# Copyright (C) 2007, Matteo Bertini
# Based on previous work under copyright (c) 2001, 2002 McMillan Enterprises, Inc.
#
# 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 2
# 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA


# Compare attributes of ElementTree (cElementTree) module from frozen executable
# with ElementTree (cElementTree) module from standard python.


import copy
import os
import subprocess
import sys
import xml.etree.ElementTree as ET
import xml.etree.cElementTree as cET


if hasattr(sys, 'frozen'):
    # In frozen mode current working dir is the path with final executable.
    _pyexe_file = os.path.join('..', '..', 'python_exe.build')
else:
    _pyexe_file = 'python_exe.build'

_lines = open(_pyexe_file).readlines()
_pyexe = _lines[0].strip()
_env_path = _lines[2].strip()


def exec_python(pycode):
    """
    Wrap running python script in a subprocess.

    Return stdout of the invoked command.
    """
    # Environment variable 'PATH' has to be defined on Windows.
    # Otherwise dynamic library pythonXY.dll cannot be found by
    # Python executable.
    env = copy.deepcopy(os.environ)
    env['PATH'] = _env_path
    out = subprocess.Popen([_pyexe, '-c', pycode], env=env,
        stdout=subprocess.PIPE, shell=False).stdout.read()

    return out.strip()


def compare(test_name, expect, frozen):
    print(test_name)
    print('  Attributes expected: ' + expect)
    print('  Attributes current: ' + frozen)
    print('')
    # Compare attributes of frozen module with unfronzen module.
    if not frozen == expect:
        raise SystemExit('Frozen module has no same attribuses as unfrozen.')


# Pure Python module.
_expect = exec_python('import xml.etree.ElementTree as ET; print dir(ET)')
_frozen = str(dir(ET))
compare('ElementTree', _expect, _frozen)


# C-extension Python module.
_expect = exec_python('import xml.etree.cElementTree as cET; print dir(cET)')
_frozen = str(dir(cET))
compare('cElementTree', _expect, _frozen)