test_ctlike.py
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#! /usr/bin/env python
# ==========================================================================
# This scripts performs unit tests for the ctlike 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 testing import test
# ========================== #
# Test class for ctlike tool #
# ========================== #
class Test(test):
"""
Test class for ctlike 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('ctlike')
# Append tests
self.append(self._test_cmd, 'Test ctlike on command line')
self.append(self._test_python, 'Test ctlike from Python')
# Return
return
# Test ctlike on command line
def _test_cmd(self):
"""
Test ctlike on the command line
"""
# Set tool name
ctlike = self._tool('ctlike')
# Setup ctlike command
cmd = ctlike+' inobs="'+self._events+'"'+ \
' inmodel="'+self._model+'"'+ \
' caldb="'+self._caldb+'" irf="'+self._irf+'"'+ \
' outmodel="ctlike_cmd1.xml"'+ \
' logfile="ctlike_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('ctlike_cmd1.xml')
# Setup ctlike command
cmd = ctlike+' inobs="event_file_that_does_not_exist.fits"'+ \
' inmodel="'+self._model+'"'+ \
' caldb="'+self._caldb+'" irf="'+self._irf+'"'+ \
' outmodel="ctlike_cmd2.xml"'+ \
' logfile="ctlike_cmd2.log" chatter=1'
# Check if execution failed
self.test_assert(self._execute(cmd) != 0,
'Check invalid input file when executed from command line')
# Return
return
# Test ctlike from Python
def _test_python(self):
"""
Test ctlike from Python
"""
# Set-up ctlike
like = ctools.ctlike()
like['inobs'] = self._events
like['inmodel'] = self._model
like['caldb'] = self._caldb
like['irf'] = self._irf
like['outmodel'] = 'ctlike_py1.xml'
like['logfile'] = 'ctlike_py1.log'
like['chatter'] = 2
# Run ctlike tool
like.logFileOpen() # Make sure we get a log file
like.run()
like.save()
# Check result file
self._check_result_file('ctlike_py1.xml')
# Retrieve observation container, save and check model file
obs = like.obs()
obs.models().save('ctlike_py2.xml')
self._check_result_file('ctlike_py2.xml')
# Retrieve optimizer
opt = like.opt()
# Return
return
# Check result file
def _check_result_file(self, filename):
"""
Check result file
"""
# Open result file
result = gammalib.GModels(filename)
# Check results
self.test_value(result['Crab']['Prefactor'].value(), 1.58907e-16,
1.0e-3, 'Check fitted Crab Prefactor')
self.test_value(result['Crab']['Prefactor'].error(), 0.0526982e-16,
1.0e-3, 'Check Crab Prefactor error')
self.test_value(result['Crab']['Index'].value(), -2.43549,
1.0e-3, 'Check fitted Crab Index')
self.test_value(result['Crab']['Index'].error(), 0.0248116,
1.0e-3, 'Check Crab Index error')
self.test_value(result['Background']['Prefactor'].value(), 61.6919e-6,
1.0e-3, 'Check fitted background Prefactor')
self.test_value(result['Background']['Prefactor'].error(), 1.49438e-6,
1.0e-3, 'Check background Prefactor error')
self.test_value(result['Background']['Index'].value(), -2.20535,
1.0e-3, 'Check fitted background Index')
self.test_value(result['Background']['Index'].error(), 0.0113269,
1.0e-3, 'Check background Index error')
self.test_value(result['Background']['Sigma'].value(), 3.04252,
1.0e-3, 'Check fitted background Sigma')
self.test_value(result['Background']['Sigma'].error(), 0.0307008,
1.0e-3, 'Check background Sigma error')
# Return
return