test_ctobssim.py
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#! /usr/bin/env python
# ==========================================================================
# This scripts performs unit tests for the ctobssim tool.
#
# Copyright (C) 2014-2016 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 gammalib
import ctools
from cscripts import obsutils
from testing import test
# ============================ #
# Test class for ctobssim tool #
# ============================ #
class Test(test):
"""
Test class for ctobssim tools
This test class makes unit tests for the ctobssim tool by using it from
the command line and from Python.
"""
# 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('ctobssim')
# Append tests
self.append(self._test_ctobssim_cmd, 'Test ctobssim on command line')
self.append(self._test_ctobssim_python, 'Test ctobssim from Python')
# Return
return
# Test ctobssim on command line
def _test_ctobssim_cmd(self):
"""
Test ctobssim on the command line
"""
# Set tool name
ctobssim = self._tool('ctobssim')
# Setup ctobssim command
cmd = ctobssim+' inmodel="'+self._model+'" '+ \
' outevents="events.fits"'+ \
' caldb="'+self._caldb+'" irf="'+self._irf+'" '+ \
' ra=83.63 dec=22.01 rad=10.0'+ \
' tmin=0.0 tmax=1800.0 emin=0.1 emax=100.0'
# 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')
# Load counts cube and check content.
evt = gammalib.GCTAEventList('events.fits')
self._test_list(evt, 6881)
# Setup ctobssim command
cmd = ctobssim+' inmodel="model_that_does_not_exist.xml"'+ \
' outevents="events.fits"'+ \
' caldb="'+self._caldb+'" irf="'+self._irf+'" '+ \
' ra=83.63 dec=22.01 rad=10.0'+ \
' tmin=0.0 tmax=1800.0 emin=0.1 emax=100.0'
# Check if execution failed
self.test_assert(self._execute(cmd) != 0,
'Check invalid input file when executed from command line')
# Return
return
# Test ctobssim from Python
def _test_ctobssim_python(self):
"""
Test ctobssim from Python
"""
# Set-up ctobssim
sim = ctools.ctobssim()
sim['inmodel'] = self._model
sim['outevents'] = 'events.fits'
sim['caldb'] = self._caldb
sim['irf'] = self._irf
sim['ra'] = 83.63
sim['dec'] = 22.01
sim['rad'] = 10.0
sim['tmin'] = 0.0
sim['tmax'] = 1800.0
sim['emin'] = 0.1
sim['emax'] = 100.0
# Run tool
sim.run()
# Check content of observation
self._test_observation(sim)
self._test_list(sim.obs()[0].events(), 6881)
# Save events
sim.save()
# Load counts cube and check content.
evt = gammalib.GCTAEventList('events.fits')
self._test_list(evt, 6881)
# Set-up observation container
pnts = [{'ra': 83.63, 'dec': 21.01},
{'ra': 84.63, 'dec': 22.01},
{'ra': 83.63, 'dec': 23.01},
{'ra': 82.63, 'dec': 22.01}]
obs = obsutils.set_obs_list(pnts, caldb=self._caldb, irf=self._irf)
# Set-up ctobssim from observation container
sim = ctools.ctobssim(obs)
sim['outevents'] = 'sim_events.xml'
sim['inmodel'] = self._model
# Run tool
sim.run()
# Retrieve observation and check content
self._test_observation(sim, nobs=4, pnts=pnts)
self._test_list(sim.obs()[0].events(), 6003)
self._test_list(sim.obs()[1].events(), 6084)
self._test_list(sim.obs()[2].events(), 5955)
self._test_list(sim.obs()[3].events(), 6030)
# Save events
sim.save()
# Load events
obs = gammalib.GObservations('sim_events.xml')
# Retrieve observation and check content
self._test_list(obs[0].events(), 6003)
self._test_list(obs[1].events(), 6084)
self._test_list(obs[2].events(), 5955)
self._test_list(obs[3].events(), 6030)
# Set-up ctobssim with invalid event file
sim = ctools.ctobssim()
sim['inmodel'] = 'model_file_that_does_not_exist.xml'
sim['outevents'] = 'events.fits'
sim['caldb'] = self._caldb
sim['irf'] = self._irf
sim['ra'] = 83.63
sim['dec'] = 22.01
sim['rad'] = 10.0
sim['tmin'] = 0.0
sim['tmax'] = 1800.0
sim['emin'] = 0.1
sim['emax'] = 100.0
# Run ctbin tool
self.test_try('Run ctobssim with invalid model file')
try:
sim.run()
self.test_try_failure()
except:
self.test_try_success()
# Return
return
# Check observation
def _test_observation(self, ctobssim, nobs=1,
pnts=[{'ra': 83.63, 'dec': 22.01}]):
"""
Test content of an observation
Parameters
----------
ctobssim : `~ctools.ctobssim`
ctobssim instance
nobs : int
Number of observations
pnts : list of dict
List of pointing dictionaries
"""
# Test observation container
self.test_value(ctobssim.obs().size(), nobs,
'There is one observation')
for i in range(ctobssim.obs().size()):
obs = gammalib.GCTAObservation(ctobssim.obs()[i])
pnt = obs.pointing()
self.test_assert(obs.instrument() == 'CTA',
'Observation is CTA observation')
self.test_value(obs.ontime(), 1800.0, 1.0e-6,
'Ontime is 1800 sec')
self.test_value(obs.livetime(), 1710.0, 1.0e-6,
'Livetime is 1710 sec')
self.test_value(pnt.dir().ra_deg(), pnts[i]['ra'], 1.0e-6,
'Pointing Right Ascension is '+str(pnts[i]['ra'])+' deg')
self.test_value(pnt.dir().dec_deg(), pnts[i]['dec'], 1.0e-6,
'Pointing Declination is '+str(pnts[i]['dec'])+' deg')
# Return
return
# Check event list
def _test_list(self, list, nevents):
"""
Test content of event list
Parameters
----------
list : `~gammalib.GCTAEventList`
Event list
nevents : int
Expected number of events
"""
# Test event list
self.test_value(list.size(), nevents, str(nevents)+' elements')
self.test_value(list.number(), nevents, str(nevents)+' events')
# Return
return