Coverage for tests/test_makeRawVisitInfoViaObsInfo.py: 37%

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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 <http://www.gnu.org/licenses/>. 

21 

22import unittest 

23 

24import astropy.units as u 

25import lsst.afw.image 

26from astro_metadata_translator import FitsTranslator, ObservationInfo, StubTranslator 

27from astropy.time import Time 

28from lsst.daf.base import DateTime 

29from lsst.obs.base import MakeRawVisitInfoViaObsInfo 

30 

31 

32class NewTranslator(FitsTranslator, StubTranslator): 

33 _trivial_map = { 

34 "exposure_time": "EXPTIME", 

35 "exposure_id": "EXP-ID", 

36 } 

37 

38 def to_location(self): 

39 return None 

40 

41 def to_detector_exposure_id(self): 

42 return self.to_exposure_id() 

43 

44 

45class MakeTestableVisitInfo(MakeRawVisitInfoViaObsInfo): 

46 metadataTranslator = NewTranslator 

47 

48 

49class TestMakeRawVisitInfoViaObsInfo(unittest.TestCase): 

50 def setUp(self): 

51 # Reference values 

52 self.exposure_time = 6.2 * u.s 

53 self.exposure_id = 54321 

54 self.datetime_begin = Time("2001-01-02T03:04:05.123456789", format="isot", scale="utc") 

55 self.datetime_begin.precision = 9 

56 self.datetime_end = Time("2001-01-02T03:04:07.123456789", format="isot", scale="utc") 

57 self.datetime_end.precision = 9 

58 

59 self.header = { 

60 "DATE-OBS": self.datetime_begin.isot, 

61 "DATE-END": self.datetime_end.isot, 

62 "INSTRUME": "SomeCamera", 

63 "TELESCOP": "LSST", 

64 "TIMESYS": "UTC", 

65 "EXPTIME": self.exposure_time, 

66 "EXP-ID": self.exposure_id, 

67 "EXTRA1": "an abitrary key and value", 

68 "EXTRA2": 5, 

69 } 

70 

71 def testMakeRawVisitInfoViaObsInfo(self): 

72 maker = MakeTestableVisitInfo() 

73 beforeLength = len(self.header) 

74 

75 # Capture the warnings from StubTranslator since they are 

76 # confusing to people but irrelevant for the test. 

77 with self.assertWarns(UserWarning): 

78 with self.assertLogs(level="WARNING"): 

79 visitInfo = maker(self.header) 

80 

81 self.assertAlmostEqual(visitInfo.getExposureTime(), self.exposure_time.to_value("s")) 

82 with self.assertWarns(FutureWarning): 

83 # TODO: tested for backward-compatibility; remove on DM-32138 

84 self.assertEqual(visitInfo.getExposureId(), self.exposure_id) 

85 self.assertEqual(visitInfo.id, self.exposure_id) 

86 self.assertEqual(visitInfo.getDate(), DateTime("2001-01-02T03:04:06.123456789Z", DateTime.UTC)) 

87 # The header can possibly grow with header fix up provenance. 

88 self.assertGreaterEqual(len(self.header), beforeLength) 

89 self.assertEqual(visitInfo.getInstrumentLabel(), "SomeCamera") 

90 

91 def testObservationInfo2VisitInfo(self): 

92 

93 with self.assertWarns(UserWarning): 

94 obsInfo = ObservationInfo(self.header, translator_class=NewTranslator) 

95 

96 # No log specified so no log message should appear 

97 visitInfo = MakeRawVisitInfoViaObsInfo.observationInfo2visitInfo(obsInfo) 

98 self.assertIsInstance(visitInfo, lsst.afw.image.VisitInfo) 

99 self.assertAlmostEqual(visitInfo.getExposureTime(), self.exposure_time.to_value("s")) 

100 with self.assertWarns(FutureWarning): 

101 # TODO: tested for backward-compatibility; remove on DM-32138 

102 self.assertEqual(visitInfo.getExposureId(), self.exposure_id) 

103 self.assertEqual(visitInfo.id, self.exposure_id) 

104 self.assertEqual(visitInfo.getDate(), DateTime("2001-01-02T03:04:06.123456789Z", DateTime.UTC)) 

105 self.assertEqual(visitInfo.getInstrumentLabel(), "SomeCamera") 

106 

107 

108if __name__ == "__main__": 108 ↛ 109line 108 didn't jump to line 109, because the condition on line 108 was never true

109 unittest.main()