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tests.py
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tests.py
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import unittest
from numpy import amin, amax, ndarray
import os
from jcamp import jcamp_calc_xsec, jcamp_readfile, jcamp_parse
import pdb
class TestJcamp(unittest.TestCase):
def assertAlmostEqualRelative(self, val1, val2, tolerance=1.0e-2):
diff = float(abs(val1 - val2))
if val1 and (diff / val1 > tolerance) and (diff / val2 > tolerance):
raise Exception("%s is not close enough to %s" % (val1, val2))
return(True)
def test_xy_minmax(self, testdict={}):
if not testdict:
return
## Note that mass spectra JDX files seem to be more complex, and current parsing fails on some assumptions.
self.assertIsInstance(testdict['x'], ndarray)
self.assertIsInstance(testdict['y'], ndarray)
self.assertEqual(len(testdict['x']), len(testdict['y']))
if (len(testdict['x']) > 0) and ('minx' in testdict):
self.assertEqual(len(testdict['x']), testdict['npoints'])
self.assertAlmostEqualRelative(amin(testdict['x']), testdict['minx'])
self.assertAlmostEqualRelative(amin(testdict['y']), testdict['miny'])
self.assertAlmostEqualRelative(amax(testdict['x']), testdict['maxx'])
self.assertAlmostEqualRelative(amax(testdict['y']), testdict['maxy'])
elif ('children' in testdict):
for child in testdict['children']:
if ('minx' in testdict):
self.assertAlmostEqualRelative(amin(child['x']), child['minx'])
self.assertAlmostEqualRelative(amin(child['y']), child['miny'])
self.assertAlmostEqualRelative(amax(child['x']), child['maxx'])
self.assertAlmostEqualRelative(amax(child['y']), child['maxy'])
def test_read_IR(self):
for root, dirs, files in os.walk("./data/infrared_spectra"):
for filename in files:
full_filename = os.path.join(root, filename)
print(full_filename)
jcamp_dict = jcamp_readfile(full_filename)
self.test_xy_minmax(jcamp_dict)
def test_read_raman(self):
for root, dirs, files in os.walk("./data/raman_spectra"):
for filename in files:
full_filename = os.path.join(root, filename)
print(full_filename)
jcamp_dict = jcamp_readfile(full_filename)
self.test_xy_minmax(jcamp_dict)
def test_read_hnmr_spectra(self):
for root, dirs, files in os.walk("./data/hnmr_spectra"):
for filename in files:
full_filename = os.path.join(root, filename)
print(full_filename)
jcamp_dict = jcamp_readfile(full_filename)
self.test_xy_minmax(jcamp_dict)
def test_read_uv(self):
for root, dirs, files in os.walk("./data/uvvus_spectra"):
for filename in files:
full_filename = os.path.join(root, filename)
print(full_filename)
jcamp_dict = jcamp_readfile(full_filename)
self.test_xy_minmax(jcamp_dict)
def test_read_mass(self):
for root, dirs, files in os.walk("./data/mass_spectra"):
for filename in files:
full_filename = os.path.join(root, filename)
print(full_filename)
jcamp_dict = jcamp_readfile(full_filename)
self.test_xy_minmax(jcamp_dict)
def test_line_parse(self):
## Tests from http://wwwchem.uwimona.edu.jm/software/jcampdx.html
line = "99 98 97 96 98 93"
self.assertEqual(jcamp_parse(line), [99, 98, 97, 96, 98, 93])
line = "99,98,97,96,98,93"
self.assertEqual(jcamp_parse(line), [99, 98, 97, 96, 98, 93])
line = "99+98+97+96+98+93"
self.assertEqual(jcamp_parse(line), [99, 98, 97, 96, 98, 93])
line = "99I8I7I6I8I3"
self.assertEqual(jcamp_parse(line), [99, 98, 97, 96, 98, 93])
line = "99jjjKn"
self.assertEqual(jcamp_parse(line), [99, 98, 97, 96, 98, 93])
line = "99jUKn"
self.assertEqual(jcamp_parse(line), [99, 98, 97, 96, 98, 93])
def test_spec_line_parse(self):
# Tests from http://www.jcamp-dx.org/drafts/JCAMP6_2b%20Draft.pdf
line = "1000 2000 2001 2002 2003 2003 2003"
self.assertEqual(jcamp_parse(line), [1000, 2000, 2001, 2002, 2003, 2003, 2003])
line = "+1000+2000+2001+2002+2003+2003+2003"
self.assertEqual(jcamp_parse(line), [1000, 2000, 2001, 2002, 2003, 2003, 2003])
line = "A000B000B001B002B003B003B003"
self.assertEqual(jcamp_parse(line), [1000, 2000, 2001, 2002, 2003, 2003, 2003])
line = "A000J000JJJ%%"
self.assertEqual(jcamp_parse(line), [1000, 2000, 2001, 2002, 2003, 2003, 2003])
line = "A000J000JU%%"
self.assertEqual(jcamp_parse(line), [1000, 2000, 2001, 2002, 2003, 2003, 2003])
def test_jcamp_readfile_dict(self):
filename = './data/infrared_spectra/methane.jdx'
jcamp_dict = jcamp_readfile(filename)
self.assertEqual(jcamp_dict['origin'], 'DOW CHEMICAL COMPANY')
self.assertEqual(jcamp_dict['deltax'], 0.935748)
self.assertEqual(jcamp_dict['sampling procedure'], 'TRANSMISSION')
self.assertEqual(jcamp_dict['firstx'], 449.47)
self.assertEqual(jcamp_dict['firsty'], 0.953)
self.assertEqual(jcamp_dict['data type'], 'INFRARED SPECTRUM')
self.assertEqual(jcamp_dict['owner'], 'COBLENTZ SOCIETY')
self.assertEqual(jcamp_dict['maxx'], 3801.32)
self.assertEqual(jcamp_dict['maxy'], 1.03697)
self.assertEqual(jcamp_dict['end'], '')
self.assertEqual(jcamp_dict['title'], 'METHANE')
self.assertEqual(jcamp_dict['lastx'], 3801.32)
self.assertEqual(jcamp_dict['state'], 'GAS')
self.assertEqual(jcamp_dict['yunits'], 'TRANSMITTANCE')
self.assertEqual(jcamp_dict['cas registry no'], '74-82-8')
self.assertEqual(jcamp_dict['spectrometer/data system'], 'DOW KBr FOREPRISM')
self.assertEqual(jcamp_dict['$nist image'], 'cob8873')
self.assertEqual(jcamp_dict['path length'], '5 CM')
self.assertEqual(jcamp_dict['data processing'], 'DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS)')
self.assertEqual(jcamp_dict['date'], 1964)
self.assertEqual(jcamp_dict['molform'], 'C H4')
self.assertEqual(jcamp_dict['instrument parameters'], 'GRATING CHANGED AT 5.0, 7.5, 15.0 MICRON')
self.assertEqual(jcamp_dict['class'], 'COBLENTZ')
self.assertEqual(jcamp_dict['xfactor'], 1.0)
self.assertEqual(jcamp_dict['partial_pressure'], '150 mmHg')
self.assertEqual(jcamp_dict['minx'], 449.47)
self.assertEqual(jcamp_dict['xunits'], '1/CM')
self.assertEqual(jcamp_dict['source reference'], 'COBLENTZ NO. 8873')
self.assertEqual(jcamp_dict['miny'], 0.028)
self.assertEqual(jcamp_dict['jcamp-dx'], 4.24)
self.assertEqual(jcamp_dict['xydata'], '(X++(Y..Y))')
self.assertEqual(jcamp_dict['yfactor'], 1)
self.assertEqual(jcamp_dict['resolution'], 4)
self.assertEqual(jcamp_dict['$nist source'], 'COBLENTZ')
def test_jcamp_calc_xsec(self):
filename = './data/infrared_spectra/methane.jdx'
jcamp_dict = jcamp_readfile(filename)
jcamp_calc_xsec(jcamp_dict)
self.assertTrue('xsec' in jcamp_dict)
if __name__ == '__main__':
#testobj = TestJcamp()
unittest.main()
#testobj.test_read_mass()