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# Copyright (C) 2014 Science and Technology Facilities Council.
# Copyright (C) 2017-2024 East Asian Observatory.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from __future__ import unicode_literals
from io import BytesIO
from unittest import TestCase
from pymoc import MOC
from pymoc.io.json import read_moc_json, write_moc_json
class JSONTestCase(TestCase):
def test_json(self):
test_json = b'{"1":[1,2,4],"2":[12,13,14,21,23,25]}'
in_ = BytesIO(test_json)
moc = MOC()
read_moc_json(moc, file=in_)
self.assertEqual(moc.order, 2)
self.assertEqual(moc[0], frozenset())
self.assertEqual(moc[1], frozenset([1, 2, 4]))
self.assertEqual(moc[2], frozenset([12, 13, 14, 21, 23, 25]))
out = BytesIO()
write_moc_json(moc, file=out)
self.assertEqual(out.getvalue(), test_json)
def test_json_trailing(self):
# Check MOC 1.1 addition of trailing section to
# signify the MOCORDER.
in_ = BytesIO(b'{"13":[5,6,7],"14":[]}')
moc = MOC()
read_moc_json(moc, file=in_)
self.assertEqual(moc[13], frozenset([5, 6, 7]))
self.assertEqual(moc[14], frozenset())
def test_json_large(self):
orig = MOC()
orig.add(29, [
3458700000000000000, 3458700000000000007,
3458700000000000008, 3458700000000000009,
])
out = BytesIO()
write_moc_json(orig, file=out)
json = out.getvalue()
self.assertEqual(
json, b'{"29":[3458700000000000000,3458700000000000007,'
b'3458700000000000008,3458700000000000009]}')
copy = MOC()
in_ = BytesIO(json)
read_moc_json(copy, file=in_)
self.assertEqual(copy.order, 29)
self.assertEqual(copy.cells, 4)
self.assertEqual(copy[29], frozenset([
3458700000000000000, 3458700000000000007,
3458700000000000008, 3458700000000000009]))
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