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Tests: Linear TS Job Adapter
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@alongd
alongd committed May 15, 2024
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#!/usr/bin/env python3
# encoding: utf-8

"""
This module contains unit tests of the arc.job.adapters.ts.heuristics module
"""

import unittest

from arc.common import almost_equal_coords
from arc.job.adapters.ts.linear import (average_zmat_params,
get_rxn_weight,
get_weight,
interpolate_isomerization,
)
from arc.reaction import ARCReaction
from arc.species.converter import str_to_xyz, zmat_to_xyz, xyz_to_str

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Unused import Note

Import of 'xyz_to_str' is not used.
Import of 'zmat_to_xyz' is not used.
from arc.species.species import ARCSpecies
from arc.species.zmat import _compare_zmats


class TestHeuristicsAdapter(unittest.TestCase):
"""
Contains unit tests for the HeuristicsAdapter class.
"""

@classmethod
def setUpClass(cls):
"""
A method that is run before all unit tests in this class.
"""
cls.maxDiff = None

def test_average_zmat_params(self):
"""Test the average_zmat_params() function."""
zmat_1 = {'symbols': ('H', 'H'),
'coords': ((None, None, None),
('R_1_0', None, None)),
'vars': {'R_1_0': 0.7},
'map': {0: 0, 1: 1}}
zmat_2 = {'symbols': ('H', 'H'),
'coords': ((None, None, None),
('R_1_0', None, None)),
'vars': {'R_1_0': 1.3},
'map': {0: 0, 1: 1}}
expected_zmat = {'symbols': ('H', 'H'),
'coords': ((None, None, None),
('R_1_0', None, None)),
'vars': {'R_1_0': 1.0},
'map': {0: 0, 1: 1}}
zmat = average_zmat_params(zmat_1, zmat_2)
self.assertTrue(_compare_zmats(zmat, expected_zmat))

expected_zmat = {'symbols': ('H', 'H'),
'coords': ((None, None, None),
('R_1_0', None, None)),
'vars': {'R_1_0': 0.85},
'map': {0: 0, 1: 1}}
zmat = average_zmat_params(zmat_1, zmat_2, weight=0.25)
self.assertTrue(_compare_zmats(zmat, expected_zmat))
zmat = average_zmat_params(zmat_2, zmat_1, weight=0.75)
self.assertTrue(_compare_zmats(zmat, expected_zmat))

zmat_1 = {'symbols': ('C', 'N', 'H', 'H', 'H', 'H', 'H'),
'coords': ((None, None, None), ('R_1_0', None, None), ('R_2|4_0|0', 'A_2|4_0|0_1|1', None),
('R_3|6_1|1', 'A_3|6_1|1_0|0', 'D_3_1_0_2'),
('R_2|4_0|0', 'A_2|4_0|0_1|1', 'D_4_0_1_3'), ('R_5_0', 'A_5_0_1', 'D_5_0_1_4'),
('R_3|6_1|1', 'A_3|6_1|1_0|0', 'D_6_1_0_5')),
'vars': {'R_1_0': 1.451965854148702, 'D_3_1_0_2': 60.83821034525936,
'D_4_0_1_3': 301.30263742432356, 'R_5_0': 1.0936965384360282,
'A_5_0_1': 110.59878027260544, 'D_5_0_1_4': 239.76779188408136,
'D_6_1_0_5': 65.17113681053117, 'R_2|4_0|0': 1.0935188594180785,
'R_3|6_1|1': 1.019169330302324, 'A_2|4_0|0_1|1': 110.20495980110817,
'A_3|6_1|1_0|0': 109.41187648524644},
'map': {0: 0, 1: 1, 2: 2, 3: 5, 4: 3, 5: 4, 6: 6}}
zmat_2 = {'symbols': ('C', 'N', 'H', 'H', 'H', 'H', 'H'),
'coords': ((None, None, None), ('R_1_0', None, None), ('R_2|4_0|0', 'A_2|4_0|0_1|1', None),
('R_3|6_1|1', 'A_3|6_1|1_0|0', 'D_3_1_0_2'),
('R_2|4_0|0', 'A_2|4_0|0_1|1', 'D_4_0_1_3'), ('R_5_0', 'A_5_0_1', 'D_5_0_1_4'),
('R_3|6_1|1', 'A_3|6_1|1_0|0', 'D_6_1_0_5')),
'vars': {'R_1_0': 1.2, 'D_3_1_0_2': 50,
'D_4_0_1_3': 250, 'R_5_0': 1.0936965384360282,
'A_5_0_1': 110.59878027260544, 'D_5_0_1_4': 239.76779188408136,
'D_6_1_0_5': 120, 'R_2|4_0|0': 1.0935188594180785,
'R_3|6_1|1': 1.6, 'A_2|4_0|0_1|1': 110.20495980110817,
'A_3|6_1|1_0|0': 109.41187648524644},
'map': {0: 0, 1: 1, 2: 2, 3: 5, 4: 3, 5: 4, 6: 6}}
expected_zmat = {'symbols': ('C', 'N', 'H', 'H', 'H', 'H', 'H'),
'coords': ((None, None, None), ('R_1_0', None, None), ('R_2|4_0|0', 'A_2|4_0|0_1|1', None),
('R_3|6_1|1', 'A_3|6_1|1_0|0', 'D_3_1_0_2'), ('R_2|4_0|0', 'A_2|4_0|0_1|1', 'D_4_0_1_3'),
('R_5_0', 'A_5_0_1', 'D_5_0_1_4'), ('R_3|6_1|1', 'A_3|6_1|1_0|0', 'D_6_1_0_5')),
'vars': {'R_1_0': 1.3259829270743508, 'D_3_1_0_2': 55.419105172629685,
'D_4_0_1_3': 275.6513187121618, 'R_5_0': 1.0936965384360282,
'A_5_0_1': 110.59878027260544, 'D_5_0_1_4': 239.76779188408136,
'D_6_1_0_5': 92.58556840526558, 'R_2|4_0|0': 1.0935188594180785,
'R_3|6_1|1': 1.309584665151162, 'A_2|4_0|0_1|1': 110.20495980110817,
'A_3|6_1|1_0|0': 109.41187648524644},
'map': {0: 0, 1: 1, 2: 2, 3: 5, 4: 3, 5: 4, 6: 6}}
zmat = average_zmat_params(zmat_1, zmat_2)
self.assertTrue(_compare_zmats(zmat, expected_zmat))

def test_get_weight(self):
"""Test the get_weight() function."""
self.assertEqual(get_weight([0], [0], 4), 0.5) # 4 / 8
self.assertEqual(get_weight([0], [8], 12), 0.75) # 12 / 20
self.assertEqual(get_weight([0], [2], 6), 0.6) # 6 / 10
self.assertEqual(get_weight([10], [0], 30), 0.4) # 20 / 50
self.assertEqual(get_weight([20], [10], 40), 0.4) # 20 / 50
self.assertIsNone(get_weight([20], [None], 40), 0.4) # 20 / 50
self.assertEqual(get_weight([8, 2], [0], 30), 0.4) # 20 / 50
self.assertEqual(get_weight([4, 1], [5.5, 1.5], 11), 0.6) # 6 / 10

def test_get_rxn_weight(self):
"""Test the get_rxn_weight() function."""
rxn_1 = ARCReaction(r_species=[ARCSpecies(label='HO2', smiles='[O]O'),
ARCSpecies(label='NH', smiles='[NH]')],
p_species=[ARCSpecies(label='N', smiles='[N]'),
ARCSpecies(label='H2O2', smiles='OO')])
rxn_1.r_species[0].e0 = 252.0
rxn_1.r_species[1].e0 = 100.5
rxn_1.p_species[0].e0 = 116.0
rxn_1.p_species[1].e0 = 200.3
rxn_1.ts_species = ARCSpecies(label='TS', is_ts=True)
rxn_1.ts_species.e0 = 391.6
self.assertAlmostEquals(get_rxn_weight(rxn_1), 0.3417832)

def test_interpolate_isomerization(self):
"""Test the interpolate_isomerization() function."""
nc3h7_xyz = """C 0.00375165 -0.48895802 -1.20586379
C 0.00375165 -0.48895802 0.28487510
C 0.00375165 0.91997987 0.85403684
H 0.41748586 -1.33492098 -1.74315104
H -0.57506729 0.24145491 -1.76006154
H -0.87717095 -1.03203740 0.64280162
H 0.88948616 -1.02465371 0.64296621
H 0.88512433 1.48038223 0.52412379
H 0.01450405 0.88584135 1.94817394
H -0.88837301 1.47376959 0.54233121"""
ic3h7_xyz = """C -0.40735690 -0.74240205 -0.34312948
C 0.38155377 -0.25604705 0.82450968
C 0.54634593 1.25448345 0.81064511
H 0.00637731 -1.58836501 -0.88041673
H -0.98617584 -0.01198912 -0.89732723
H -1.29710684 -1.29092340 0.08598983
H 1.36955428 -0.72869684 0.81102246
H 1.06044877 1.58846788 -0.09702437
H 1.13774084 1.57830484 1.67308862
H -0.42424546 1.75989927 0.85794283"""
nc3h7 = ARCSpecies(label='nC3H7', smiles='[CH2]CC', xyz=nc3h7_xyz)
ic3h7 = ARCSpecies(label='iC3H7', smiles='C[CH]C', xyz=ic3h7_xyz)
rxn = ARCReaction(r_species=[nc3h7], p_species=[ic3h7])
expected_ts_xyz = str_to_xyz("""C 0.01099731 -0.46789926 -1.15958911
C 0.01099731 -0.46789926 0.33114978
C 0.01099731 0.94103865 0.90031155
H 0.57795661 -1.24174248 -1.65467180
H -0.39690222 0.34527841 -1.69240298
H -1.19440431 -1.28933062 -0.47327539
H 0.89689057 -1.16420498 0.45967951
H 0.76979130 1.33747945 0.33815513
H -0.04544494 0.70455273 1.77835334
H -1.00071642 1.24557408 0.38839197""")
ts_xyz = interpolate_isomerization(rxn, use_weights=False)
self.assertTrue(almost_equal_coords(ts_xyz, expected_ts_xyz))

nc3h7.e0 = 101.55
ic3h7.e0 = 88.91
ts = ARCSpecies(label='TS', is_ts=True, multiplicity=2, xyz=expected_ts_xyz)
ts.e0 = 105
rxn.ts_species = ts
expected_ts_xyz = str_to_xyz("""C 0.01224420 -0.47400672 -1.18787451
C 0.01224420 -0.47400672 0.30286438
C 0.01224420 0.93493122 0.87202615
H 0.47981756 -1.29923732 -1.70742021
H -0.50470551 0.28201158 -1.73526026
H -1.06475721 -1.18141451 0.26785378
H 0.86736552 -1.12118386 0.54383845
H 0.79813573 1.38347069 0.43772483
H -0.03897336 0.76031233 1.86961141
H -0.97425159 1.33180895 0.47825005""")
ts_xyz = interpolate_isomerization(rxn, use_weights=True)
self.assertTrue(almost_equal_coords(ts_xyz, expected_ts_xyz))

@classmethod
def tearDownClass(cls):
"""
A function that is run ONCE after all unit tests in this class.
Delete all project directories created during these unit tests.
"""
pass


if __name__ == '__main__':
unittest.main(testRunner=unittest.TextTestRunner(verbosity=2))

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