test_ctcubemask.py
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#! /usr/bin/env python
# ==========================================================================
# This scripts performs unit tests for the ctcubemask tool.
#
# Copyright (C) 2014-2017 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 ctcubemask tool #
# ============================== #
class Test(test):
"""
Test class for ctcubemask tool
"""
# Constructor
def __init__(self):
"""
Constructor
"""
# Call base class constructor
test.__init__(self)
# Set members
self._exclusion = self._datadir + '/exclusion.reg'
# Return
return
# Set test functions
def set(self):
"""
Set all test functions
"""
# Set test name
self.name('ctcubemask')
# Append tests
self.append(self._test_cmd, 'Test ctcubemask on command line')
self.append(self._test_python, 'Test ctcubemask from Python')
# Return
return
# Test ctcubemask on command line
def _test_cmd(self):
"""
Test ctcubemask on the command line
"""
# Set tool name
ctcubemask = self._tool('ctcubemask')
# Setup ctcubemask command
cmd = ctcubemask+' inobs="'+self._cntcube+'"'+ \
' regfile="'+self._exclusion+'"'+ \
' outcube="ctcubemask_cmd1.fits"'+ \
' ra=83.63 dec=22.01 rad=2.0'+ \
' emin=0.1 emax=100.0'+ \
' logfile="ctcubemask_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('ctcubemask_cmd1.fits')
# Setup ctcubemask command
cmd = ctcubemask+' inobs="counts_cube_that_does_not_exist.fits"'+ \
' regfile="'+self._exclusion+'"'+ \
' outcube="ctcubemask_cmd2.fits"'+ \
' ra=83.63 dec=22.01 rad=2.0'+ \
' emin=0.1 emax=100.0'+ \
' logfile="ctcubemask_cmd2.log" chatter=2'
# Check if execution failed
self.test_assert(self._execute(cmd) != 0,
'Check invalid input file when executed from command line')
# Check ctcubemask --help
self._check_help(ctcubemask)
# Return
return
# Test ctcubemask from Python
def _test_python(self):
"""
Test ctcubemask from Python
"""
# Allocate ctcubemask
mask = ctools.ctcubemask()
# Check that empty ctcubemask tool holds an empty observation
self._check_obs(mask.obs(), nobs=0)
# Check that saving saves an empty counts cube
mask['outcube'] = 'ctcubemask_py0.fits'
mask['logfile'] = 'ctcubemask_py0.log'
mask.logFileOpen()
mask.save()
self.test_assert(not os.path.isfile('ctcubemask_py0.fits'),
'Check that no counts cube has been created')
# Check that clearing does not lead to an exception or segfault
mask.clear()
# Now set ctcubemask parameters
mask['inobs'] = self._cntcube
mask['regfile'] = self._exclusion
mask['ra'] = 83.63
mask['dec'] = 22.01
mask['rad'] = 2.0
mask['emin'] = 0.1
mask['emax'] = 100.0
mask['outcube'] = 'ctcubemask_py1.fits'
mask['logfile'] = 'ctcubemask_py1.log'
mask['chatter'] = 2
# Run ctcubemask tool
mask.logFileOpen() # Make sure we get a log file
mask.run()
mask.save()
# Check result file
self._check_result_file('ctcubemask_py1.fits')
# Set-up ctcubemask without exclusion regions but tighter energy
# selection
mask = ctools.ctcubemask()
mask['inobs'] = self._cntcube
mask['regfile'] = 'NONE'
mask['ra'] = 83.63
mask['dec'] = 22.01
mask['rad'] = 3.0
mask['emin'] = 1.0
mask['emax'] = 100.0
mask['outcube'] = 'ctcubemask_py2.fits'
mask['logfile'] = 'ctcubemask_py2.log'
mask['chatter'] = 3
mask['publish'] = True
# Execute ctcubemask tool
mask.logFileOpen() # Make sure we get a log file
mask.execute()
# Check result file
self._check_result_file('ctcubemask_py2.fits', events=573)
# Copy ctcubemask tool
cpy_mask = mask.copy()
# Check that ctcubemask tool holds one observation
self._check_obs(cpy_mask.obs())
# Execute copy of ctcubemask tool again, now with a higher chatter
# level than before
cpy_mask['outcube'] = 'ctcubemask_py3.fits'
cpy_mask['logfile'] = 'ctcubemask_py3.log'
cpy_mask['chatter'] = 4
cpy_mask.execute()
# Check result file
self._check_result_file('ctcubemask_py3.fits', events=573)
# Clear ctcubemask tool
cpy_mask.clear()
# Check that empty ctcubemask tool holds an empty observation
self._check_obs(cpy_mask.obs(), nobs=0)
# Prepare observation container
obs = self._obs_mixed()
obs.models(gammalib.GModels(self._model))
# Set-up ctcubemask from observation container, don't perform any
# energy selection
mask = ctools.ctcubemask(obs)
mask['regfile'] = 'NONE'
mask['ra'] = 83.63
mask['dec'] = 22.01
mask['rad'] = 3.0
mask['emin'] = 'NONE'
mask['emax'] = 'NONE'
mask['outcube'] = 'ctcubemask_py4.xml'
mask['logfile'] = 'ctcubemask_py4.log'
mask['chatter'] = 3
# Execute ctcubemask tool
mask.logFileOpen() # Make sure we get a log file
mask.execute()
# Check result file
self._check_result_file('filtered_crab_cntmap.fits', events=5542)
# Return
return
# Check result file
def _check_result_file(self, filename, events=4921):
"""
Check result file
"""
# Load counts cube
cube = gammalib.GCTAEventCube(filename)
# Check counts cube
self.test_value(cube.size(), 800000, 'Check for number of cube bins')
self.test_value(cube.number(), events, 'Check for number of events')
# Return
return
# Check observation container
def _check_obs(self, obs, nobs=1):
"""
Check observation container
Parameters
----------
obs : `~gammalib.GObservations`
Observation container
nobs : int, optional
Expected number of observations
"""
# Check size of observation container
self.test_value(obs.size(), nobs, 'Check size of observation container')
# Return
return