Coverage for tests/test_ptcDataset.py: 8%
229 statements
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1# This file is part of ip_isr.
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/>.
21import unittest
22import tempfile
23import copy
24import logging
26import numpy as np
28import lsst.utils.tests
30from lsst.ip.isr import PhotonTransferCurveDataset
31import lsst.ip.isr.isrMock as isrMock
34class PtcDatasetCases(lsst.utils.tests.TestCase):
35 """Test that write/read methods of PhotonTransferCurveDataset work
36 """
37 def setUp(self):
39 self.flatMean = 2000
40 self.readNoiseAdu = 10
41 mockImageConfig = isrMock.IsrMock.ConfigClass()
43 # flatDrop is not really relevant as we replace the data
44 # but good to note it in case we change how this image is made
45 mockImageConfig.flatDrop = 0.99999
46 mockImageConfig.isTrimmed = True
48 self.flatExp1 = isrMock.FlatMock(config=mockImageConfig).run()
49 self.flatExp2 = self.flatExp1.clone()
50 (shapeY, shapeX) = self.flatExp1.getDimensions()
52 self.flatWidth = np.sqrt(self.flatMean) + self.readNoiseAdu
54 self.rng1 = np.random.RandomState(1984)
55 flatData1 = self.rng1.normal(self.flatMean, self.flatWidth, (shapeX, shapeY))
56 self.rng2 = np.random.RandomState(666)
57 flatData2 = self.rng2.normal(self.flatMean, self.flatWidth, (shapeX, shapeY))
59 self.flatExp1.image.array[:] = flatData1
60 self.flatExp2.image.array[:] = flatData2
62 self.flux = 1000. # ADU/sec
63 self.gain = 1.5 # e-/ADU
64 self.noiseSq = 5*self.gain # 7.5 (e-)^2
65 self.c1 = 1./self.gain
66 self.timeVec = np.arange(1., 101., 5)
67 self.k2NonLinearity = -5e-6
68 # quadratic signal-chain non-linearity
69 muVec = self.flux*self.timeVec + self.k2NonLinearity*self.timeVec**2
71 self.ampNames = [amp.getName() for amp in self.flatExp1.getDetector().getAmplifiers()]
72 self.dataset = PhotonTransferCurveDataset(self.ampNames, " ") # pack raw data for fitting
73 self.covariancesSqrtWeights = {}
74 for ampName in self.ampNames: # just the expTimes and means here - vars vary per function
75 self.dataset.rawExpTimes[ampName] = self.timeVec
76 self.dataset.rawMeans[ampName] = muVec
77 self.covariancesSqrtWeights[ampName] = []
79 def _checkTypes(self, ptcDataset):
80 """Check that all the types are correct for a ptc dataset."""
81 for ampName in ptcDataset.ampNames:
82 self.assertIsInstance(ptcDataset.expIdMask[ampName], np.ndarray)
83 self.assertEqual(ptcDataset.expIdMask[ampName].dtype, bool)
84 self.assertIsInstance(ptcDataset.rawExpTimes[ampName], np.ndarray)
85 self.assertEqual(ptcDataset.rawExpTimes[ampName].dtype, np.float64)
86 self.assertIsInstance(ptcDataset.rawMeans[ampName], np.ndarray)
87 self.assertEqual(ptcDataset.rawMeans[ampName].dtype, np.float64)
88 self.assertIsInstance(ptcDataset.rawVars[ampName], np.ndarray)
89 self.assertEqual(ptcDataset.rawVars[ampName].dtype, np.float64)
90 self.assertEqual(ptcDataset.rowMeanVariance[ampName].dtype, np.float64)
91 self.assertIsInstance(ptcDataset.gain[ampName], float)
92 self.assertIsInstance(ptcDataset.gainErr[ampName], float)
93 self.assertIsInstance(ptcDataset.noise[ampName], float)
94 self.assertIsInstance(ptcDataset.noiseErr[ampName], float)
95 self.assertIsInstance(ptcDataset.histVars[ampName], np.ndarray)
96 self.assertEqual(ptcDataset.histVars[ampName].dtype, np.float64)
97 self.assertIsInstance(ptcDataset.histChi2Dofs[ampName], np.ndarray)
98 self.assertEqual(ptcDataset.histChi2Dofs[ampName].dtype, np.float64)
99 self.assertIsInstance(ptcDataset.kspValues[ampName], np.ndarray)
100 self.assertEqual(ptcDataset.kspValues[ampName].dtype, np.float64)
101 self.assertIsInstance(ptcDataset.ptcFitPars[ampName], np.ndarray)
102 self.assertEqual(ptcDataset.ptcFitPars[ampName].dtype, np.float64)
103 self.assertIsInstance(ptcDataset.ptcFitParsError[ampName], np.ndarray)
104 self.assertEqual(ptcDataset.ptcFitParsError[ampName].dtype, np.float64)
105 self.assertIsInstance(ptcDataset.ptcFitChiSq[ampName], float)
106 self.assertIsInstance(ptcDataset.ptcTurnoff[ampName], float)
107 self.assertIsInstance(ptcDataset.covariances[ampName], np.ndarray)
108 self.assertEqual(ptcDataset.covariances[ampName].dtype, np.float64)
109 self.assertIsInstance(ptcDataset.covariancesModel[ampName], np.ndarray)
110 self.assertEqual(ptcDataset.covariancesModel[ampName].dtype, np.float64)
111 self.assertIsInstance(ptcDataset.covariancesSqrtWeights[ampName], np.ndarray)
112 self.assertEqual(ptcDataset.covariancesSqrtWeights[ampName].dtype, np.float64)
113 self.assertIsInstance(ptcDataset.aMatrix[ampName], np.ndarray)
114 self.assertEqual(ptcDataset.aMatrix[ampName].dtype, np.float64)
115 self.assertIsInstance(ptcDataset.bMatrix[ampName], np.ndarray)
116 self.assertEqual(ptcDataset.bMatrix[ampName].dtype, np.float64)
117 self.assertIsInstance(ptcDataset.noiseMatrix[ampName], np.ndarray)
118 self.assertEqual(ptcDataset.noiseMatrix[ampName].dtype, np.float64)
119 self.assertIsInstance(ptcDataset.covariancesModelNoB[ampName], np.ndarray)
120 self.assertEqual(ptcDataset.covariancesModelNoB[ampName].dtype, np.float64)
121 self.assertIsInstance(ptcDataset.aMatrixNoB[ampName], np.ndarray)
122 self.assertEqual(ptcDataset.aMatrixNoB[ampName].dtype, np.float64)
123 self.assertIsInstance(ptcDataset.noiseMatrixNoB[ampName], np.ndarray)
124 self.assertEqual(ptcDataset.noiseMatrixNoB[ampName].dtype, np.float64)
125 self.assertIsInstance(ptcDataset.finalVars[ampName], np.ndarray)
126 self.assertEqual(ptcDataset.finalVars[ampName].dtype, np.float64)
127 self.assertIsInstance(ptcDataset.finalModelVars[ampName], np.ndarray)
128 self.assertEqual(ptcDataset.finalModelVars[ampName].dtype, np.float64)
129 self.assertIsInstance(ptcDataset.finalMeans[ampName], np.ndarray)
130 self.assertEqual(ptcDataset.finalMeans[ampName].dtype, np.float64)
131 self.assertIsInstance(ptcDataset.photoCharges[ampName], np.ndarray)
132 self.assertEqual(ptcDataset.photoCharges[ampName].dtype, np.float64)
134 for key, value in ptcDataset.auxValues.items():
135 self.assertIsInstance(value, np.ndarray)
136 self.assertEqual(value.dtype, np.float64)
138 def test_emptyPtcDataset(self):
139 """Test an empty PTC dataset."""
140 emptyDataset = PhotonTransferCurveDataset(
141 self.ampNames,
142 ptcFitType="PARTIAL",
143 )
144 self._checkTypes(emptyDataset)
146 with tempfile.NamedTemporaryFile(suffix=".yaml") as f:
147 usedFilename = emptyDataset.writeText(f.name)
148 fromText = PhotonTransferCurveDataset.readText(usedFilename)
149 self.assertEqual(emptyDataset, fromText)
150 self._checkTypes(emptyDataset)
152 with tempfile.NamedTemporaryFile(suffix=".fits") as f:
153 usedFilename = emptyDataset.writeFits(f.name)
154 fromFits = PhotonTransferCurveDataset.readFits(usedFilename)
155 self.assertEqual(emptyDataset, fromFits)
156 self._checkTypes(emptyDataset)
158 def test_partialPtcDataset(self):
159 """Test of a partial PTC dataset."""
160 # Fill the dataset with made up data.
161 nSideCovMatrix = 2
162 nSideCovMatrixFullCovFit = 2
164 partialDataset = PhotonTransferCurveDataset(
165 self.ampNames,
166 ptcFitType="PARTIAL",
167 covMatrixSide=nSideCovMatrix,
168 covMatrixSideFullCovFit=nSideCovMatrixFullCovFit
169 )
170 self._checkTypes(partialDataset)
172 for ampName in partialDataset.ampNames:
173 partialDataset.setAmpValuesPartialDataset(
174 ampName,
175 inputExpIdPair=(10, 11),
176 rawExpTime=10.0,
177 rawMean=10.0,
178 rawVar=10.0,
179 )
181 for useAuxValues in [False, True]:
182 if useAuxValues:
183 partialDataset.setAuxValuesPartialDataset(
184 {
185 "CCOBCURR": 1.0,
186 "CCDTEMP": 0.0,
187 }
188 )
189 self._checkTypes(partialDataset)
191 with tempfile.NamedTemporaryFile(suffix=".yaml") as f:
192 usedFilename = partialDataset.writeText(f.name)
193 fromText = PhotonTransferCurveDataset.readText(usedFilename)
194 self.assertEqual(fromText, partialDataset)
195 self._checkTypes(fromText)
197 with tempfile.NamedTemporaryFile(suffix=".fits") as f:
198 usedFilename = partialDataset.writeFits(f.name)
199 fromFits = PhotonTransferCurveDataset.readFits(usedFilename)
200 self.assertEqual(fromFits, partialDataset)
201 self._checkTypes(fromFits)
203 def test_ptcDatset(self):
204 """Test of a full PTC dataset."""
205 # Fill the dataset with made up data.
206 nSignalPoints = 5
207 nSideCovMatrixInput = 3 # Size of measured covariances
209 for nSideCovMatrixFullCovFitInput in np.arange(1, nSideCovMatrixInput + 2):
210 for fitType in ['POLYNOMIAL', 'EXPAPPROXIMATION', 'FULLCOVARIANCE']:
211 localDataset = PhotonTransferCurveDataset(
212 self.ampNames,
213 ptcFitType=fitType,
214 covMatrixSide=nSideCovMatrixInput,
215 covMatrixSideFullCovFit=nSideCovMatrixFullCovFitInput,
216 )
217 nSideCovMatrix = localDataset.covMatrixSide
218 nSideCovMatrixFullCovFit = localDataset.covMatrixSideFullCovFit
219 localDataset.badAmps = [localDataset.ampNames[0], localDataset.ampNames[1]]
220 for ampName in localDataset.ampNames:
222 localDataset.inputExpIdPairs[ampName] = [(1, 2)]*nSignalPoints
223 localDataset.expIdMask[ampName] = np.ones(nSignalPoints, dtype=bool)
224 localDataset.expIdMask[ampName][1] = False
225 localDataset.rawExpTimes[ampName] = np.arange(nSignalPoints, dtype=np.float64)
226 localDataset.rawMeans[ampName] = self.flux*np.arange(nSignalPoints)
227 localDataset.rawVars[ampName] = self.c1*self.flux*np.arange(nSignalPoints)
228 localDataset.photoCharges[ampName] = np.full(nSignalPoints, np.nan)
229 localDataset.gain[ampName] = self.gain
230 localDataset.gainErr[ampName] = 0.1
231 localDataset.noise[ampName] = self.noiseSq
232 localDataset.noiseErr[ampName] = 2.0
233 localDataset.histVars[ampName] = localDataset.rawVars[ampName]
234 localDataset.histChi2Dofs[ampName] = np.full(nSignalPoints, 1.0)
235 localDataset.kspValues[ampName] = np.full(nSignalPoints, 0.5)
237 localDataset.finalVars[ampName] = self.c1*self.flux*np.arange(nSignalPoints)
238 localDataset.finalModelVars[ampName] = np.full(nSignalPoints, 100.0)
239 localDataset.finalMeans[ampName] = self.flux*np.arange(nSignalPoints)
241 if fitType in ['POLYNOMIAL', 'EXPAPPROXIMATION', ]:
242 localDataset.ptcFitPars[ampName] = np.array([10.0, 1.5, 1e-6])
243 localDataset.ptcFitParsError[ampName] = np.array([1.0, 0.2, 1e-7])
244 localDataset.ptcFitChiSq[ampName] = 1.0
245 localDataset.ptcTurnoff[ampName] = localDataset.rawMeans[ampName][-1]
247 localDataset.covariances[ampName] = np.full(
248 (nSignalPoints, nSideCovMatrix, nSideCovMatrix), 105.0)
249 localDataset.covariancesModel[ampName] = np.full(
250 (nSignalPoints, nSideCovMatrixFullCovFit, nSideCovMatrixFullCovFit), np.nan)
251 localDataset.covariancesSqrtWeights[ampName] = np.full((nSignalPoints, nSideCovMatrix,
252 nSideCovMatrix), 10.0)
253 localDataset.aMatrix[ampName] = np.full((nSideCovMatrixFullCovFit,
254 nSideCovMatrixFullCovFit), np.nan)
255 localDataset.bMatrix[ampName] = np.full((nSideCovMatrixFullCovFit,
256 nSideCovMatrixFullCovFit), np.nan)
257 localDataset.noiseMatrix[ampName] = np.full((nSideCovMatrixFullCovFit,
258 nSideCovMatrixFullCovFit), np.nan)
259 localDataset.covariancesModelNoB[ampName] = np.full((nSignalPoints,
260 nSideCovMatrixFullCovFit,
261 nSideCovMatrixFullCovFit), np.nan)
262 localDataset.aMatrixNoB[ampName] = np.full(
263 (nSideCovMatrixFullCovFit, nSideCovMatrixFullCovFit), np.nan)
264 localDataset.noiseMatrixNoB[ampName] = np.full(
265 (nSideCovMatrixFullCovFit, nSideCovMatrixFullCovFit), np.nan)
267 if localDataset.ptcFitType in ['FULLCOVARIANCE', ]:
268 localDataset.ptcFitPars[ampName] = np.array([np.nan, np.nan])
269 localDataset.ptcFitParsError[ampName] = np.array([np.nan, np.nan])
270 localDataset.ptcFitChiSq[ampName] = np.nan
271 localDataset.ptcTurnoff[ampName] = np.nan
273 localDataset.covariances[ampName] = np.full(
274 (nSignalPoints, nSideCovMatrix, nSideCovMatrix), 105.0)
275 localDataset.covariancesModel[ampName] = np.full(
276 (nSignalPoints, nSideCovMatrixFullCovFit, nSideCovMatrixFullCovFit), 100.0)
277 localDataset.covariancesSqrtWeights[ampName] = np.full((nSignalPoints, nSideCovMatrix,
278 nSideCovMatrix), 10.0)
279 localDataset.aMatrix[ampName] = np.full((nSideCovMatrixFullCovFit,
280 nSideCovMatrixFullCovFit), 1e-6)
281 localDataset.bMatrix[ampName] = np.full((nSideCovMatrixFullCovFit,
282 nSideCovMatrixFullCovFit), 1e-7)
283 localDataset.noiseMatrix[ampName] = np.full((nSideCovMatrixFullCovFit,
284 nSideCovMatrixFullCovFit), 3.0)
285 localDataset.covariancesModelNoB[ampName] = np.full((nSignalPoints,
286 nSideCovMatrixFullCovFit,
287 nSideCovMatrixFullCovFit), 15.0)
288 localDataset.aMatrixNoB[ampName] = np.full(
289 (nSideCovMatrixFullCovFit, nSideCovMatrixFullCovFit), 2e-6)
290 localDataset.noiseMatrixNoB[ampName] = np.full(
291 (nSideCovMatrixFullCovFit, nSideCovMatrixFullCovFit), 3.0)
293 for useAuxValues in [False, True]:
294 if useAuxValues:
295 localDataset.auxValues = {
296 "CCOBCURR": np.ones(nSignalPoints),
297 "CCDTEMP": np.zeros(nSignalPoints),
298 }
300 self._checkTypes(localDataset)
301 with tempfile.NamedTemporaryFile(suffix=".yaml") as f:
302 usedFilename = localDataset.writeText(f.name)
303 fromText = PhotonTransferCurveDataset.readText(usedFilename)
304 self.assertEqual(fromText, localDataset)
305 self._checkTypes(fromText)
307 with tempfile.NamedTemporaryFile(suffix=".fits") as f:
308 usedFilename = localDataset.writeFits(f.name)
309 fromFits = PhotonTransferCurveDataset.readFits(usedFilename)
310 self.assertEqual(fromFits, localDataset)
311 self._checkTypes(fromFits)
313 def test_getExpIdsUsed(self):
314 localDataset = copy.copy(self.dataset)
316 for pair in [(12, 34), (56, 78), (90, 10)]:
317 localDataset.inputExpIdPairs["C:0,0"].append(pair)
318 localDataset.expIdMask["C:0,0"] = np.array([True, False, True])
319 self.assertTrue(np.all(localDataset.getExpIdsUsed("C:0,0") == [(12, 34), (90, 10)]))
321 localDataset.expIdMask["C:0,0"] = np.array([True, False, True, True]) # wrong length now
322 with self.assertRaises(AssertionError):
323 localDataset.getExpIdsUsed("C:0,0")
325 def test_getGoodAmps(self):
326 dataset = self.dataset
328 self.assertTrue(dataset.ampNames == self.ampNames)
329 dataset.badAmps.append("C:0,1")
330 self.assertTrue(dataset.getGoodAmps() == [amp for amp in self.ampNames if amp != "C:0,1"])
332 def test_ptcDataset_pre_dm38309(self):
333 """Test for PTC datasets created by cpSolvePtcTask prior to DM-38309.
334 """
335 localDataset = copy.copy(self.dataset)
337 for pair in [[(12, 34)], [(56, 78)], [(90, 10)]]:
338 localDataset.inputExpIdPairs["C:0,0"].append(pair)
339 localDataset.expIdMask["C:0,0"] = np.array([True, False, True])
341 with self.assertLogs("lsst.ip.isr.calibType", logging.WARNING) as cm:
342 used = localDataset.getExpIdsUsed("C:0,0")
343 self.assertIn("PTC file was written incorrectly", cm.output[0])
345 self.assertTrue(np.all(used == [(12, 34), (90, 10)]))
348class MemoryTester(lsst.utils.tests.MemoryTestCase):
349 pass
352def setup_module(module):
353 lsst.utils.tests.init()
356if __name__ == "__main__": 356 ↛ 357line 356 didn't jump to line 357, because the condition on line 356 was never true
357 import sys
358 setup_module(sys.modules[__name__])
359 unittest.main()