##############################################################################
#
# Copyright (c) 2001, 2002, 2009 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Component Architecture Tests
"""
import unittest

try:
    import zope.security
except ImportError:
    _HAS_ZOPE_SECURITY = False
else:
    _HAS_ZOPE_SECURITY = True

    class StandaloneTests(unittest.TestCase):
        def testStandalone(self):
            # See: https://bugs.launchpad.net/zope3/+bug/98401
            import subprocess
            import sys
            import os
            import pickle

            executable = os.path.abspath(sys.executable)
            where = os.path.dirname(os.path.dirname(__file__))
            program = os.path.join(where, 'standalonetests.py')
            process = subprocess.Popen([executable, program],
                                    stdout=subprocess.PIPE,
                                    stderr=subprocess.STDOUT,
                                    stdin=subprocess.PIPE)
            try:
                pickle.dump(sys.path, process.stdin)
                process.stdin.close()

                try:
                    rc = process.wait()
                except OSError as e:
                    # MacIntel raises apparently unimportant EINTR?
                    if e.errno != 4:
                        raise # TODO verify sanity of a pass on EINTR :-/
                if rc != 0:
                    output = process.stdout.read()
                    if isinstance(output, bytes):
                        output = output.decode()
                    sys.stderr.write('#' * 80 + '\n')
                    sys.stdout.write(output)
                    sys.stderr.write('#' * 80 + '\n')
                    self.fail('Output code: %d' % rc)
            finally:
                process.stdout.close()

def test_suite():
    if _HAS_ZOPE_SECURITY:
        return unittest.makeSuite(StandaloneTests)
    return unittest.TestSuite()