Coverage for tests/test_groups.py: 25%

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 os.path 

13import unittest 

14 

15from astro_metadata_translator import ObservationGroup 

16from astro_metadata_translator.serialize import group_to_fits, info_to_fits 

17from astro_metadata_translator.tests import read_test_file 

18 

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

20 

21 

22class ObservationGroupTestCase(unittest.TestCase): 

23 """Test grouping of observations.""" 

24 

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

26 

27 def setUp(self): 

28 self.decam_files = ( 

29 "fitsheader-decam.yaml", 

30 "fitsheader-decam-0160496.yaml", 

31 "fitsheader-decam-calexp-0412037_10.yaml", 

32 ) 

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

34 

35 def _files_to_headers(self, files): 

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

37 

38 def test_groups(self): 

39 headers = self._files_to_headers(self.decam_files) 

40 

41 obs_group = ObservationGroup(headers) 

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

43 self.assertEqual( 

44 str(obs_group), 

45 "[(DECam, 2013-09-01T06:02:55.754), (DECam, 2012-12-11T22:06:32.859)," 

46 " (DECam, 2015-02-20T00:47:21.127)]", 

47 ) 

48 

49 sorted_group = ObservationGroup(sorted(obs_group)) 

50 self.assertIsInstance(sorted_group, ObservationGroup) 

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

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

53 

54 self.assertNotEqual(obs_group, sorted_group) 

55 obs_group.sort() 

56 self.assertEqual(obs_group, sorted_group) 

57 obs_group.reverse() 

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

59 

60 newest = obs_group.newest() 

61 oldest = obs_group.oldest() 

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

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

64 

65 self.assertLess(oldest, newest) 

66 self.assertGreater(newest, oldest) 

67 

68 self.assertNotEqual(oldest, obs_group) 

69 self.assertNotEqual(obs_group, oldest) 

70 

71 # Add some headers and check that sorting still works 

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

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

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

75 

76 instruments = obs_group.property_values("instrument") 

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

78 

79 # Check that simplified form round trips 

80 self.assertEqual(ObservationGroup.from_simple(obs_group.to_simple()), obs_group) 

81 

82 def test_fits_group(self): 

83 headers = self._files_to_headers(self.decam_files) 

84 

85 obs_group = ObservationGroup(headers) 

86 cards, comments = group_to_fits(obs_group) 

87 

88 expected = { 

89 "INSTRUME": "DECam", 

90 "TIMESYS": "TAI", 

91 "DATE-OBS": "2012-12-11T22:07:07.859", 

92 "MJD-OBS": 56272.92161874134, 

93 "DATE-BEG": "2012-12-11T22:07:07.859", 

94 "MJD-BEG": 56272.92161874134, 

95 "DATE-END": "2015-02-20T00:50:11.000", 

96 "MJD-END": 57073.034849537034, 

97 "DATE-AVG": "2014-01-15T23:28:39.430", 

98 "MJD-AVG": 56672.97823413919, 

99 } 

100 self.assertEqual(cards, expected) 

101 

102 def test_fits_info(self): 

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

104 obs_group = ObservationGroup([header]) 

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

106 

107 expected = { 

108 "INSTRUME": "DECam", 

109 "TIMESYS": "TAI", 

110 "MJD-AVG": 56536.25417681625, 

111 "MJD-END": 56536.25591435185, 

112 "MJD-OBS": 56536.25243928065, 

113 "MJD-BEG": 56536.25243928065, 

114 "DATE-OBS": "2013-09-01T06:03:30.754", 

115 "DATE-BEG": "2013-09-01T06:03:30.754", 

116 "DATE-AVG": "2013-09-01T06:06:00.877", 

117 "DATE-END": "2013-09-01T06:08:31.000", 

118 } 

119 self.assertEqual(cards, expected) 

120 

121 

122if __name__ == "__main__": 122 ↛ 123line 122 didn't jump to line 123, because the condition on line 122 was never true

123 unittest.main()