clm5/python/ctsm/test/test_unit_mesh_maker.py
2024-05-09 15:14:01 +08:00

114 lines
2.9 KiB
Python

#!/usr/bin/env python3
"""
Unit tests for mesh_maker
You can run this by:
python -m unittest test_unit_mesh_maker.py
"""
import unittest
import os
import sys
# -- add python/ctsm to path (needed if we want to run the test stand-alone)
_CTSM_PYTHON = os.path.join(os.path.dirname(os.path.realpath(__file__)), os.pardir, os.pardir)
sys.path.insert(1, _CTSM_PYTHON)
# pylint: disable=wrong-import-position
from ctsm import unit_testing
from ctsm.mesh_maker import get_parser, process_and_check_args, main
# pylint: disable=invalid-name
class TestMeshMaker(unittest.TestCase):
"""
Basic class for testing mesh_maker.py.
"""
def test_input_file_dne(self):
"""
Test that exits if input file does not exist
"""
sys.argv = [
"mesh_maker",
"--input",
"zztop.nc",
"--lat",
"lsmlat",
"--lon",
"lsmlon",
"--outdir",
".",
]
with self.assertRaisesRegex(SystemExit, "Input file not found."):
main()
def test_outfile_and_outdir(self):
"""
Test that exits if both outfile and outdir are provided
"""
infile = "ctsm/test/testinputs/default_data.cfg"
sys.argv = [
"mesh_maker",
"--input",
infile,
"--lat",
"lsmlat",
"--lon",
"lsmlon",
"--outdir",
".",
"--output",
"outthing.nc",
]
with self.assertRaisesRegex(SystemExit, "You have provided both --outdir and --output."):
main()
def test_outfile_exists_and_no_overwrite(self):
"""
Test that exits if outfile already exists and overwrite was not used
"""
infile = "ctsm/test/testinputs/default_data.cfg"
sys.argv = [
"mesh_maker",
"--input",
infile,
"--lat",
"lsmlat",
"--lon",
"lsmlon",
"--output",
infile,
]
with self.assertRaisesRegex(
SystemExit,
"output meshfile exists, please choose --overwrite to overwrite the mesh file.",
):
main()
def test_default_outfile_as_expected(self):
"""
Test that the default outfile is as expected
"""
infile = "ctsm/test/testinputs/default_data.cfg"
sys.argv = [
"mesh_maker",
"--input",
infile,
"--lat",
"lsmlat",
"--lon",
"lsmlon",
]
parser = get_parser()
args = parser.parse_args()
args = process_and_check_args(args)
expected_outdir = os.path.join(os.getcwd(), "meshes")
self.assertEqual(args.out_dir, expected_outdir, "Default out_dir is not as expected")
if __name__ == "__main__":
unit_testing.setup_for_tests()
unittest.main()