Added new test in test suite to check for <nuclides>all</nuclides> with void

material.

tests/test_tally_nuclides/geometry.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+<geometry>
+
+  <surface id="1"  type="sphere" coeffs="0. 0. 0. 1.4" />
+  <surface id="2"  type="sphere" coeffs="0. 0. 0. 5.35" boundary="vacuum" />
+
+  <cell id="1"  material="void" surfaces="-1" />      <!-- cavity -->
+  <cell id="2"  material="1"    surfaces=" 1  -2" />  <!-- Pu Core -->
+
+</geometry>

tests/test_tally_nuclides/materials.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0"?>
+<materials>
+
+  <default_xs>71c</default_xs>
+
+  <!-- Plutonium -->
+  <material id="1">
+    <density value="18.4757" units="g/cm3" />
+    <nuclide name="Pu-239" ao="1.0" />
+  </material>
+
+
+</materials>

tests/test_tally_nuclides/results.py

@@ -0,0 +1,37 @@
+#!/usr/bin/env python
+
+import sys
+import numpy as np
+
+# import statepoint
+sys.path.append('../../src/utils')
+import statepoint
+
+# read in statepoint file
+if len(sys.argv) > 1:
+    sp = statepoint.StatePoint(sys.argv[1])
+else:
+    sp = statepoint.StatePoint('statepoint.10.binary')
+sp.read_results()
+
+# extract tally results and convert to vector
+results = sp.tallies[0].results
+shape = results.shape
+size = (np.product(shape))
+results = np.reshape(results, size)
+
+# set up output string
+outstr = ''
+ 
+# write out k-combined
+outstr += 'k-combined:\n'
+outstr += "{0:12.6E} {1:12.6E}\n".format(sp.k_combined[0], sp.k_combined[1])
+
+# write out tally results
+outstr += 'tallies:\n'
+for item in results:
+  outstr += "{0:12.6E}\n".format(item)
+
+# write results to file
+with open('results_test.dat','w') as fh:
+    fh.write(outstr)

tests/test_tally_nuclides/results_true.dat

@@ -0,0 +1,19 @@
+k-combined:
+9.914201E-01 3.310472E-02
+tallies:
+7.251620E+00
+1.056750E+01
+1.649542E+00
+5.462124E-01
+1.598276E+00
+5.127366E-01
+5.602079E+00
+6.310407E+00
+7.251620E+00
+1.056750E+01
+1.649542E+00
+5.462124E-01
+1.598276E+00
+5.127366E-01
+5.602079E+00
+6.310407E+00

tests/test_tally_nuclides/settings.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+<settings>
+
+  <eigenvalue>
+    <batches>10</batches>
+    <inactive>5</inactive>
+    <particles>100</particles>
+  </eigenvalue>
+
+  <source>
+    <space>
+      <type>point</type>
+      <parameters>0.0 0.0 0.0</parameters>
+    </space>
+  </source>
+
+</settings>

tests/test_tally_nuclides/tallies.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0"?>
+<tallies>
+
+  <tally id="1">
+    <nuclides>all</nuclides>
+    <scores>total absorption fission scatter</scores>
+  </tally>
+
+</tallies>

tests/test_tally_nuclides/test_tally_nuclides.py

@@ -0,0 +1,57 @@
+#!/usr/bin/env python
+
+import os
+from subprocess import Popen, STDOUT, PIPE, call
+import filecmp
+import glob
+from optparse import OptionParser
+
+parser = OptionParser()
+parser.add_option('--mpi_exec', dest='mpi_exec', default='')
+parser.add_option('--mpi_np', dest='mpi_np', default='3')
+parser.add_option('--exe', dest='exe')
+(opts, args) = parser.parse_args()
+cwd = os.getcwd()
+
+def test_run():
+    if opts.mpi_exec != '':
+        proc = Popen([opts.mpi_exec, '-np', opts.mpi_np, opts.exe, cwd],
+               stderr=STDOUT, stdout=PIPE)
+    else:
+        proc = Popen([opts.exe, cwd], stderr=STDOUT, stdout=PIPE)
+    print(proc.communicate()[0])
+    returncode = proc.returncode
+    assert returncode == 0, 'OpenMC did not exit successfully.'
+
+def test_created_statepoint():
+    statepoint = glob.glob(os.path.join(cwd, 'statepoint.10.*'))
+    assert len(statepoint) == 1, 'Either multiple or no statepoint files exist.'
+    assert statepoint[0].endswith('binary') or statepoint[0].endswith('h5'),\
+        'Statepoint file is not a binary or hdf5 file.'
+
+def test_results():
+    statepoint = glob.glob(os.path.join(cwd, 'statepoint.10.*'))
+    call(['python', 'results.py', statepoint[0]])
+    compare = filecmp.cmp('results_test.dat', 'results_true.dat')
+    if not compare:
+      os.rename('results_test.dat', 'results_error.dat')
+    assert compare, 'Results do not agree.'
+
+def teardown():
+    output = glob.glob(os.path.join(cwd, 'statepoint.10.*'))
+    output.append(os.path.join(cwd, 'results_test.dat'))
+    for f in output:
+        if os.path.exists(f):
+            os.remove(f)
+
+if __name__ == '__main__':
+
+    # test for openmc executable
+    if opts.exe is None:
+        raise Exception('Must specify OpenMC executable from command line with --exe.')
+
+    # run tests
+    test_run()
+    test_created_statepoint()
+    test_results()
+    teardown()