Coverage for tests/test_trailedSourceFilter.py: 32%
46 statements
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« prev ^ index » next coverage.py v7.3.2, created at 2023-10-11 11:00 +0000
1# This file is part of ap_association.
2#
3# Developed for the LSST Data Management System.
4# This product includes software developed by the LSST Project
5# (https://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 program is free software: you can redistribute it and/or modify
10# it under the terms of the GNU General Public License as published by
11# the Free Software Foundation, either version 3 of the License, or
12# (at your option) any later version.
13#
14# This program is distributed in the hope that it will be useful,
15# but WITHOUT ANY WARRANTY; without even the implied warranty of
16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17# GNU General Public License for more details.
18#
19# You should have received a copy of the GNU General Public License
20# along with this program. If not, see <https://www.gnu.org/licenses/>.
22import unittest
23from lsst.ap.association import TrailedSourceFilterTask
24import numpy as np
25import pandas as pd
26import lsst.utils.tests
29class TestTrailedSourceFilterTask(unittest.TestCase):
31 def setUp(self):
32 """Create sets of diaSources.
34 The trail lengths of the dia sources are 0, 5.5, 11, 16.5, 21.5
35 arcseconds.
36 """
37 rng = np.random.default_rng(1234)
38 scatter = 0.1 / 3600
39 self.nSources = 5
40 self.diaSources = pd.DataFrame(data=[
41 {"ra": 0.04*idx + scatter*rng.uniform(-1, 1),
42 "dec": 0.04*idx + scatter*rng.uniform(-1, 1),
43 "diaSourceId": idx, "diaObjectId": 0, "trailLength": 5.5*idx}
44 for idx in range(self.nSources)])
45 self.exposure_time = 30.0
47 def test_run(self):
48 """Run trailedSourceFilterTask with the default max distance.
50 With the default settings and an exposure of 30 seconds, the max trail
51 length is 12.5 arcseconds. Two out of five of the diaSources will be
52 filtered out of the final results and put into results.trailedSources.
53 """
54 trailedSourceFilterTask = TrailedSourceFilterTask()
55 results = trailedSourceFilterTask.run(self.diaSources, self.exposure_time)
57 self.assertEqual(len(results.diaSources), 3)
58 np.testing.assert_array_equal(results.diaSources['diaSourceId'].values, [0, 1, 2])
59 np.testing.assert_array_equal(results.trailedDiaSources['diaSourceId'].values, [3, 4])
61 def test_run_short_max_trail(self):
62 """Run trailedSourceFilterTask with aggressive trail length cutoff
64 With a max_trail_length config of 0.01 arcseconds/second and an
65 exposure of 30 seconds,the max trail length is 0.3 arcseconds. Only the
66 source with a trail of 0 stays in the catalog and the rest are filtered
67 out and put into results.trailedSources.
68 """
69 config = TrailedSourceFilterTask.ConfigClass()
70 config.max_trail_length = 0.01
71 trailedSourceFilterTask = TrailedSourceFilterTask(config=config)
72 results = trailedSourceFilterTask.run(self.diaSources, self.exposure_time)
74 self.assertEqual(len(results.diaSources), 1)
75 np.testing.assert_array_equal(results.diaSources['diaSourceId'].values, [0])
76 np.testing.assert_array_equal(results.trailedDiaSources['diaSourceId'].values, [1, 2, 3, 4])
78 def test_run_no_trails(self):
79 """Run trailedSourceFilterTask with a long trail length so that
80 every source in the catalog is in the final diaSource catalog.
82 With a max_trail_length config of 10 arcseconds/second and an
83 exposure of 30 seconds,the max trail length is 300 arcseconds. All
84 sources in the initial catalog should be in the final diaSource
85 catalog.
86 """
87 config = TrailedSourceFilterTask.ConfigClass()
88 config.max_trail_length = 10.00
89 trailedSourceFilterTask = TrailedSourceFilterTask(config=config)
90 results = trailedSourceFilterTask.run(self.diaSources, self.exposure_time)
92 self.assertEqual(len(results.diaSources), 5)
93 self.assertEqual(len(results.trailedDiaSources), 0)
94 np.testing.assert_array_equal(results.diaSources["diaSourceId"].values, [0, 1, 2, 3, 4])
95 np.testing.assert_array_equal(results.trailedDiaSources["diaSourceId"].values, [])
97 def test_check_dia_source_trail(self):
98 """Test the source trail mask filter.
100 Test that the mask filter returns the expected mask array.
101 """
102 trailedSourceFilterTask = TrailedSourceFilterTask()
103 mask = trailedSourceFilterTask._check_dia_source_trail(self.diaSources, self.exposure_time)
104 np.testing.assert_array_equal(mask, [False, False, False, True, True])
107class MemoryTester(lsst.utils.tests.MemoryTestCase):
108 pass
111def setup_module(module):
112 lsst.utils.tests.init()
115if __name__ == "__main__": 115 ↛ 116line 115 didn't jump to line 116, because the condition on line 115 was never true
116 lsst.utils.tests.init()
117 unittest.main()