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# 

# LSST Data Management System 

# Copyright 2015-2017 LSST Corporation. 

# 

# This product includes software developed by the 

# LSST Project (http://www.lsst.org/). 

# 

# This program is free software: you can redistribute it and/or modify 

# it under the terms of the GNU General Public License as published by 

# the Free Software Foundation, either version 3 of the License, or 

# (at your option) any later version. 

# 

# This program is distributed in the hope that it will be useful, 

# but WITHOUT ANY WARRANTY; without even the implied warranty of 

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

# GNU General Public License for more details. 

# 

# You should have received a copy of the LSST License Statement and 

# the GNU General Public License along with this program. If not, 

# see <http://www.lsstcorp.org/LegalNotices/>. 

# 

from __future__ import absolute_import, division, print_function 

import os 

import sys 

import unittest 

 

import lsst.afw.math as afwMath 

import lsst.daf.persistence as dafPersist 

from lsst.obs.lsstSim import LsstSimIsrTask 

import lsst.utils.tests 

 

 

class LsstSimIsrTaskTestCase(unittest.TestCase): 

"""A test case for LsstSimIsrTask 

""" 

 

def setUp(self): 

self.butler = dafPersist.Butler(root=os.path.join(os.path.dirname(__file__), "data")) 

self.ampRef = self.butler.dataRef("raw", level=None, 

dataId=dict(visit=85471048, snap=0, raft='0,3', 

sensor='0,1', channel='1,0')) 

 

def tearDown(self): 

del self.butler 

del self.ampRef 

 

def testRunDataRef(self): 

"""Test LsstSimIsrTask on amp-sized images in tests/data/ 

 

applyToSensorRef is not intended to take single amp-sized exposures, but will 

run if the doAssembleCcd config parameter is False. 

However, the exposure is not trimmed, and gain not reset. 

""" 

config = LsstSimIsrTask.ConfigClass() 

config.doDark = False 

config.doFringe = False 

config.doAssembleCcd = False 

config.doSnapCombine = False 

lsstIsrTask = LsstSimIsrTask(config=config) 

exposure = lsstIsrTask.runDataRef(self.ampRef).exposure 

self.assertAlmostEqual(afwMath.makeStatistics(exposure.getMaskedImage(), afwMath.MEAN).getValue(), 

2.855780, places=3) 

 

def testRun(self): 

"""Test LsstSimIsrTask on amp-sized images in tests/data/ 

 

Do not assembleCcd. 

""" 

config = LsstSimIsrTask.ConfigClass() 

config.doDark = False 

config.doFringe = False 

config.doAssembleCcd = False 

config.doSnapCombine = False 

lsstIsrTask = LsstSimIsrTask(config=config) 

ampExp = self.ampRef.get('raw') 

camera = self.ampRef.get("camera") 

isrData = lsstIsrTask.readIsrData(self.ampRef, ampExp) 

postIsrExp = lsstIsrTask.run(ampExp, camera=camera, **isrData.getDict()).exposure 

self.assertAlmostEqual(ampExp.getMetadata().get('GAIN'), postIsrExp.getMetadata().get('GAIN')) 

self.assertAlmostEqual(ampExp.getDimensions()[0], postIsrExp.getDimensions()[0]) 

self.assertAlmostEqual(ampExp.getDimensions()[1], postIsrExp.getDimensions()[1]) 

self.assertAlmostEqual(afwMath.makeStatistics(postIsrExp.getMaskedImage(), afwMath.MEAN).getValue(), 

2.855780, places=3) 

 

 

class MemoryTester(lsst.utils.tests.MemoryTestCase): 

pass 

 

 

def setup_module(module): 

lsst.utils.tests.init() 

 

 

94 ↛ 95line 94 didn't jump to line 95, because the condition on line 94 was never trueif __name__ == "__main__": 

setup_module(sys.modules[__name__]) 

unittest.main()