Coverage for tests/test_Chunker.py: 25%
40 statements
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« prev ^ index » next coverage.py v7.5.0, created at 2024-05-02 03:12 -0700
1# This file is part of sphgeom.
2#
3# Developed for the LSST Data Management System.
4# This product includes software developed by the LSST Project
5# (http://www.lsst.org).
6# See the COPYRIGHT file at the top-level directory of this distribution
7# for details of code ownership.
8#
9# This software is dual licensed under the GNU General Public License and also
10# under a 3-clause BSD license. Recipients may choose which of these licenses
11# to use; please see the files gpl-3.0.txt and/or bsd_license.txt,
12# respectively. If you choose the GPL option then the following text applies
13# (but note that there is still no warranty even if you opt for BSD instead):
14#
15# This program is free software: you can redistribute it and/or modify
16# it under the terms of the GNU General Public License as published by
17# the Free Software Foundation, either version 3 of the License, or
18# (at your option) any later version.
19#
20# This program is distributed in the hope that it will be useful,
21# but WITHOUT ANY WARRANTY; without even the implied warranty of
22# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23# GNU General Public License for more details.
24#
25# You should have received a copy of the GNU General Public License
26# along with this program. If not, see <http://www.gnu.org/licenses/>.
28import pickle
29import unittest
31from lsst.sphgeom import Box, Chunker
34class ChunkerTestCase(unittest.TestCase):
35 """Test Chunker."""
37 def testConstruction(self):
38 chunker = Chunker(85, 12)
39 self.assertEqual(chunker.numStripes, 85)
40 self.assertEqual(chunker.numSubStripesPerStripe, 12)
42 def testComparisonOperators(self):
43 c = Chunker(85, 12)
44 self.assertEqual(c, c)
45 self.assertEqual(c, Chunker(85, 12))
46 self.assertNotEqual(c, Chunker(85, 10))
48 def testIntersecting(self):
49 b = Box.fromDegrees(273.6, 30.7, 273.7180105379097, 30.722546655347717)
50 c = Chunker(85, 12)
51 self.assertEqual(c.getChunksIntersecting(b), [9630, 9631, 9797])
52 self.assertEqual(c.getSubChunksIntersecting(b), [(9630, [770]), (9631, [759]), (9797, [11])])
54 def testString(self):
55 chunker = Chunker(85, 12)
56 self.assertEqual(str(chunker), "Chunker(85, 12)")
57 self.assertEqual(repr(chunker), "Chunker(85, 12)")
58 self.assertEqual(chunker, eval(repr(chunker), {"Chunker": Chunker}))
60 def testPickle(self):
61 a = Chunker(85, 12)
62 b = pickle.loads(pickle.dumps(a))
63 self.assertEqual(a, b)
65 def testChunkBoundingBox(self):
66 chunker = Chunker(200, 5)
67 chunk_id = 3645
68 stripe = chunker.getStripe(chunk_id)
69 chunk_in_stripe = chunker.getChunk(chunk_id, stripe)
70 bbox = chunker.getChunkBoundingBox(stripe, chunk_in_stripe)
71 sbbox = chunker.getSubChunkBoundingBox(0, 0)
72 self.assertEqual(stripe, 9)
73 self.assertEqual(chunk_in_stripe, 45)
74 b = Box.fromRadians(5.048988193233824, -1.4294246573883558, 5.1611879309330035, -1.413716694110407)
75 self.assertAlmostEqual(bbox, b)
76 sb = Box.fromRadians(0.0, -1.5707963267948966, 6.283185307179586, -1.5676547341363067)
77 self.assertAlmostEqual(sbbox, sb)
80if __name__ == "__main__":
81 unittest.main()