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# 

# LSST Data Management System 

# Copyright 2008, 2009, 2010 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/>. 

# 

 

"""Test lsst.coadd.utils.setMaskBits 

""" 

import unittest 

 

import lsst.utils.tests 

import lsst.afw.image as afwImage 

import lsst.coadd.utils as coaddUtils 

from lsst.log import Log 

 

Log.getLogger("coadd.utils").setLevel(Log.INFO) 

 

 

def countBits(val): 

nBits = 0 

while val > 0: 

if val & 1 != 0: 

nBits += 1 

val >>= 1 

return nBits 

 

 

MaxBitMask = (2**afwImage.Mask().getNumPlanesMax() - 1) 

MaskPlaneNameIDDict = dict(afwImage.Mask().getMaskPlaneDict()) 

 

 

class AddToCoaddTestCase(unittest.TestCase): 

"""A test case for setMaskBits 

""" 

 

def testBits(self): 

"""Test that the bits set are correct""" 

 

fullPlaneNameList = list(MaskPlaneNameIDDict.keys()) 

totNumBits = countBits(MaxBitMask) 

for i in range(len(fullPlaneNameList)): 

numPlanes = i + 1 

setPlaneNameList = fullPlaneNameList[0:numPlanes] 

 

bitMask = coaddUtils.makeBitMask(setPlaneNameList) 

self.assertEqual(countBits(bitMask), numPlanes) 

for planeName, planeId in MaskPlaneNameIDDict.items(): 

self.assertEqual((bitMask & (1 << planeId)) > 0, planeName in setPlaneNameList) 

 

invBitMask = coaddUtils.makeBitMask(setPlaneNameList, doInvert=True) 

self.assertEqual(countBits(invBitMask), totNumBits - numPlanes) 

for planeName, planeId in MaskPlaneNameIDDict.items(): 

self.assertEqual((invBitMask & (1 << planeId)) > 0, planeName not in setPlaneNameList) 

 

 

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

pass 

 

 

def setup_module(module): 

lsst.utils.tests.init() 

 

 

80 ↛ 81line 80 didn't jump to line 81, because the condition on line 80 was never trueif __name__ == "__main__": 

lsst.utils.tests.init() 

unittest.main()