Added test for MG tallying

tests/test_mg_tallies/inputs_true.dat

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+87d5adff4c8d53f020baa25db59d9ad6eada791ef010577e3586c543a9ee6cee6022d99e7a27911a94560acddba3602570c0748a0b4cba48f630b726221f14dc

tests/test_mg_tallies/test_mg_tallies.py

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+#!/usr/bin/env python
+
+import os
+import sys
+sys.path.insert(0, os.pardir)
+from testing_harness import TestHarness, PyAPITestHarness
+import openmc
+
+
+class MGTalliesTestHarness(PyAPITestHarness):
+    def _build_inputs(self):
+        # Instantiate a tally mesh
+        mesh = openmc.Mesh(mesh_id=1)
+        mesh.type = 'regular'
+        mesh.dimension = [17, 17, 1]
+        mesh.lower_left = [0.0, 0.0, 0.0]
+        mesh.upper_right = [21.42, 21.42, 100.0]
+
+        # Instantiate some tally filters
+        energy_filter = openmc.Filter(type='energy',
+                                      bins=[1E-11, 0.0635E-6, 10.0E-6, 1.0E-4,
+                                            1.0E-3, 0.5, 1.0, 20.0])
+        energyout_filter = openmc.Filter(type='energyout',
+                                         bins=[1E-11, 0.0635E-6, 10.0E-6,
+                                               1.0E-4, 1.0E-3, 0.5, 1.0, 20.0])
+        mesh_filter = openmc.Filter()
+        mesh_filter.mesh = mesh
+
+        mat_filter = openmc.Filter(type='material', bins=[1,2,3])
+
+        tally1 = openmc.Tally(tally_id=1)
+        tally1.add_filter(mesh_filter)
+        tally1.add_score('total')
+        tally1.add_score('absorption')
+        tally1.add_score('flux')
+        tally1.add_score('fission')
+        tally1.add_score('nu-fission')
+
+        tally2 = openmc.Tally(tally_id=2)
+        tally2.add_filter(mat_filter)
+        tally2.add_filter(energy_filter)
+        tally2.add_filter(energyout_filter)
+        tally2.add_score('scatter')
+        tally2.add_score('nu-scatter')
+
+        self._input_set.tallies = openmc.TalliesFile()
+        self._input_set.tallies.add_mesh(mesh)
+        self._input_set.tallies.add_tally(tally1)
+        self._input_set.tallies.add_tally(tally2)
+
+        super(MGTalliesTestHarness, self)._build_inputs()
+
+    def _cleanup(self):
+        super(MGTalliesTestHarness, self)._cleanup()
+        f = os.path.join(os.getcwd(), 'tallies.xml')
+        if os.path.exists(f): os.remove(f)
+
+
+if __name__ == '__main__':
+    harness = MGTalliesTestHarness('statepoint.10.*', True, mg=True)
+    harness.main()