Coverage for tests / test_ssoAssociationTask.py: 22%

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/>. 

21 

22import numpy as np 

23from astropy.table import Table 

24import astropy.table as tb 

25import unittest 

26 

27from lsst.pipe.tasks.ssoAssociation import SolarSystemAssociationTask 

28import astshim as ast 

29import lsst.geom as geom 

30import lsst.afw.geom as afwGeom 

31import lsst.meas.base.tests as measTests 

32import lsst.utils.tests 

33 

34 

35class TestSolarSystemAssociation(unittest.TestCase): 

36 

37 def setUp(self): 

38 # Make fake sources 

39 self.nSources = 10 

40 self.bbox = geom.Box2I(geom.Point2I(0, 0), 

41 geom.Extent2I(1024, 1153)) 

42 self.xyLoc = 100 

43 dataset = measTests.TestDataset(self.bbox) 

44 for srcIdx in range(self.nSources): 

45 dataset.addSource(100000.0, 

46 geom.Point2D(srcIdx*self.xyLoc, 

47 srcIdx*self.xyLoc)) 

48 schema = dataset.makeMinimalSchema() 

49 schema.addField("base_PixelFlags_flag", type="Flag") 

50 schema.addField("base_PixelFlags_flag_offimage", type="Flag") 

51 self.exposure, catalog = dataset.realize( 

52 10.0, schema, randomSeed=1234) 

53 for src in catalog: 

54 src.setCoord(self.exposure.getWcs().pixelToSky(src.getCentroid())) 

55 # Non-invertible WCS to test robustness to distortions. 

56 # Coefficients transform (x - 1e-7*x^3 -> x, y -> y); see docs for PolyMap. 

57 pixelCoeffs = np.array([[-1.0e-7, 1, 3, 0], 

58 [1.0, 1, 1, 0], 

59 [1.0, 2, 0, 1], 

60 ]) 

61 self.exposure.setWcs(afwGeom.makeModifiedWcs( 

62 afwGeom.TransformPoint2ToPoint2(ast.PolyMap(pixelCoeffs, 2, options="IterInverse=1")), 

63 self.exposure.wcs, 

64 modifyActualPixels=False 

65 )) 

66 

67 # Convert to task required format 

68 self.testDiaSources = catalog.asAstropy() 

69 self.testDiaSources.rename_columns(["coord_ra", "coord_dec"], ["ra", "dec"]) 

70 self.testDiaSources["ra"] = np.rad2deg(self.testDiaSources["ra"]) 

71 self.testDiaSources["dec"] = np.rad2deg(self.testDiaSources["dec"]) 

72 self.testDiaSources["midpointMjdTai"] = self.testDiaSources["ra"]*0 + 65000.0 

73 self.testDiaSources["extendedness"] = np.zeros(len(self.testDiaSources)) 

74 self.testDiaSources["band"] = np.full(len(self.testDiaSources), 'r', dtype='U1') 

75 self.testDiaSources["psfFlux"] = np.ones(len(self.testDiaSources)) * 3. 

76 self.testDiaSources["psfFluxErr"] = np.ones(len(self.testDiaSources)) * 0.1 

77 self.testDiaSources = tb.vstack([self.testDiaSources, Table([[45], [45]], names=["ra", "dec"])]) 

78 self.testDiaSources["ssObjectId"] = 0 

79 self.testDiaSources["diaSourceId"] = [i for i in range(len(self.testDiaSources))] 

80 

81 # Grab a subset to treat as solar system objects 

82 self.testSsObjects = Table() 

83 self.testSsObjects["ObjID"] = ["test_ob"] 

84 self.testSsObjects["ssObjectId"] = [1234] 

85 self.testSsObjects["ephRa"] = [45] 

86 self.testSsObjects["ephDec"] = [45] 

87 self.testSsObjects["tmin"] = [-1] 

88 self.testSsObjects["tmax"] = [1] 

89 self.testSsObjects["obs_x_poly"] = [np.array([0])] 

90 self.testSsObjects["obs_y_poly"] = [np.array([0])] 

91 self.testSsObjects["obs_z_poly"] = [np.array([0])] 

92 self.testSsObjects["obj_x_poly"] = [np.array([1])] 

93 self.testSsObjects["obj_y_poly"] = [np.array([1])] 

94 self.testSsObjects["obj_z_poly"] = [np.array([2 ** 0.5])] 

95 self.testSsObjects["Err(arcsec)"] = np.ones(len(self.testSsObjects)) 

96 self.testSsObjects["trailedSourceMagTrue"] = 22 

97 

98 def test_run(self): 

99 """Test that association and id assignment work as expected. 

100 """ 

101 ssAssocTask = SolarSystemAssociationTask() 

102 results = ssAssocTask.run(self.testDiaSources, 

103 self.testSsObjects, 

104 self.exposure.visitInfo, 

105 self.exposure.getBBox(), 

106 self.exposure.wcs) 

107 self.assertEqual(len(results.ssoAssocDiaSources), 1) 

108 self.assertEqual(results.ssoAssocDiaSources['ra'][0], 45.0) 

109 self.assertEqual(results.ssoAssocDiaSources['dec'][0], 45.0) 

110 self.assertEqual(results.ssoAssocDiaSources['ssObjectId'][0], 1234) 

111 

112 def test_mask(self): 

113 """Test that masking against the CCD bounding box works as expected. 

114 """ 

115 ssAssocTask = SolarSystemAssociationTask() 

116 # Test will all inside ccd 

117 maskedObjects = ssAssocTask._maskToCcdRegion(self.testSsObjects, 

118 self.exposure.getBBox(), 

119 self.exposure.wcs, 

120 1.0) 

121 self.assertEqual(len(maskedObjects), len(self.testSsObjects)) 

122 

123 # Add a new SolarSystemObjects outside of the bbox and test that it 

124 # is excluded. 

125 testObjects = tb.vstack([self.testSsObjects[:1] for i in range(3)]) 

126 testObjects[0]["ephRa"] = 150 

127 testObjects[0]["ephDec"] = 80 

128 testObjects[1]["ephRa"] = 150 

129 testObjects[1]["ephDec"] = -80 

130 # Coordinates are chosen so that the inverse WCS erroneously maps them 

131 # to inside the box (to (74.5, 600.6) instead of around (1745, 600.6)). 

132 testObjects[2]["ephRa"] = 44.91215199831453 

133 testObjects[2]["ephDec"] = 45.001331943391406 

134 maskedObjects = ssAssocTask._maskToCcdRegion( 

135 tb.vstack([self.testSsObjects, testObjects]), 

136 self.exposure.getBBox(), 

137 self.exposure.wcs, 

138 1.0) 

139 self.assertEqual(len(maskedObjects), len(self.testSsObjects)) 

140 

141 

142class MemoryTester(lsst.utils.tests.MemoryTestCase): 

143 pass 

144 

145 

146def setup_module(module): 

147 lsst.utils.tests.init() 

148 

149 

150if __name__ == "__main__": 150 ↛ 151line 150 didn't jump to line 151 because the condition on line 150 was never true

151 lsst.utils.tests.init() 

152 unittest.main()