# Copyright 2021 TerraPower, LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
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"""MacroXSGenerationInterface tests."""
import unittest
from collections import defaultdict
from armi.nuclearDataIO import isotxs
from armi.nuclearDataIO.xsCollections import XSCollection
from armi.physics.neutronics.macroXSGenerationInterface import (
MacroXSGenerationInterface,
)
from armi.reactor.tests.test_reactors import loadTestReactor, reduceTestReactorRings
from armi.settings import Settings
from armi.tests import ISOAA_PATH
[docs]class TestMacroXSGenerationInterface(unittest.TestCase):
[docs] def test_macroXSGenerationInterfaceBasics(self):
"""Test the macroscopic XS generating interfaces.
.. test:: Build macroscopic cross sections for all blocks in the reactor.
:id: T_ARMI_MACRO_XS
:tests: R_ARMI_MACRO_XS
"""
cs = Settings()
_o, r = loadTestReactor()
reduceTestReactorRings(r, cs, 2)
# Before: verify there are no macro XS on each block
for b in r.core.getBlocks():
self.assertIsNone(b.macros)
# create the macro XS interface
i = MacroXSGenerationInterface(r, cs)
self.assertEqual(i.minimumNuclideDensity, 1e-15)
self.assertEqual(i.name, "macroXsGen")
# Mock up a nuclide library
mockLib = isotxs.readBinary(ISOAA_PATH)
mockLib.__dict__["_nuclides"] = defaultdict(
lambda: mockLib.__dict__["_nuclides"]["CAA"], mockLib.__dict__["_nuclides"]
)
# This is the meat of it: build the macro XS
self.assertIsNone(i.macrosLastBuiltAt)
i.buildMacros(mockLib, buildScatterMatrix=False)
self.assertEqual(i.macrosLastBuiltAt, 0)
# After: verify there are macro XS on each block
for b in r.core.getBlocks():
self.assertIsNotNone(b.macros)
self.assertTrue(isinstance(b.macros, XSCollection))