Coverage for tests/test_PixelFlags.py: 18%

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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/>. 

21 

22import unittest 

23 

24import numpy as np 

25 

26import lsst.geom 

27import lsst.utils.tests 

28import lsst.meas.base.tests 

29 

30 

31class PixelFlagsTestCase(lsst.meas.base.tests.AlgorithmTestCase, lsst.utils.tests.TestCase): 

32 

33 def setUp(self): 

34 self.center = lsst.geom.Point2D(50.1, 49.8) 

35 self.bbox = lsst.geom.Box2I(lsst.geom.Point2I(-20, -30), 

36 lsst.geom.Extent2I(140, 160)) 

37 self.dataset = lsst.meas.base.tests.TestDataset(self.bbox) 

38 self.dataset.addSource(100000.0, self.center) 

39 

40 def testNoFlags(self): 

41 task = self.makeSingleFrameMeasurementTask("base_PixelFlags") 

42 exposure, catalog = self.dataset.realize(10.0, task.schema, randomSeed=0) 

43 task.run(catalog, exposure) 

44 record = catalog[0] 

45 self.assertFalse(record.get("base_PixelFlags_flag")) 

46 self.assertFalse(record.get("base_PixelFlags_flag_edge")) 

47 self.assertFalse(record.get("base_PixelFlags_flag_interpolated")) 

48 self.assertFalse(record.get("base_PixelFlags_flag_interpolatedCenter")) 

49 self.assertFalse(record.get("base_PixelFlags_flag_interpolatedCenterAll")) 

50 self.assertFalse(record.get("base_PixelFlags_flag_saturated")) 

51 self.assertFalse(record.get("base_PixelFlags_flag_saturatedCenter")) 

52 self.assertFalse(record.get("base_PixelFlags_flag_saturatedCenterAll")) 

53 self.assertFalse(record.get("base_PixelFlags_flag_cr")) 

54 self.assertFalse(record.get("base_PixelFlags_flag_crCenter")) 

55 self.assertFalse(record.get("base_PixelFlags_flag_crCenterAll")) 

56 self.assertFalse(record.get("base_PixelFlags_flag_bad")) 

57 self.assertFalse(record.get("base_PixelFlags_flag_badCenter")) 

58 self.assertFalse(record.get("base_PixelFlags_flag_badCenterAll")) 

59 

60 def testSomeFlags(self): 

61 task = self.makeSingleFrameMeasurementTask("base_PixelFlags") 

62 exposure, catalog = self.dataset.realize(10.0, task.schema, randomSeed=0) 

63 # one cr pixel outside the center 

64 cosmicray = exposure.mask.getPlaneBitMask("CR") 

65 x = round(self.center.x) 

66 y = round(self.center.y) 

67 exposure.mask[x+3, y+4] |= cosmicray 

68 # one interpolated pixel near the center 

69 interpolated = exposure.mask.getPlaneBitMask("INTRP") 

70 exposure.mask[self.center] |= interpolated 

71 # all pixels in the center are bad 

72 bad = exposure.mask.getPlaneBitMask("BAD") 

73 exposure.mask[x-1:x+2, y-1:y+2] |= bad 

74 task.run(catalog, exposure) 

75 record = catalog[0] 

76 

77 self.assertTrue(record.get("base_PixelFlags_flag_cr")) 

78 self.assertFalse(record.get("base_PixelFlags_flag_crCenter")) 

79 self.assertFalse(record.get("base_PixelFlags_flag_crCenterAll")) 

80 self.assertTrue(record.get("base_PixelFlags_flag_interpolated")) 

81 self.assertTrue(record.get("base_PixelFlags_flag_interpolatedCenter")) 

82 self.assertFalse(record.get("base_PixelFlags_flag_interpolatedCenterAll")) 

83 self.assertTrue(record.get("base_PixelFlags_flag_bad")) 

84 self.assertTrue(record.get("base_PixelFlags_flag_badCenter")) 

85 self.assertTrue(record.get("base_PixelFlags_flag_badCenterAll")) 

86 

87 def testOffimageNonfinite(self): 

88 """Test that flag_offimage and flag_edge are set correctly for 

89 nonfinite sources. 

90 """ 

91 # These three will be explicitly set to have a non-finite centroid; we 

92 # cannot add sources off the image in TestDataset. 

93 self.dataset.addSource(100000, lsst.geom.Point2D(20, 20)) 

94 self.dataset.addSource(100000, lsst.geom.Point2D(20, 100)) 

95 self.dataset.addSource(100000, lsst.geom.Point2D(100, 30)) 

96 task = self.makeSingleFrameMeasurementTask("base_PixelFlags") 

97 exposure, catalog = self.dataset.realize(10.0, task.schema, randomSeed=0) 

98 catalog[1]["slot_Centroid_x"] = np.inf 

99 catalog[2]["slot_Centroid_x"] = -np.inf 

100 catalog[3]["slot_Centroid_y"] = np.nan 

101 task.run(catalog, exposure) 

102 np.testing.assert_array_equal(catalog["base_PixelFlags_flag_offimage"], 

103 np.array([False, True, True, True])) 

104 np.testing.assert_array_equal(catalog["base_PixelFlags_flag_edge"], 

105 np.array([False, True, True, True])) 

106 

107 def testOffimage(self): 

108 """Test that sources at the boundary of the image get flag_offimage 

109 and flag_edge set appropriately. 

110 """ 

111 # These four will be explicitly set to values at the boundary; we 

112 # cannot add sources off the image in TestDataset. 

113 self.dataset.addSource(100000, lsst.geom.Point2D(20, 20)) 

114 self.dataset.addSource(100000, lsst.geom.Point2D(20, 100)) 

115 self.dataset.addSource(100000, lsst.geom.Point2D(80, 100)) 

116 self.dataset.addSource(100000, lsst.geom.Point2D(80, 30)) 

117 task = self.makeSingleFrameMeasurementTask("base_PixelFlags") 

118 exposure, catalog = self.dataset.realize(10.0, task.schema, randomSeed=0) 

119 catalog[1]["slot_Centroid_x"] = -20.5 # on image 

120 catalog[2]["slot_Centroid_x"] = -20.51 # off image 

121 catalog[3]["slot_Centroid_y"] = 129.4 # on image 

122 catalog[4]["slot_Centroid_y"] = 129.50 # off image 

123 task.run(catalog, exposure) 

124 np.testing.assert_array_equal(catalog["base_PixelFlags_flag_offimage"], 

125 np.array([False, False, True, False, True])) 

126 np.testing.assert_array_equal(catalog["base_PixelFlags_flag_edge"], 

127 np.array([False, False, True, False, True])) 

128 

129 

130class TestMemory(lsst.utils.tests.MemoryTestCase): 

131 pass 

132 

133 

134def setup_module(module): 

135 lsst.utils.tests.init() 

136 

137 

138if __name__ == "__main__": 138 ↛ 139line 138 didn't jump to line 139, because the condition on line 138 was never true

139 lsst.utils.tests.init() 

140 unittest.main()