Coverage for tests/test_forcedPhot.py: 37%
52 statements
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« prev ^ index » next coverage.py v7.4.4, created at 2024-04-04 03:06 -0700
1# This file is part of meas_base.
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/>.
22"""Tests of the various forced photometry tasks.
24These tests primarily confirm that their respective Tasks can be configured and
25run without errors, but do not check anything about their algorithmic quality.
26"""
28import unittest
30import numpy as np
32import lsst.afw.image
33from lsst.afw.math import ChebyshevBoundedField
34from lsst.meas.base import ForcedPhotCcdTask, ForcedPhotCcdFromDataFrameTask
35import lsst.meas.base.tests
36import lsst.utils.tests
38skyCenter = lsst.geom.SpherePoint(245.0, -45.0, lsst.geom.degrees)
41class ForcedPhotometryTests:
42 """Base class for tests of forced photometry tasks.
44 Creates a simple test image and catalog to run forced photometry on.
45 """
46 def setUp(self):
47 bbox = lsst.geom.Box2I(lsst.geom.Point2I(0, 0), lsst.geom.Point2I(100, 100))
48 dataset = lsst.meas.base.tests.TestDataset(bbox, crval=skyCenter)
49 dataset.addSource(instFlux=1000, centroid=lsst.geom.Point2D(30, 30))
50 dataset.addSource(instFlux=10000, centroid=lsst.geom.Point2D(60, 70))
52 schema = dataset.makeMinimalSchema()
53 self.exposure, self.refCat = dataset.realize(noise=10, schema=schema)
54 # Simple aperture correction map in case the task needs it.
55 apCorrMap = lsst.afw.image.ApCorrMap()
56 apCorrMap["base_PsfFlux_instFlux"] = ChebyshevBoundedField(bbox, np.array([[2.0]]))
57 apCorrMap["base_PsfFlux_instFluxErr"] = ChebyshevBoundedField(bbox, np.array([[3.0]]))
58 self.exposure.info.setApCorrMap(apCorrMap)
59 self.exposure.mask.addMaskPlane("STREAK") # add empty streak mask plane in lieu of maskStreaksTask
61 # Offset WCS so that the forced coordinates don't match the truth.
62 self.offsetWcs = dataset.makePerturbedWcs(self.exposure.wcs)
65class ForcedPhotCcdTaskTestCase(ForcedPhotometryTests, lsst.utils.tests.TestCase):
66 def testRun(self):
67 config = ForcedPhotCcdTask.ConfigClass()
68 task = ForcedPhotCcdTask(refSchema=self.refCat.schema, config=config)
69 measCat = task.measurement.generateMeasCat(self.exposure, self.refCat, self.exposure.wcs)
71 task.run(measCat, self.exposure, self.refCat, self.offsetWcs)
73 # Check that something was measured.
74 self.assertTrue(np.isfinite(measCat["base_TransformedCentroid_x"]).all())
75 self.assertTrue(np.isfinite(measCat["base_TransformedCentroid_y"]).all())
76 self.assertTrue(np.isfinite(measCat["base_PsfFlux_instFlux"]).all())
77 # We use an offset WCS, so the transformed centroids should not exactly
78 # match the original positions.
79 self.assertFloatsNotEqual(measCat["base_TransformedCentroid_x"], self.refCat['truth_x'])
80 self.assertFloatsNotEqual(measCat["base_TransformedCentroid_y"], self.refCat['truth_y'])
83class ForcedPhotCcdFromDataFrameTaskTestCase(ForcedPhotometryTests, lsst.utils.tests.TestCase):
84 def testRun(self):
85 """Testing run() for this task ignores the dataframe->SourceCatalog
86 conversion that happens in runQuantum, but that should be tested
87 separately.
88 """
89 config = ForcedPhotCcdFromDataFrameTask.ConfigClass()
90 task = ForcedPhotCcdFromDataFrameTask(refSchema=self.refCat.schema, config=config)
91 measCat = task.measurement.generateMeasCat(self.exposure, self.refCat, self.exposure.wcs)
93 task.run(measCat, self.exposure, self.refCat, self.offsetWcs)
95 # Check that something was measured.
96 self.assertTrue(np.isfinite(measCat["base_TransformedCentroidFromCoord_x"]).all())
97 self.assertTrue(np.isfinite(measCat["base_TransformedCentroidFromCoord_y"]).all())
98 self.assertTrue(np.isfinite(measCat["base_PsfFlux_instFlux"]).all())
99 # We use an offset WCS, so the transformed centroids should not exactly
100 # match the original positions.
101 self.assertFloatsNotEqual(measCat["base_TransformedCentroidFromCoord_x"], self.refCat['truth_x'])
102 self.assertFloatsNotEqual(measCat["base_TransformedCentroidFromCoord_y"], self.refCat['truth_y'])
105class MemoryTester(lsst.utils.tests.MemoryTestCase):
106 pass
109def setup_module(module):
110 lsst.utils.tests.init()
113if __name__ == "__main__": 113 ↛ 114line 113 didn't jump to line 114, because the condition on line 113 was never true
114 lsst.utils.tests.init()
115 unittest.main()