Coverage for tests/test_diff_matched_tract_catalog.py: 24%
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1# This file is part of pipe_tasks.
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 <https://www.gnu.org/licenses/>.
23import unittest
24import lsst.utils.tests
26import lsst.afw.geom as afwGeom
27from lsst.meas.astrom import ConvertCatalogCoordinatesConfig
28from lsst.pipe.tasks.diff_matched_tract_catalog import (
29 DiffMatchedTractCatalogConfig, DiffMatchedTractCatalogTask, MatchedCatalogFluxesConfig,
30)
32import numpy as np
33import os
34import pandas as pd
37def _error_format(column):
38 return f'{column}Err'
41class DiffMatchedTractCatalogTaskTestCase(lsst.utils.tests.TestCase):
42 """DiffMatchedTractCatalogTask test case."""
43 def setUp(self):
44 ra = np.array([-5.1, -2.2, 0., 3.1, -3.2])
45 dec = np.array([-4.15, 1.15, 0, 2.15, -7.15])
46 mag_g = np.array([23., 24., 25., 25.5, 26.])
47 mag_r = mag_g + [0.5, -0.2, -0.8, -0.5, -1.5]
49 coord_format = ConvertCatalogCoordinatesConfig
50 zeropoint = coord_format.mag_zeropoint_ref.default
51 fluxes = tuple(10**(-0.4*(mag - zeropoint)) for mag in (mag_g, mag_r))
52 # Percent error in measurement
53 err_flux = np.array((0.02, 0.015, -0.035, 0.02, -0.04))
54 # Absolute error
55 eps_coord = np.array((2.3, 0.6, -1.7, 3.6, -2.4))
56 err_coord = np.full_like(eps_coord, 0.02)
57 eps_coord *= err_coord
58 extended_ref = [True, False, True, False, True]
59 extended_target = [False, False, True, True, True]
60 flags = np.ones_like(eps_coord, dtype=bool)
62 bands = ['g', 'r']
64 columns_flux = [f'flux_{band}' for band in bands]
65 columns_flux_err = [_error_format(column) for column in columns_flux]
67 column_ra_ref = coord_format.column_ref_coord1.default
68 column_dec_ref = coord_format.column_ref_coord2.default
69 column_ra_target = coord_format.column_target_coord1.default
70 column_dec_target = coord_format.column_target_coord2.default
72 column_ra_target_err, column_dec_target_err = [
73 _error_format(col) for col in (column_ra_target, column_dec_target)
74 ]
76 data_ref = {
77 column_ra_ref: ra[::-1],
78 column_dec_ref: dec[::-1],
79 columns_flux[0]: fluxes[0][::-1],
80 columns_flux[1]: fluxes[1][::-1],
81 DiffMatchedTractCatalogConfig.column_ref_extended.default: extended_ref,
82 }
83 self.catalog_ref = pd.DataFrame(data=data_ref)
85 data_target = {
86 column_ra_target: ra + eps_coord,
87 column_dec_target: dec + eps_coord,
88 column_ra_target_err: err_coord,
89 column_dec_target_err: err_coord,
90 columns_flux[0]: fluxes[0]*(1 + err_flux),
91 columns_flux[1]: fluxes[1]*(1 + err_flux),
92 _error_format(columns_flux[0]): np.sqrt(fluxes[0]),
93 _error_format(columns_flux[1]): np.sqrt(fluxes[1]),
94 DiffMatchedTractCatalogConfig.columns_target_select_true.default[0]: flags,
95 DiffMatchedTractCatalogConfig.columns_target_select_false.default[0]: ~flags,
96 DiffMatchedTractCatalogConfig.column_target_extended.default: extended_target,
97 }
98 self.catalog_target = pd.DataFrame(data=data_target)
100 self.catalog_match_ref = pd.DataFrame(data={
101 'match_candidate': flags,
102 'match_row': np.arange(len(ra))[::-1],
103 })
105 self.catalog_match_target = pd.DataFrame(data={
106 'match_candidate': flags,
107 'match_row': np.arange(len(ra))[::-1],
108 })
110 self.diff_matched = np.loadtxt(
111 os.path.join(os.path.dirname(__file__), "data", "test_diff_matched.txt")
112 )
114 columns_flux_configs = {
115 band: MatchedCatalogFluxesConfig(
116 column_ref_flux=columns_flux[idx],
117 columns_target_flux=[columns_flux[idx]],
118 columns_target_flux_err=[columns_flux_err[idx]],
119 )
120 for idx, band in enumerate(bands)
121 }
123 self.task = DiffMatchedTractCatalogTask(config=DiffMatchedTractCatalogConfig(
124 columns_target_coord_err=[column_ra_target_err, column_dec_target_err],
125 columns_flux=columns_flux_configs,
126 mag_num_bins=1,
127 ))
128 self.wcs = afwGeom.makeSkyWcs(crpix=lsst.geom.Point2D(9000, 9000),
129 crval=lsst.geom.SpherePoint(180., 0., lsst.geom.degrees),
130 cdMatrix=afwGeom.makeCdMatrix(scale=0.2*lsst.geom.arcseconds))
132 def tearDown(self):
133 del self.catalog_ref
134 del self.catalog_target
135 del self.catalog_match_ref
136 del self.catalog_match_target
137 del self.diff_matched
138 del self.task
139 del self.wcs
141 def test_DiffMatchedTractCatalogTask(self):
142 # These tables will have columns added to them in run
143 columns_ref, columns_target = (list(x.columns) for x in (self.catalog_ref, self.catalog_target))
144 result = self.task.run(
145 catalog_ref=self.catalog_ref,
146 catalog_target=self.catalog_target,
147 catalog_match_ref=self.catalog_match_ref,
148 catalog_match_target=self.catalog_match_target,
149 wcs=self.wcs,
150 )
151 columns_expect = columns_target
152 prefix = DiffMatchedTractCatalogConfig.column_matched_prefix_ref.default
153 columns_expect.append(f'{prefix}index')
154 columns_expect.extend((f'{prefix}{col}' for col in columns_ref))
155 self.assertEqual(columns_expect, list(result.cat_matched.columns))
156 row = result.diff_matched.iloc[0].values
157 self.assertEqual(len(row), len(self.diff_matched))
158 self.assertEqual(np.sum(row.astype(float) != self.diff_matched), 0)
161class MemoryTester(lsst.utils.tests.MemoryTestCase):
162 pass
165def setup_module(module):
166 lsst.utils.tests.init()
169if __name__ == "__main__": 169 ↛ 170line 169 didn't jump to line 170, because the condition on line 169 was never true
170 lsst.utils.tests.init()
171 unittest.main()