test_ctedispcube.py
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#! /usr/bin/env python
# ==========================================================================
# This scripts performs unit tests for the ctedispcube tool.
#
# Copyright (C) 2016-2017 Maria Haupt
#
# 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 ctedispcube tool #
# =============================== #
class Test(test):
"""
Test class for ctedispcube 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('ctedispcube')
# Append tests
self.append(self._test_cmd, 'Test ctedispcube on command line')
self.append(self._test_python, 'Test ctedispcube from Python')
# Return
return
# Test ctedispcube on command line
def _test_cmd(self):
"""
Test ctedispcube on the command line
"""
# Set tool name
ctedispcube = self._tool('ctedispcube')
# Setup ctedispcube command
cmd = ctedispcube+' inobs="'+self._events+'"'+ \
' incube="NONE"'+ \
' outcube="ctedispcube_cmd1.fits"'+ \
' caldb="'+self._caldb+'" irf="'+self._irf+'"'+ \
' ebinalg="LOG" emin=0.1 emax=100.0 enumbins=20'+ \
' nxpix=10 nypix=10 binsz=0.4'+ \
' coordsys="CEL" proj="CAR" xref=83.63 yref=22.01'+ \
' migramax=2.0 migrabins=10'+ \
' logfile="ctedispcube_cmd1.log" chatter=1'
# Check if execution of wrong command fails
self.test_assert(self._execute('command_that_does_not_exist') != 0,
'Self test of test script')
# 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('ctedispcube_cmd1.fits')
# Setup ctedispcube command
cmd = ctedispcube+' inobs="events_that_do_not_exist.fits"'+ \
' incube="NONE"'+ \
' outcube="ctedispcube_cmd2.fits"'+ \
' caldb="'+self._caldb+'" irf="'+self._irf+'"'+ \
' ebinalg="LOG" emin=0.1 emax=100.0 enumbins=20'+ \
' nxpix=10 nypix=10 binsz=0.4'+ \
' coordsys="CEL" proj="CAR" xref=83.63 yref=22.01'+ \
' migramax=2.0 migrabins=10'+ \
' logfile="ctedispcube_cmd2.log" debug=yes chatter=2'
# Check if execution failed
self.test_assert(self._execute(cmd) != 0,
'Check invalid input file when executed from command line')
# Check ctedispcube --help
self._check_help(ctedispcube)
# Return
return
# Test ctedispcube from Python
def _test_python(self):
"""
Test ctedispcube from Python
"""
# Allocate ctedispcube
edispcube = ctools.ctedispcube()
# Check that empty ctedispcube tool holds an energy dispersion
# cube that has no energy and migration bins
self._check_cube(edispcube.edispcube(), nenergies=0, nmigras=0)
# Check that saving does not nothing
edispcube['outcube'] = 'ctedispcube_py0.fits'
edispcube['logfile'] = 'ctedispcube_py0.log'
edispcube.logFileOpen()
edispcube.save()
self.test_assert(not os.path.isfile('ctedispcube_py0.fits'),
'Check that no energy dispersion cube has been created')
# Check that clearing does not lead to an exception or segfault
edispcube.clear()
# Now set ctedispcube parameters
edispcube['inobs'] = self._events
edispcube['incube'] = 'NONE'
edispcube['caldb'] = self._caldb
edispcube['irf'] = self._irf
edispcube['ebinalg'] = 'LOG'
edispcube['emin'] = 0.1
edispcube['emax'] = 100.0
edispcube['enumbins'] = 20
edispcube['nxpix'] = 10
edispcube['nypix'] = 10
edispcube['binsz'] = 0.4
edispcube['coordsys'] = 'CEL'
edispcube['proj'] = 'CAR'
edispcube['xref'] = 83.63
edispcube['yref'] = 22.01
edispcube['migramax'] = 2.0
edispcube['migrabins'] = 10
edispcube['outcube'] = 'ctedispcube_py1.fits'
edispcube['logfile'] = 'ctedispcube_py1.log'
edispcube['chatter'] = 2
# Run ctedispcube tool
edispcube.logFileOpen() # Make sure we get a log file
edispcube.run()
edispcube.save()
# Check result file
self._check_result_file('ctedispcube_py1.fits')
# Copy ctedispcube tool
cpy_edispcube = edispcube.copy()
# Check energy dispersion cube of ctedispcube copy
self._check_cube(cpy_edispcube.edispcube())
# Execute copy of ctedispcube tool again, now with a higher chatter
# level than before
cpy_edispcube['emin'] = 0.2
cpy_edispcube['emax'] = 150.0
cpy_edispcube['outcube'] = 'ctedispcube_py2.fits'
cpy_edispcube['logfile'] = 'ctedispcube_py2.log'
cpy_edispcube['addbounds'] = True
cpy_edispcube['chatter'] = 3
cpy_edispcube.logFileOpen() # Needed to get a new log file
cpy_edispcube.execute()
# Check result file
self._check_result_file('ctedispcube_py2.fits', nenergies=23)
# Now clear copy of ctedispcube tool
cpy_edispcube.clear()
# Check that the cleared copy has also cleared the energy dispersion
# cube
self._check_cube(cpy_edispcube.edispcube(), nenergies=0, nmigras=0)
# Get mixed observation container
obs = self._obs_mixed()
# Set-up ctedispcube from observation container
edispcube = ctools.ctedispcube(obs)
edispcube['incube'] = 'NONE'
edispcube['caldb'] = self._caldb
edispcube['irf'] = self._irf
edispcube['ebinalg'] = 'LOG'
edispcube['emin'] = 0.1
edispcube['emax'] = 100.0
edispcube['enumbins'] = 20
edispcube['nxpix'] = 10
edispcube['nypix'] = 10
edispcube['binsz'] = 0.4
edispcube['coordsys'] = 'CEL'
edispcube['proj'] = 'CAR'
edispcube['xref'] = 83.63
edispcube['yref'] = 22.01
edispcube['migramax'] = 2.0
edispcube['migrabins'] = 10
edispcube['addbounds'] = True
edispcube['outcube'] = 'ctedispcube_py3.fits'
edispcube['logfile'] = 'ctedispcube_py3.log'
edispcube['chatter'] = 4
# Execute ctedispcube tool
edispcube.logFileOpen() # Make sure we get a log file
edispcube.execute()
# Check result file
self._check_result_file('ctedispcube_py3.fits')
# Return
return
# Check result file
def _check_result_file(self, filename, nenergies=21):
"""
Check result file
Parameters
----------
filename : str
Energy dispersion cube file name
nenergies : int, optional
Number of energy bins
"""
# Open energy dispersion cube
cube = gammalib.GCTACubeEdisp(filename)
# Check cube
self._check_cube(cube, nenergies=nenergies)
# Return
return
# Check energy dispersion cube
def _check_cube(self, cube, nenergies=21, nmigras=10):
"""
Check energy dispersion cube
Parameters
----------
cube : `~gammalib.GCTACubeEdisp`
Energy dispersion cube
nenergies : int, optional
Number of energy bins
nmigras : int, optional
Number of migration bins
"""
# Check dimensions
self.test_value(len(cube.energies()), nenergies,
'Check number of energy maps')
self.test_value(len(cube.migras()), nmigras,
'Check number of migration bins')
# Return
return