DAMASK_EICMD/python/tests/test_util.py

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import random
import os
import pytest
import numpy as np
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from scipy import stats
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import h5py
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from damask import util
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class TestUtil:
def test_execute_direct(self):
out,err = util.execute('echo test')
assert out=='test\n' and err==''
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def test_execute_env(self):
out,err = util.execute('sh -c "echo $test_for_execute"',env={'test_for_execute':'test'})
assert out=='test\n' and err==''
def test_execute_runtime_error(self):
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with pytest.raises(RuntimeError):
util.execute('false')
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@pytest.mark.parametrize('input,output',
[
([0,-2],[0,-1]),
([-0.5,0.5],[-1,1]),
([1./2.,1./3.],[3,2]),
([2./3.,1./2.,1./3.],[4,3,2]),
])
def test_scale2coprime(self,input,output):
assert np.allclose(util.scale_to_coprime(np.array(input)),
np.array(output).astype(int))
def test_lackofprecision(self):
with pytest.raises(ValueError):
util.scale_to_coprime(np.array([1/333.333,1,1]))
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@pytest.mark.parametrize('rv',[stats.rayleigh(),stats.weibull_min(1.2),stats.halfnorm(),stats.pareto(2.62)])
def test_hybridIA(self,rv):
bins = np.linspace(0,10,100000)
centers = (bins[1:]+bins[:-1])/2
N_samples = bins.shape[0]-1000
dist = rv.pdf(centers)
selected = util.hybrid_IA(dist,N_samples)
dist_sampled = np.histogram(centers[selected],bins)[0]/N_samples*np.sum(dist)
assert np.sqrt(((dist - dist_sampled) ** 2).mean()) < .025 and selected.shape[0]==N_samples
@pytest.mark.parametrize('point,direction,normalize,keepdims,answer',
[
([1,0,0],'z',False,True, [1,0,0]),
([1,0,0],'z',True, False,[1,0]),
([0,1,1],'z',False,True, [0,0.5,0]),
([0,1,1],'y',True, False,[0.41421356,0]),
([1,1,0],'x',False,False,[0.5,0]),
([1,1,1],'y',True, True, [0.3660254, 0,0.3660254]),
])
def test_project_equal_angle(self,point,direction,normalize,keepdims,answer):
assert np.allclose(util.project_equal_angle(np.array(point),direction=direction,
normalize=normalize,keepdims=keepdims),answer)
@pytest.mark.parametrize('point,direction,normalize,keepdims,answer',
[
([1,0,0],'z',False,True, [1,0,0]),
([1,0,0],'z',True, False,[1,0]),
([0,1,1],'z',False,True, [0,0.70710678,0]),
([0,1,1],'y',True, False,[0.5411961,0]),
([1,1,0],'x',False,False,[0.70710678,0]),
([1,1,1],'y',True, True, [0.45970084,0,0.45970084]),
])
def test_project_equal_area(self,point,direction,normalize,keepdims,answer):
assert np.allclose(util.project_equal_area(np.array(point),direction=direction,
normalize=normalize,keepdims=keepdims),answer)
@pytest.mark.parametrize('fro,to,mode,answer',
[
((),(1,),'left',(1,)),
((1,),(7,),'right',(1,)),
((1,2),(1,1,2,2),'right',(1,1,2,1)),
((1,2),(1,1,2,2),'left',(1,1,1,2)),
((1,2,3),(1,1,2,3,4),'right',(1,1,2,3,1)),
((10,2),(10,3,2,2,),'right',(10,1,2,1)),
((10,2),(10,3,2,2,),'left',(10,1,1,2)),
((2,2,3),(2,2,2,3,4),'left',(1,2,2,3,1)),
((2,2,3),(2,2,2,3,4),'right',(2,2,1,3,1)),
])
def test_shapeshifter(self,fro,to,mode,answer):
assert util.shapeshifter(fro,to,mode) == answer
@pytest.mark.parametrize('fro,to,mode',
[
((10,3,4),(10,3,2,2),'left'),
((2,3),(10,3,2,2),'right'),
])
def test_invalid_shapeshifter(self,fro,to,mode):
with pytest.raises(ValueError):
util.shapeshifter(fro,to,mode)
@pytest.mark.parametrize('a,b,answer',
[
((),(1,),(1,)),
((1,),(),(1,)),
((1,),(7,),(1,7)),
((2,),(2,2),(2,2)),
((1,2),(2,2),(1,2,2)),
((1,2,3),(2,3,4),(1,2,3,4)),
((1,2,3),(1,2,3),(1,2,3)),
])
def test_shapeblender(self,a,b,answer):
assert util.shapeblender(a,b) == answer
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@pytest.mark.parametrize('style',[util.emph,util.deemph,util.warn,util.strikeout])
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def test_decorate(self,style):
assert 'DAMASK' in style('DAMASK')
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@pytest.mark.parametrize('complete',[True,False])
def test_D3D_base_group(self,tmp_path,complete):
base_group = ''.join(random.choices('DAMASK', k=10))
with h5py.File(tmp_path/'base_group.dream3d','w') as f:
f.create_group(os.path.join(base_group,'_SIMPL_GEOMETRY'))
if complete:
f[os.path.join(base_group,'_SIMPL_GEOMETRY')].create_dataset('SPACING',data=np.ones(3))
if complete:
assert base_group == util.DREAM3D_base_group(tmp_path/'base_group.dream3d')
else:
with pytest.raises(ValueError):
util.DREAM3D_base_group(tmp_path/'base_group.dream3d')
@pytest.mark.parametrize('complete',[True,False])
def test_D3D_cell_data_group(self,tmp_path,complete):
base_group = ''.join(random.choices('DAMASK', k=10))
cell_data_group = ''.join(random.choices('KULeuven', k=10))
cells = np.random.randint(1,50,3)
with h5py.File(tmp_path/'cell_data_group.dream3d','w') as f:
f.create_group(os.path.join(base_group,'_SIMPL_GEOMETRY'))
f[os.path.join(base_group,'_SIMPL_GEOMETRY')].create_dataset('SPACING',data=np.ones(3))
f[os.path.join(base_group,'_SIMPL_GEOMETRY')].create_dataset('DIMENSIONS',data=cells[::-1])
f[base_group].create_group(cell_data_group)
if complete:
f[os.path.join(base_group,cell_data_group)].create_dataset('data',shape=np.append(cells,1))
if complete:
assert cell_data_group == util.DREAM3D_cell_data_group(tmp_path/'cell_data_group.dream3d')
else:
with pytest.raises(ValueError):
util.DREAM3D_cell_data_group(tmp_path/'cell_data_group.dream3d')
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@pytest.mark.parametrize('full,reduced',[({}, {}),
({'A':{}}, {}),
({'A':{'B':{}}}, {}),
({'A':{'B':'C'}},)*2,
({'A':{'B':{},'C':'D'}}, {'A':{'C':'D'}})])
def test_prune(self,full,reduced):
assert util.dict_prune(full) == reduced
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@pytest.mark.parametrize('full,reduced',[({}, {}),
({'A':{}}, {}),
({'A':'F'}, 'F'),
({'A':{'B':{}}}, {}),
({'A':{'B':'C'}}, 'C'),
({'A':1,'B':2},)*2,
({'A':{'B':'C','D':'E'}}, {'B':'C','D':'E'}),
({'B':'C','D':'E'},)*2,
({'A':{'B':{},'C':'D'}}, {'B':{},'C':'D'})])
def test_flatten(self,full,reduced):
assert util.dict_flatten(full) == reduced
def test_double_Bravais_to_Miller(self):
with pytest.raises(KeyError):
util.Bravais_to_Miller(uvtw=np.ones(4),hkil=np.ones(4))
def test_double_Miller_to_Bravais(self):
with pytest.raises(KeyError):
util.Miller_to_Bravais(uvw=np.ones(4),hkl=np.ones(4))
@pytest.mark.parametrize('vector',np.array([
[1,0,0],
[1,1,0],
[1,1,1],
[1,0,-2],
]))
@pytest.mark.parametrize('kw_Miller,kw_Bravais',[('uvw','uvtw'),('hkl','hkil')])
def test_Miller_Bravais_Miller(self,vector,kw_Miller,kw_Bravais):
assert np.all(vector == util.Bravais_to_Miller(**{kw_Bravais:util.Miller_to_Bravais(**{kw_Miller:vector})}))
@pytest.mark.parametrize('vector',np.array([
[1,0,-1,2],
[1,-1,0,3],
[1,1,-2,-3],
[0,0,0,1],
]))
@pytest.mark.parametrize('kw_Miller,kw_Bravais',[('uvw','uvtw'),('hkl','hkil')])
def test_Bravais_Miller_Bravais(self,vector,kw_Miller,kw_Bravais):
assert np.all(vector == util.Miller_to_Bravais(**{kw_Miller:util.Bravais_to_Miller(**{kw_Bravais:vector})}))