Hide keyboard shortcuts

Hot-keys on this page

r m x p   toggle line displays

j k   next/prev highlighted chunk

0   (zero) top of page

1   (one) first highlighted chunk

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 

24from astropy.time import Time 

25import astropy.units as u 

26 

27import lsst.log 

28from astro_metadata_translator import FitsTranslator, StubTranslator, ObservationInfo 

29from lsst.daf.base import DateTime 

30 

31from lsst.obs.base import MakeRawVisitInfoViaObsInfo 

32 

33 

34class NewTranslator(FitsTranslator, StubTranslator): 

35 _trivial_map = { 

36 "exposure_time": "EXPTIME", 

37 "exposure_id": "EXP-ID", 

38 } 

39 

40 def to_location(self): 

41 return None 

42 

43 def to_detector_exposure_id(self): 

44 return self.to_exposure_id() 

45 

46 

47class MakeTestableVisitInfo(MakeRawVisitInfoViaObsInfo): 

48 metadataTranslator = NewTranslator 

49 

50 

51class TestMakeRawVisitInfoViaObsInfo(unittest.TestCase): 

52 

53 def setUp(self): 

54 # Reference values 

55 self.exposure_time = 6.2*u.s 

56 self.exposure_id = 54321 

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

58 self.datetime_begin.precision = 9 

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

60 self.datetime_end.precision = 9 

61 

62 self.header = { 

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

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

65 "INSTRUME": "Irrelevant", 

66 "TELESCOP": "LSST", 

67 "TIMESYS": "UTC", 

68 "EXPTIME": self.exposure_time, 

69 "EXP-ID": self.exposure_id, 

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

71 "EXTRA2": 5, 

72 } 

73 

74 def testMakeRawVisitInfoViaObsInfo(self): 

75 maker = MakeTestableVisitInfo() 

76 beforeLength = len(self.header) 

77 

78 # Capture the warnings from StubTranslator since they are 

79 # confusing to people but irrelevant for the test. 

80 with self.assertWarns(UserWarning): 

81 with lsst.log.UsePythonLogging(): 

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

83 visitInfo = maker(self.header) 

84 

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

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

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

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

89 

90 def testObservationInfo2VisitInfo(self): 

91 

92 with self.assertWarns(UserWarning): 

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

94 

95 # No log specified so no log message should appear 

96 visitInfo = MakeRawVisitInfoViaObsInfo.observationInfo2visitInfo(obsInfo) 

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

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

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

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

101 

102 

103if __name__ == "__main__": 103 ↛ 104line 103 didn't jump to line 104, because the condition on line 103 was never true

104 unittest.main()