test_ctmodel.py
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#! /usr/bin/env python
# ==========================================================================
# This scripts performs unit tests for the ctmodel tool.
#
# Copyright (C) 2014-2018 Juergen Knoedlseder
#
# 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 GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# ==========================================================================
import os
import gammalib
import ctools
from testing import test
# =========================== #
# Test class for ctmodel tool #
# =========================== #
class Test(test):
"""
Test class for ctmodel tool
"""
# Constructor
def __init__(self):
"""
Constructor
"""
# Call base class constructor
test.__init__(self)
# Return
return
# Set test functions
def set(self):
"""
Set all test functions
"""
# Set test name
self.name('ctmodel')
# Append tests
self.append(self._test_cmd, 'Test ctmodel on command line')
self.append(self._test_python, 'Test ctmodel from Python')
# Return
return
# Test ctmodel on command line
def _test_cmd(self):
"""
Test ctmodel on the command line
"""
# Set tool name
ctmodel = self._tool('ctmodel')
# Setup ctmodel command
cmd = ctmodel+' incube="NONE" inobs="NONE" expcube="NONE"'+\
' psfcube="NONE" bkgcube="NONE"'+ \
' outcube="ctmodel_cmd1.fits"'+ \
' inmodel="'+self._model+'"'+ \
' caldb="'+self._caldb+'" irf="'+self._irf+'"'+ \
' rad=5.0 ra=83.63 dec=22.01 tmin=0.0 tmax=1800'+ \
' emin=0.1 emax=100.0 enumbins=10 ebinalg="LOG"'+ \
' nxpix=40 nypix=40'+ \
' binsz=0.1 coordsys="CEL" proj="CAR"'+ \
' xref=83.63 yref=22.01'+ \
' logfile="ctmodel_cmd1.log" chatter=1'
# Check if execution was successful
self.test_assert(self._execute(cmd) == 0,
'Check successful execution from command line')
# Check result file
self._check_result_file('ctmodel_cmd1.fits')
# Setup ctmodel command
cmd = ctmodel+' incube="NONE" inobs="NONE" expcube="NONE"'+\
' psfcube="NONE" bkgcube="NONE"'+ \
' outcube="ctmodel_cmd2.fits"'+ \
' inmodel="model_that_does_not_exist.xml"'+ \
' caldb="'+self._caldb+'" irf="'+self._irf+'"'+ \
' rad=5.0 ra=83.63 dec=22.01 tmin=0.0 tmax=1800'+ \
' emin=0.1 emax=100.0 enumbins=10 ebinalg="LOG"'+ \
' nxpix=40 nypix=40'+ \
' binsz=0.1 coordsys="CEL" proj="CAR"'+ \
' xref=83.63 yref=22.01'+ \
' logfile="ctmodel_cmd2.log" debug=yes chatter=1'
# Check if execution failed
self.test_assert(self._execute(cmd, success=False) != 0,
'Check invalid input file when executed from command line')
# Check ctmodel --help
self._check_help(ctmodel)
# Return
return
# Test ctmodel from Python
def _test_python(self):
"""
Test ctmodel from Python
"""
# Allocate ctmodel
model = ctools.ctmodel()
# Check that empty ctmodel tool holds an empty model cube
self._check_cube(model.cube(), nx=0, ny=0, nebins=0)
# Check that saving does not nothing
model['outcube'] = 'ctmodel_py0.fits'
model['logfile'] = 'ctmodel_py0.log'
model.logFileOpen()
model.save()
self.test_assert(not os.path.isfile('ctmodel_py0.fits'),
'Check that no model cube has been created')
# Check that clearing does not lead to an exception or segfault
model.clear()
# Now set ctmodel parameters
model['incube'] = 'NONE'
model['inmodel'] = self._model
model['inobs'] = 'NONE'
model['expcube'] = 'NONE'
model['psfcube'] = 'NONE'
model['bkgcube'] = 'NONE'
model['caldb'] = self._caldb
model['irf'] = self._irf
model['rad'] = 5
model['ra'] = 83.63
model['dec'] = 22.01
model['tmin'] = 0
model['tmax'] = 1800
model['ebinalg'] = 'LOG'
model['emin'] = 0.1
model['emax'] = 100.0
model['enumbins'] = 10
model['nxpix'] = 40
model['nypix'] = 40
model['binsz'] = 0.1
model['coordsys'] = 'CEL'
model['proj'] = 'CAR'
model['xref'] = 83.63
model['yref'] = 22.01
model['outcube'] = 'ctmodel_py1.fits'
model['logfile'] = 'ctmodel_py1.log'
model['chatter'] = 2
# Run ctmodel tool
model.logFileOpen() # Make sure we get a log file
model.run()
model.save()
# Check result file
self._check_result_file('ctmodel_py1.fits')
# Copy ctmodel tool
cpy_model = model.copy()
# Check model cube of ctmodel copy
self._check_cube(cpy_model.cube())
# Execute copy of ctmodel tool again, now with a higher chatter
# level than before
cpy_model['outcube'] = 'ctmodel_py2.fits'
cpy_model['logfile'] = 'ctmodel_py2.log'
cpy_model['publish'] = True
cpy_model['chatter'] = 3
cpy_model.logFileOpen() # Needed to get a new log file
cpy_model.execute()
# Check result file
self._check_result_file('ctmodel_py2.fits')
# Now clear copy of ctmodel tool
cpy_model.clear()
# Check that the cleared copy has also cleared the model cube
self._check_cube(cpy_model.cube(), nx=0, ny=0, nebins=0)
# Get mixed observation container
obs = self._obs_mixed()
# Setup ctmodel tool from observation container and get model cube
# definition from counts cube
model = ctools.ctmodel(obs)
model.models(gammalib.GModels(self._model))
model['incube'] = self._cntcube
model['expcube'] = 'NONE'
model['psfcube'] = 'NONE'
model['bkgcube'] = 'NONE'
model['caldb'] = self._caldb
model['irf'] = self._irf
model['outcube'] = 'ctmodel_py3.fits'
model['logfile'] = 'ctmodel_py3.log'
model['chatter'] = 4
# Execute ctmodel tool
model.logFileOpen() # Needed to get a new log file
model.execute()
# Check result file
self._check_result_file('ctmodel_py3.fits', nx=200, ny=200, nebins=20)
# Publish with name
model.publish('My model')
# Return
return
# Check result file
def _check_result_file(self, filename, nx=40, ny=40, nebins=10):
"""
Check result file
Parameters
----------
filename : str
Model cube file name
nx : int, optional
Number of pixels in X direction
ny : int, optional
Number of pixels in Y direction
nebins : int, optional
Number of energy bins
"""
# Open result file
cube = gammalib.GCTAEventCube(filename)
# Check cube
self._check_cube(cube, nx=nx, ny=ny, nebins=nebins)
# Return
return
# Check model cube
def _check_cube(self, cube, nx=40, ny=40, nebins=10):
"""
Check model cube
Parameters
----------
cube : `~gammalib.GCTAEventCube`
Model cube
nx : int, optional
Number of pixels in X direction
ny : int, optional
Number of pixels in Y direction
nebins : int, optional
Number of energy bins
"""
# Check number of bins per axis
self.test_value(cube.nx(), nx, 'Check number of X pixels')
self.test_value(cube.ny(), ny, 'Check number of Y pixels')
self.test_value(cube.ebins(), nebins, 'Check number of energy bins')
# Return
return