delete File
View Transforms
Subscribe
Mute Notifications
Award Token
Subscribers
None
File Metadata
Details
File Info
Storage
Attached
Created
Sun, Aug 25, 10:04
Size
5 KB
Mime Type
text/x-python
Expires
Tue, Aug 27, 10:04 (2 d)
Engine
blob
Format
Raw Data
Handle
20139155
Attached To
rMUSPECTRE µSpectre
python_binding_tests.py
View Options
#!/usr/bin/env python3
"""
file python_binding_tests.py
@author Till Junge <till.junge@epfl.ch>
@date 09 Jan 2018
@brief Unit tests for python bindings
@section LICENCE
Copyright © 2018 Till Junge
µSpectre is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3, or (at
your option) any later version.
µSpectre 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
"""
import
unittest
import
numpy
as
np
from
python_test_imports
import
µ
from
python_fft_tests
import
FFT_Check
from
python_projection_tests
import
*
from
python_material_linear_elastic3_test
import
MaterialLinearElastic3_Check
class
SystemCheck
(
unittest
.
TestCase
):
def
test_Construction
(
self
):
"""
Simple check for system constructors
"""
resolution
=
[
5
,
7
]
lengths
=
[
5.2
,
8.3
]
formulation
=
µ
.
Formulation
.
small_strain
try
:
sys
=
µ
.
SystemFactory
(
resolution
,
lengths
,
formulation
)
mat
=
µ
.
material
.
MaterialLinearElastic1_2d
.
make
(
sys
,
"material"
,
210e9
,
.
33
)
except
Exception
as
err
:
print
(
err
)
raise
err
class
MaterialLinearElastic1_2dCheck
(
unittest
.
TestCase
):
def
setUp
(
self
):
self
.
resolution
=
[
5
,
7
]
self
.
lengths
=
[
5.2
,
8.3
]
self
.
formulation
=
µ
.
Formulation
.
small_strain
self
.
sys
=
µ
.
SystemFactory
(
self
.
resolution
,
self
.
lengths
,
self
.
formulation
)
self
.
mat
=
µ
.
material
.
MaterialLinearElastic1_2d
.
make
(
self
.
sys
,
"material"
,
210e9
,
.
33
)
def
test_add_material
(
self
):
self
.
mat
.
add_pixel
([
2
,
1
])
class
SolverCheck
(
unittest
.
TestCase
):
def
setUp
(
self
):
self
.
resolution
=
[
3
,
3
]
#[5,7]
self
.
lengths
=
[
3.
,
3.
]
#[5.2, 8.3]
self
.
formulation
=
µ
.
Formulation
.
finite_strain
self
.
sys
=
µ
.
SystemFactory
(
self
.
resolution
,
self
.
lengths
,
self
.
formulation
)
self
.
hard
=
µ
.
material
.
MaterialLinearElastic1_2d
.
make
(
self
.
sys
,
"hard"
,
210e9
,
.
33
)
self
.
soft
=
µ
.
material
.
MaterialLinearElastic1_2d
.
make
(
self
.
sys
,
"soft"
,
70e9
,
.
33
)
def
test_solve
(
self
):
for
i
,
pixel
in
enumerate
(
self
.
sys
):
if
i
<
3
:
self
.
hard
.
add_pixel
(
pixel
)
else
:
self
.
soft
.
add_pixel
(
pixel
)
self
.
sys
.
initialise
()
tol
=
1e-6
Del0
=
np
.
array
([[
0
,
.
1
],
[
0
,
0
]])
maxiter
=
100
verbose
=
0
solver
=
µ
.
solvers
.
SolverCG
(
self
.
sys
,
tol
,
maxiter
,
verbose
)
r
=
µ
.
solvers
.
de_geus
(
self
.
sys
,
Del0
,
solver
,
tol
,
verbose
)
#print(r)
class
EigenStrainCheck
(
unittest
.
TestCase
):
def
setUp
(
self
):
self
.
resolution
=
[
3
,
3
]
#[5,7]
self
.
lengths
=
[
3.
,
3.
]
#[5.2, 8.3]
self
.
formulation
=
µ
.
Formulation
.
small_strain
self
.
cell1
=
µ
.
SystemFactory
(
self
.
resolution
,
self
.
lengths
,
self
.
formulation
)
self
.
cell2
=
µ
.
SystemFactory
(
self
.
resolution
,
self
.
lengths
,
self
.
formulation
)
self
.
mat1
=
µ
.
material
.
MaterialLinearElastic1_2d
.
make
(
self
.
cell1
,
"simple"
,
210e9
,
.
33
)
self
.
mat2
=
µ
.
material
.
MaterialLinearElastic2_2d
.
make
(
self
.
cell2
,
"eigen"
,
210e9
,
.
33
)
def
test_solve
(
self
):
verbose_test
=
False
if
verbose_test
:
print
(
"start test_solve"
)
grad
=
np
.
array
([[
1.1
,
.
2
],
[
.
3
,
1.5
]])
gl_strain
=
-
0.5
*
(
grad
.
T
.
dot
(
grad
)
-
np
.
eye
(
2
))
gl_strain
=
-
0.5
*
(
grad
.
T
+
grad
-
2
*
np
.
eye
(
2
))
grad
=
-
gl_strain
if
verbose_test
:
print
(
"grad =
\n
{}
\n
gl_strain =
\n
{}"
.
format
(
grad
,
gl_strain
))
for
i
,
pixel
in
enumerate
(
self
.
cell1
):
self
.
mat1
.
add_pixel
(
pixel
)
self
.
mat2
.
add_pixel
(
pixel
,
gl_strain
)
self
.
cell1
.
initialise
()
self
.
cell2
.
initialise
()
tol
=
1e-6
Del0_1
=
grad
Del0_2
=
np
.
zeros_like
(
grad
)
maxiter
=
2
verbose
=
0
def
solve
(
cell
,
grad
):
solver
=
µ
.
solvers
.
SolverCG
(
cell
,
tol
,
maxiter
,
verbose
)
r
=
µ
.
solvers
.
newton_cg
(
cell
,
grad
,
solver
,
tol
,
tol
,
verbose
)
return
r
results
=
[
solve
(
cell
,
del0
)
for
(
cell
,
del0
)
in
zip
((
self
.
cell1
,
self
.
cell2
),
(
Del0_1
,
Del0_2
))]
P1
=
results
[
0
]
.
stress
P2
=
results
[
1
]
.
stress
error
=
np
.
linalg
.
norm
(
P1
-
P2
)
/
np
.
linalg
.
norm
(
.
5
*
(
P1
+
P2
))
if
verbose_test
:
print
(
"cell 1, no eigenstrain"
)
print
(
"P1:
\n
{}"
.
format
(
P1
[:,
0
]))
print
(
"F1:
\n
{}"
.
format
(
results
[
0
]
.
grad
[:,
0
]))
print
(
"cell 2, with eigenstrain"
)
print
(
"P2:
\n
{}"
.
format
(
P2
[:,
0
]))
print
(
"F2:
\n
{}"
.
format
(
results
[
1
]
.
grad
[:,
0
]))
print
(
"end test_solve"
)
self
.
assertLess
(
error
,
tol
)
if
__name__
==
'__main__'
:
unittest
.
main
()
Event Timeline
Log In to Comment