def test_scale(self):
wks = SimulatedDensityOfStates(PHONONFile=self._phonon_file,
Scale=10)
ref = SimulatedDensityOfStates(PHONONFile=self._phonon_file)
ref = Scale(ref, Factor=10)
self.assertTrue(CompareWorkspaces(wks, ref)[0])
def test_scale(self):
wks = SimulatedDensityOfStates(PHONONFile=self._phonon_file,
Scale=10)
ref = SimulatedDensityOfStates(PHONONFile=self._phonon_file)
ref = Scale(ref, Factor=10)
self.assertEqual(CheckWorkspacesMatch(wks, ref), 'Success!')
def test_bin_width(self):
import math
ref = SimulatedDensityOfStates(PHONONFile=self._phonon_file)
wks = SimulatedDensityOfStates(PHONONFile=self._phonon_file,
BinWidth=2)
size = wks.blocksize()
ref_size = ref.blocksize()
self.assertEquals(size, math.ceil(ref_size / 2.0))
def test_sum_partial_contributions(self):
spec_type = 'DOS'
tolerance = 1e-10
summed = SimulatedDensityOfStates(PHONONFile=self._phonon_file,
SpectrumType=spec_type,
Ions='H,C,O',
SumContributions=True)
total = SimulatedDensityOfStates(PHONONFile=self._phonon_file,
SpectrumType=spec_type)
self.assertTrue(CompareWorkspaces(summed, total, tolerance)[0])
def test_sum_partial_contributions_cross_section_scale(self):
spec_type = 'DOS'
tolerance = 1e-10
summed = SimulatedDensityOfStates(PHONONFile=self._phonon_file,
SpectrumType=spec_type,
Ions='H,C,O',
SumContributions=True,
ScaleByCrossSection='Incoherent')
total = SimulatedDensityOfStates(PHONONFile=self._phonon_file,
SpectrumType=spec_type,
ScaleByCrossSection='Incoherent')
self.assertTrue(CompareWorkspaces(summed, total, tolerance)[0])
def test_bond_table(self):
wks = SimulatedDensityOfStates(CASTEPFile=self._castep_file,
SpectrumType='BondTable')
self.assertTrue(isinstance(wks, ITableWorkspace))
self.assertEqual(wks.columnCount(), 6)
self.assertEqual(wks.rowCount(), 74)
def test_lorentzian_function(self):
wks = SimulatedDensityOfStates(PHONONFile=self._phonon_file,
Function='Lorentzian')
self.assertEquals(wks.getNumberHistograms(), 2)
v_axis_values = wks.getAxis(1).extractValues()
self.assertEquals(v_axis_values[0], 'Lorentzian')
self.assertEquals(v_axis_values[1], 'Stick')
def test_ir_active(self):
spec_type = 'IR_Active'
wks = SimulatedDensityOfStates(PHONONFile=self._phonon_file,
SpectrumType=spec_type)
self.assertEquals(wks.getNumberHistograms(), 2)
v_axis_values = wks.getAxis(1).extractValues()
self.assertEquals(v_axis_values[0], 'Gaussian')
self.assertEquals(v_axis_values[1], 'Stick')
def test_partial(self):
spec_type = 'DOS'
wks = SimulatedDensityOfStates(PHONONFile=self._phonon_file,
SpectrumType=spec_type,
Ions='H,C,O')
workspaces = wks.getNames()
self.assertEquals(len(workspaces), 3)
def test_partial_cross_section_scale(self):
spec_type = 'DOS'
wks = SimulatedDensityOfStates(PHONONFile=self._phonon_file,
SpectrumType=spec_type,
Ions='H,C,O',
ScaleByCrossSection='Incoherent')
workspaces = wks.getNames()
self.assertEquals(len(workspaces), 3)
def test_isotope_element_indices_loading(self):
"""
"""
wks_grp = SimulatedDensityOfStates(PHONONFile=self._isotope_phonon,
SpectrumType='DOS',
CalculateIonIndices=True,
Ions='H:P,C:P')
self.assertEqual(2, len(wks_grp))
self.assertTrue(_is_name_in_group(wks_group=wks_grp, name_to_find='wks_grp_C(13)_0'))
self.assertTrue(_is_name_in_group(wks_group=wks_grp, name_to_find='wks_grp_H(2)_1'))
def test_isotopes_are_parsed_correctly(self):
"""
Test that isotopes in the file in the format `element:P` are valid
"""
wks_grp = SimulatedDensityOfStates(PHONONFile=self._isotope_phonon,
SpectrumType='DOS',
Ions='H:P,C:P,O')
self.assertEqual(3, wks_grp.size())
self.assertTrue(_is_name_material_in_group(wks_group = wks_grp, \
name_to_find = 'wks_grp_C(13)', material_to_find = '(C13)'))
def test_zero_threshold(self):
import numpy as np
wks = SimulatedDensityOfStates(PHONONFile=self._phonon_file,
ZeroThreshold=20)
x_data = wks.readX(0)
y_data = wks.readY(0)
mask = np.where(x_data < 20)
self.assertEquals(sum(y_data[mask]), 0)
def test_non_isotpe_element_indices_loading(self):
"""
Test that the individual indices for each element can be loaded seperately
Tests parse_chemical_and_ws_name for non-isotope + indices
"""
wks_grp = SimulatedDensityOfStates(PHONONFile=self._phonon_file,
SpectrumType='DOS',
CalculateIonIndices=True,
Ions='H,C,O')
self.assertEqual(20, len(wks_grp))
self.assertTrue(_is_name_in_group(wks_group=wks_grp, name_to_find='wks_grp_H_0'))
self.assertTrue(_is_name_in_group(wks_group=wks_grp, name_to_find='wks_grp_C_4'))
self.assertTrue(_is_name_in_group(wks_group=wks_grp, name_to_find='wks_grp_O_12'))
def test_ion_table(self):
wks = SimulatedDensityOfStates(PHONONFile=self._phonon_file,
SpectrumType='IonTable')
self.assertTrue(isinstance(wks, ITableWorkspace))
self.assertEqual(wks.columnCount(), 10)
self.assertEqual(wks.rowCount(), 20)
all_species = wks.column('Species')
self.assertEqual(all_species.count('H'), 4)
self.assertEqual(all_species.count('C'), 8)
self.assertEqual(all_species.count('O'), 8)
def runTest(self):
with tempfile.TemporaryDirectory() as tmp_prefix:
if not euphonic_available():
self._install_euphonic_to_tmp_prefix(tmp_prefix)
import pint # noqa: F401
import euphonic # noqa: F401
SimulatedDensityOfStates(ForceConstantsFile=find_file('phonopy-Al.yaml'),
Function='Gaussian',
SpectrumType='DOS',
OutputWorkspace='phonopy-Al_DOS')
def test_bin_ranges_are_correct(self):
"""
Test that the bin ranges are correct when draw peak function is called
"""
bin_width = 3
wks_grp = SimulatedDensityOfStates(PHONONFile=self._phonon_file,
SpectrumType='DOS',
BinWidth=bin_width,
Ions='H,C,O')
expected_x_min = -0.051481
for idx in range(wks_grp.getNumberOfEntries()):
ws = wks_grp.getItem(idx)
self.assertAlmostEqual(expected_x_min,ws.readX(0)[0])
self.assertAlmostEqual(bin_width,(ws.readX(0)[1] - ws.readX(0)[0]))
def test_peak_width_function(self):
wks = SimulatedDensityOfStates(PHONONFile=self._phonon_file,
PeakWidth='0.1*energy')
self.assertEquals(wks.getNumberHistograms(), 2)
def runTest(self):
SimulatedDensityOfStates(CASTEPFile=find_file('Na2SiF6_CASTEP.phonon'),
Function='Gaussian',
SpectrumType='DOS',
OutputWorkspace='Na2SiF6_DOS')
def test_castep_load(self):
wks = SimulatedDensityOfStates(CASTEPFile=self._castep_file)
self.assertEquals(wks.getNumberHistograms(), 2)
v_axis_values = wks.getAxis(1).extractValues()
self.assertEquals(v_axis_values[0], 'Gaussian')
self.assertEquals(v_axis_values[1], 'Stick')
def test_phonon_load(self):
wks = SimulatedDensityOfStates(PHONONFile=self._phonon_file)
self.assertEqual(wks.getNumberHistograms(), 2)
v_axis_values = wks.getAxis(1).extractValues()
self.assertEqual(v_axis_values[0], 'Gaussian')
self.assertEqual(v_axis_values[1], 'Stick')
def test_peak_width(self):
wks = SimulatedDensityOfStates(PHONONFile=self._phonon_file,
PeakWidth='0.3')
self.assertEqual(wks.getNumberHistograms(), 2)
def test_temperature(self):
wks = SimulatedDensityOfStates(PHONONFile=self._phonon_file,
Temperature=50)
self.assertEquals(wks.getNumberHistograms(), 2)