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1# This file is part of obs_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 lsst.utils.tests 

25import lsst.afw.image 

26from lsst.obs.base import FilterDefinition, FilterDefinitionCollection 

27import lsst.pex.exceptions 

28 

29 

30class TestFilterDefinitionCollection(lsst.utils.tests.TestCase): 

31 def setUp(self): 

32 self.filters1 = FilterDefinitionCollection(FilterDefinition(physical_filter='abc', lambdaEff=123), 

33 FilterDefinition(physical_filter='def', 

34 band='d', 

35 lambdaEff=456)) 

36 self.filters2 = FilterDefinitionCollection(FilterDefinition(physical_filter='abc', lambdaEff=321), 

37 FilterDefinition(physical_filter='def', 

38 band='dd', 

39 lambdaEff=654)) 

40 FilterDefinitionCollection.reset() 

41 

42 def test_singleton(self): 

43 self.filters1.defineFilters() 

44 self.assertEqual(lsst.afw.image.Filter('abc').getFilterProperty().getLambdaEff(), 123) 

45 self.assertEqual(lsst.afw.image.Filter('def').getFilterProperty().getLambdaEff(), 456) 

46 self.filters1.defineFilters() # this should not change anything 

47 self.assertEqual(lsst.afw.image.Filter('abc').getFilterProperty().getLambdaEff(), 123) 

48 self.assertEqual(lsst.afw.image.Filter('def').getFilterProperty().getLambdaEff(), 456) 

49 with self.assertRaises(RuntimeError): 

50 self.filters2.defineFilters() 

51 # the defined filters should be unchanged 

52 self.assertEqual(lsst.afw.image.Filter('abc').getFilterProperty().getLambdaEff(), 123) 

53 self.assertEqual(lsst.afw.image.Filter('def').getFilterProperty().getLambdaEff(), 456) 

54 

55 def test_reset(self): 

56 self.filters1.defineFilters() 

57 with self.assertRaises(RuntimeError): 

58 self.filters2.defineFilters() 

59 self.filters1.reset() 

60 # The new filters can be defiend and should replace the old ones. 

61 self.filters2.defineFilters() 

62 self.assertEqual(lsst.afw.image.Filter('abc').getFilterProperty().getLambdaEff(), 321) 

63 self.assertEqual(lsst.afw.image.Filter('def').getFilterProperty().getLambdaEff(), 654) 

64 

65 def test_findAll(self): 

66 self.assertEqual(set(self.filters1.findAll('r')), set()) 

67 matches = self.filters1.findAll('abc') 

68 self.assertEqual(len(matches), 1) 

69 match = list(matches)[0] 

70 self.assertEqual(match.physical_filter, 'abc') 

71 

72 def test_physical_to_band(self): 

73 """Test that the physical_to_band dict returns expected values. 

74 """ 

75 self.assertIsNone(self.filters1.physical_to_band['abc']) 

76 self.assertEqual(self.filters1.physical_to_band['def'], 'd') 

77 self.assertIsNone(self.filters2.physical_to_band['abc']) 

78 self.assertEqual(self.filters2.physical_to_band['def'], 'dd') 

79 

80 

81class TestFilterDefinition(lsst.utils.tests.TestCase): 

82 def setUp(self): 

83 lsst.afw.image.utils.resetFilters() 

84 self.filter_g = FilterDefinition(band="g", 

85 physical_filter="HSC-G", 

86 lambdaEff=1234, 

87 alias={'ABCDEFG'}) 

88 self.filter_g2 = FilterDefinition(band="g", 

89 physical_filter="HSC-G2", 

90 afw_name='g2', 

91 lambdaEff=1235, 

92 alias={'HIJK'}) 

93 

94 self.physical_only = FilterDefinition(physical_filter="physical", lambdaEff=0) 

95 self.afw_name = FilterDefinition(physical_filter="afw_name", 

96 lambdaEff=5, afw_name="afw only") 

97 self.abstract = FilterDefinition(physical_filter="abstract", lambdaEff=42, 

98 band="abstract only") 

99 

100 def testDefineFilters(self): 

101 """Test that a filter is properly defined in afw.""" 

102 # the filter should not exist until we define it 

103 with self.assertRaises(lsst.pex.exceptions.NotFoundError): 

104 lsst.afw.image.Filter('g') 

105 with self.assertRaises(lsst.pex.exceptions.NotFoundError): 

106 lsst.afw.image.Filter('g2') 

107 with self.assertRaises(lsst.pex.exceptions.NotFoundError): 

108 lsst.afw.image.Filter('HSC-G') 

109 

110 self.filter_g.defineFilter() 

111 filter = lsst.afw.image.Filter('g') 

112 filter_alias = lsst.afw.image.Filter('HSC-G') 

113 self.assertEqual(filter.getName(), 'g') 

114 # afw Filter stores the aliased name as the CannonicalName 

115 self.assertEqual(filter_alias.getCanonicalName(), 'g') 

116 self.assertEqual(filter, filter_alias) 

117 self.assertEqual(['ABCDEFG', 'HSC-G'], sorted(filter.getAliases())) 

118 

119 self.filter_g2.defineFilter() 

120 filter2 = lsst.afw.image.Filter('g2') 

121 filter2_alias = lsst.afw.image.Filter('HSC-G2') 

122 self.assertEqual(filter2.getName(), 'g2') 

123 self.assertEqual(filter2_alias.getCanonicalName(), 'g2') 

124 self.assertEqual(filter2, filter2_alias) 

125 self.assertEqual(['HIJK', 'HSC-G2', 'g'], sorted(filter2.getAliases())) 

126 

127 def test_physical_only(self): 

128 """physical_filter is the only name this filter has. 

129 """ 

130 self.physical_only.defineFilter() 

131 filter = lsst.afw.image.Filter('physical') 

132 self.assertEqual(filter.getName(), 'physical') 

133 self.assertEqual([], sorted(filter.getAliases())) 

134 self.assertEqual(self.physical_only.makeFilterLabel(), 

135 lsst.afw.image.FilterLabel(physical='physical')) 

136 

137 def test_afw_name(self): 

138 """afw_name is the Filter name, physical_filter is an alias. 

139 """ 

140 self.afw_name.defineFilter() 

141 filter = lsst.afw.image.Filter('afw only') 

142 filter_alias = lsst.afw.image.Filter('afw_name') 

143 self.assertEqual(filter.getName(), 'afw only') 

144 self.assertEqual(filter_alias.getCanonicalName(), 'afw only') 

145 self.assertEqual(['afw_name'], sorted(filter.getAliases())) 

146 self.assertEqual(self.afw_name.makeFilterLabel(), 

147 lsst.afw.image.FilterLabel(physical='afw_name')) 

148 

149 def test_abstract_only(self): 

150 """band is the Filter name, physical_filter is an alias. 

151 """ 

152 self.abstract.defineFilter() 

153 filter = lsst.afw.image.Filter('abstract only') 

154 filter_alias = lsst.afw.image.Filter('abstract') 

155 self.assertEqual(filter.getName(), 'abstract only') 

156 self.assertEqual(filter_alias.getCanonicalName(), 'abstract only') 

157 self.assertEqual(['abstract'], sorted(filter.getAliases())) 

158 self.assertEqual(self.abstract.makeFilterLabel(), 

159 lsst.afw.image.FilterLabel(band='abstract only', physical='abstract')) 

160 

161 

162class MemoryTester(lsst.utils.tests.MemoryTestCase): 

163 pass 

164 

165 

166def setup_module(module): 

167 lsst.utils.tests.init() 

168 

169 

170if __name__ == '__main__': 170 ↛ 171line 170 didn't jump to line 171, because the condition on line 170 was never true

171 lsst.utils.tests.init() 

172 unittest.main()