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Docs: clarify use of environment variables in tests

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Paul Romano 2022-11-29 17:31:29 -06:00
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8
docs/source/devguide/tests.rst
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@ -31,9 +31,13 @@ Prerequisites
- The test suite requires a specific set of cross section data in order for
tests to pass. A download URL for the data that OpenMC expects can be found
within ``tools/ci/download-xs.sh``.
within ``tools/ci/download-xs.sh``. Once the tarball is downloaded and
unpacked, set the :envvar:`OPENMC_CROSS_SECTIONS` environment variable to the
path of the ``cross_sections.xml`` file within the unpacked data.
- In addition to the HDF5 data, some tests rely on ENDF files. A download URL
for those can also be found in ``tools/ci/download-xs.sh``.
for those can also be found in ``tools/ci/download-xs.sh``. Once the tarball
is downloaded and unpacked, set the :envvar:`OPENMC_ENDF_DATA` environment
variable to the top-level directory of the unpacked tarball.
- Some tests require `NJOY <https://www.njoy21.io/NJOY2016>`_ to preprocess
cross section data. The test suite assumes that you have an ``njoy``
executable available on your :envvar:`PATH`.