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1# This file is part of astro_metadata_translator. 

2# 

3# Developed for the LSST Data Management System. 

4# This product includes software developed by the LSST Project 

5# (http://www.lsst.org). 

6# See the LICENSE file at the top-level directory of this distribution 

7# for details of code ownership. 

8# 

9# Use of this source code is governed by a 3-clause BSD-style 

10# license that can be found in the LICENSE file. 

11 

12import unittest 

13import os.path 

14 

15from astro_metadata_translator.tests import read_test_file 

16from astro_metadata_translator import ObservationGroup 

17from astro_metadata_translator.serialize import group_to_fits, info_to_fits 

18 

19TESTDIR = os.path.abspath(os.path.dirname(__file__)) 

20 

21 

22class ObservationGroupTestCase(unittest.TestCase): 

23 datadir = os.path.join(TESTDIR, "data") 

24 

25 def setUp(self): 

26 self.decam_files = ("fitsheader-decam.yaml", 

27 "fitsheader-decam-0160496.yaml", 

28 "fitsheader-decam-calexp-0412037_10.yaml") 

29 self.hsc_files = ("fitsheader-hsc-HSCA04090107.yaml", 

30 "fitsheader-hsc.yaml") 

31 

32 def _files_to_headers(self, files): 

33 return [read_test_file(os.path.join(self.datadir, f)) for f in files] 

34 

35 def test_groups(self): 

36 headers = self._files_to_headers(self.decam_files) 

37 

38 obs_group = ObservationGroup(headers) 

39 self.assertEqual(len(obs_group), 3) 

40 

41 sorted_group = ObservationGroup(sorted(obs_group)) 

42 self.assertIsInstance(sorted_group, ObservationGroup) 

43 self.assertEqual(len(sorted_group), 3) 

44 self.assertEqual(sorted_group[0], obs_group[1]) 

45 

46 self.assertNotEqual(obs_group, sorted_group) 

47 obs_group.sort() 

48 self.assertEqual(obs_group, sorted_group) 

49 obs_group.reverse() 

50 self.assertEqual(obs_group[0], sorted_group[-1]) 

51 

52 newest = obs_group.newest() 

53 oldest = obs_group.oldest() 

54 self.assertEqual(newest, sorted_group[-1]) 

55 self.assertEqual(oldest, sorted_group[0]) 

56 

57 self.assertLess(oldest, newest) 

58 self.assertGreater(newest, oldest) 

59 

60 self.assertNotEqual(oldest, obs_group) 

61 

62 # Add some headers and check that sorting still works 

63 obs_group.extend(self._files_to_headers(self.hsc_files)) 

64 self.assertEqual(len(obs_group), 5) 

65 self.assertEqual(obs_group.newest(), obs_group[3]) 

66 

67 instruments = obs_group.property_values("instrument") 

68 self.assertEqual(instruments, {"HSC", "DECam"}) 

69 

70 def test_fits_group(self): 

71 headers = self._files_to_headers(self.decam_files) 

72 

73 obs_group = ObservationGroup(headers) 

74 cards, comments = group_to_fits(obs_group) 

75 

76 expected = {'INSTRUME': 'DECam', 

77 'TIMESYS': 'TAI', 

78 'DATE-OBS': '2012-12-11T22:07:07.859', 

79 'MJD-OBS': 56272.92161874134, 

80 'DATE-END': '2015-02-20T00:50:11.000', 

81 'MJD-END': 57073.034849537034, 

82 'DATE-AVG': '2014-01-15T23:28:39.430', 

83 'MJD-AVG': 56672.97823413919} 

84 self.assertEqual(cards, expected) 

85 

86 def test_fits_info(self): 

87 header = self._files_to_headers(self.decam_files)[0] 

88 obs_group = ObservationGroup([header]) 

89 cards, comments = info_to_fits(obs_group[0]) 

90 

91 expected = {'INSTRUME': 'DECam', 

92 'TIMESYS': 'TAI', 

93 'MJD-AVG': 56536.25417681625, 

94 'MJD-END': 56536.25591435185, 

95 'MJD-OBS': 56536.25243928065, 

96 'DATE-OBS': '2013-09-01T06:03:30.754', 

97 'DATE-AVG': '2013-09-01T06:06:00.877', 

98 'DATE-END': '2013-09-01T06:08:31.000'} 

99 self.assertEqual(cards, expected) 

100 

101 

102if __name__ == "__main__": 102 ↛ 103line 102 didn't jump to line 103, because the condition on line 102 was never true

103 unittest.main()