Coverage for tests/test_subaru.py: 100%
42 statements
« prev ^ index » next coverage.py v7.16.2, created at 2026-10-14 18:12 +0000
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.
12import os.path
13import unittest
15import astropy.time
16import astropy.units as u
18from astro_metadata_translator import merge_headers
19from astro_metadata_translator.tests import MetadataAssertHelper, read_test_file
20from astro_metadata_translator.translators import HscTranslator
22TESTDIR = os.path.abspath(os.path.dirname(__file__))
25class HscTestCase(unittest.TestCase, MetadataAssertHelper):
26 """Test HSC translations."""
28 datadir = os.path.join(TESTDIR, "data")
30 def test_hsc_translator(self) -> None:
31 test_data = (
32 (
33 "fitsheader-hsc.yaml",
34 dict(
35 telescope="Subaru",
36 instrument="HSC",
37 boresight_rotation_coord="sky",
38 dark_time=30.0 * u.s,
39 detector_exposure_id=180804850,
40 detector_name="12",
41 detector_unique_name="1_12",
42 detector_num=50,
43 detector_serial="120",
44 exposure_id=904024,
45 exposure_group="904024",
46 exposure_time=30.0 * u.s,
47 exposure_time_requested=30.0 * u.s,
48 focus_z=3.7 * u.mm,
49 group_counter_end=904024,
50 group_counter_start=904024,
51 has_simulated_content=False,
52 object="STRIPE82L",
53 observation_counter=904024,
54 observation_id="HSCA90402400",
55 observation_type="science",
56 observation_reason="science",
57 observing_day=20131102,
58 observing_day_offset=astropy.time.TimeDelta(0, format="sec", scale="tai"),
59 physical_filter="HSC-I",
60 pressure=621.7 * u.hPa,
61 relative_humidity=33.1,
62 science_program="o13015",
63 temperature=272.35 * u.K,
64 visit_id=904024,
65 ),
66 ),
67 (
68 "fitsheader-hsc-HSCA04090107.yaml",
69 dict(
70 telescope="Subaru",
71 instrument="HSC",
72 boresight_rotation_coord="sky",
73 dark_time=150.0 * u.s,
74 detector_exposure_id=8180037,
75 detector_name="07",
76 detector_unique_name="1_07",
77 detector_num=37,
78 detector_serial="061",
79 exposure_id=40900,
80 exposure_group="40900",
81 exposure_time=150.0 * u.s,
82 exposure_time_requested=150.0 * u.s,
83 focus_z=3.83 * u.mm,
84 group_counter_end=40900,
85 group_counter_start=40900,
86 has_simulated_content=False,
87 object="SSP-Wide",
88 observation_counter=40900,
89 observation_id="HSCA04090000",
90 observation_type="science",
91 observation_reason="science",
92 observing_day=20151010,
93 physical_filter="HSC-R",
94 pressure=625.4 * u.hPa,
95 relative_humidity=8.6,
96 science_program="o15426",
97 temperature=278.35 * u.K,
98 visit_id=40900,
99 ),
100 ),
101 )
102 for file, expected in test_data:
103 with self.subTest(f"Testing {file}"):
104 self.assertObservationInfoFromYaml(file, dir=self.datadir, **expected)
106 def test_suprimecam_translator(self) -> None:
107 # In this case the airmass is average during observation
108 # but it looks like ALTITUDE is from a different time so loosen amdelta
109 test_data = (
110 (
111 "fitsheader-suprimecam-CORR40535770.yaml",
112 dict(
113 telescope="Subaru",
114 instrument="SuprimeCam",
115 boresight_rotation_coord="unknown",
116 dark_time=200.0 * u.s,
117 detector_exposure_id=535770,
118 detector_name="nausicaa",
119 detector_unique_name="nausicaa",
120 detector_num=0,
121 detector_serial="w67c1",
122 exposure_id=53577,
123 exposure_group="53577",
124 exposure_time=200.0 * u.s,
125 exposure_time_requested=200.0 * u.s,
126 group_counter_end=53577,
127 group_counter_start=53577,
128 has_simulated_content=False,
129 object="Ecliptic Deep Field",
130 observation_counter=53577,
131 observation_id="SUPE00535770",
132 observation_type="science",
133 observation_reason="science",
134 observing_day=20070423,
135 physical_filter="W-S-R+",
136 pressure=621.5 * u.hPa,
137 relative_humidity=4.9,
138 science_program="o07222",
139 temperature=273.15 * u.K,
140 visit_id=53577,
141 wcs_params=dict(amdelta=0.015),
142 ),
143 ),
144 )
145 for file, expected in test_data:
146 with self.subTest(f"Testing {file}"):
147 self.assertObservationInfoFromYaml(file, dir=self.datadir, **expected)
149 def test_merging_hsc(self) -> None:
150 files = ("fitsheader-hsc-HSCA04090107.yaml", "fitsheader-hsc.yaml")
151 headers = [read_test_file(f, dir=self.datadir) for f in files]
152 merged = merge_headers(headers, mode="first", sort=False)
154 # The MJD-STR should come from the first file
155 self.assertAlmostEqual(merged["MJD-STR"], 57305.34729859)
157 # If we sort then MJD-STR should come from the oldest file
158 merged = merge_headers(headers, mode="first", sort=True)
159 self.assertAlmostEqual(merged["MJD-STR"], 56598.26106374757)
161 # Drop headers that differ, MJD-STR should not appear
162 merged = merge_headers(headers, mode="drop", sort=True)
163 self.assertNotIn("MJD-STR", merged)
165 # Drop but retain first MJD-STR without sorting
166 merged = merge_headers(headers, mode="drop", sort=False, first=["MJD-STR", "UT-STR"])
167 self.assertAlmostEqual(merged["MJD-STR"], 57305.34729859)
168 self.assertEqual(merged["UT-STR"], "08:20:06.598")
170 # Drop but retain first MJD-STR
171 merged = merge_headers(headers, mode="drop", sort=True, first=["MJD-STR", "UT-STR"])
172 self.assertAlmostEqual(merged["MJD-STR"], 56598.26106374757)
173 self.assertEqual(merged["UT-STR"], "06:15:55.908")
175 def test_hsc_datetime_begin_failure_repeats(self) -> None:
176 """Test that successive failures in to_datetime_begin() don't get
177 hidden because caching is used on both a base translator and a derived
178 one.
179 """
180 # A header with no usable date must raise on every call to a
181 # translator that falls back on the decorated parent method,
182 # not just the first one.
183 header = read_test_file("fitsheader-hsc.yaml", dir=self.datadir)
184 del header["DATE-OBS"]
185 translator = HscTranslator(header)
186 for _ in range(3):
187 with self.assertRaises(KeyError):
188 translator.to_datetime_begin()
191if __name__ == "__main__":
192 unittest.main()