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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', lambdaEff=456)) 

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

35 FilterDefinition(physical_filter='def', lambdaEff=654)) 

36 FilterDefinitionCollection.reset() 

37 

38 def test_singleton(self): 

39 self.filters1.defineFilters() 

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

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

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

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

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

45 with self.assertRaises(RuntimeError): 

46 self.filters2.defineFilters() 

47 # the defined filters should be unchanged 

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

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

50 

51 def test_reset(self): 

52 self.filters1.defineFilters() 

53 with self.assertRaises(RuntimeError): 

54 self.filters2.defineFilters() 

55 self.filters1.reset() 

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

57 self.filters2.defineFilters() 

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

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

60 

61 def test_findAll(self): 

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

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

64 self.assertEqual(len(matches), 1) 

65 match = list(matches)[0] 

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

67 

68 

69class TestFilterDefinition(lsst.utils.tests.TestCase): 

70 def setUp(self): 

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

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

73 physical_filter="HSC-G", 

74 lambdaEff=1234, 

75 alias={'ABCDEFG'}) 

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

77 physical_filter="HSC-G2", 

78 afw_name='g2', 

79 lambdaEff=1235, 

80 alias={'HIJK'}) 

81 

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

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

84 lambdaEff=5, afw_name="afw only") 

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

86 band="abstract only") 

87 

88 def testDefineFilters(self): 

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

90 # the filter should not exist until we define it 

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

92 lsst.afw.image.Filter('g') 

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

94 lsst.afw.image.Filter('g2') 

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

96 lsst.afw.image.Filter('HSC-G') 

97 

98 self.filter_g.defineFilter() 

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

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

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

102 # afw Filter stores the aliased name as the CannonicalName 

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

104 self.assertEqual(filter, filter_alias) 

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

106 

107 self.filter_g2.defineFilter() 

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

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

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

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

112 self.assertEqual(filter2, filter2_alias) 

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

114 

115 def test_physical_only(self): 

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

117 """ 

118 self.physical_only.defineFilter() 

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

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

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

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

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

124 

125 def test_afw_name(self): 

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

127 """ 

128 self.afw_name.defineFilter() 

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

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

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

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

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

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

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

136 

137 def test_abstract_only(self): 

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

139 """ 

140 self.abstract.defineFilter() 

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

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

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

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

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

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

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

148 

149 

150class MemoryTester(lsst.utils.tests.MemoryTestCase): 

151 pass 

152 

153 

154def setup_module(module): 

155 lsst.utils.tests.init() 

156 

157 

158if __name__ == '__main__': 158 ↛ 159line 158 didn't jump to line 159, because the condition on line 158 was never true

159 lsst.utils.tests.init() 

160 unittest.main()