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testing forward <-> backward conversion

This commit is contained in:
Martin Diehl 2019-12-08 21:05:34 +01:00
parent 21431295fb
commit b56864552f
1 changed files with 12 additions and 0 deletions
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12
python/tests/test_grid_filters.py
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@ -24,6 +24,18 @@ class TestGridFilters:
n = grid_filters.node_coord0(grid,size) + size/grid*.5 n = grid_filters.node_coord0(grid,size) + size/grid*.5
assert np.allclose(c,n) assert np.allclose(c,n)
@pytest.mark.parametrize('mode',[('cell'),('node')])
def test_grid_DNA(self,mode):
"""Ensure that xx_coord0_2_DNA is the inverse of xx_coord0."""
grid = np.random.randint(8,32,(3))
size = np.random.random(3)
origin = np.random.random(3)
coord0 = eval('grid_filters.{}_coord0(grid,size,origin)'.format(mode)) # noqa
_grid,_size,_origin = eval('grid_filters.{}_coord0_2_DNA(coord0.reshape((-1,3)))'.format(mode))
assert np.allclose(grid,_grid) and np.allclose(size,_size) and np.allclose(origin,_origin)
@pytest.mark.parametrize('mode',[('cell'),('node')]) @pytest.mark.parametrize('mode',[('cell'),('node')])
def test_displacement_avg_vanishes(self,mode): def test_displacement_avg_vanishes(self,mode):
"""Ensure that random fluctuations in F do not result in average displacement.""" """Ensure that random fluctuations in F do not result in average displacement."""