# The contents of this file are subject to the Mozilla Public License
# (MPL) Version 1.1 (the "License"); you may not use this file except
# in compliance with the License. You may obtain a copy of the License
# at http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS"
# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
# the License for the specific language governing rights and
# limitations under the License.
#
# The Original Code is LEPL (http://www.acooke.org/lepl)
# The Initial Developer of the Original Code is Andrew Cooke.
# Portions created by the Initial Developer are Copyright (C) 2009-2010
# Andrew Cooke (andrew@acooke.org). All Rights Reserved.
#
# Alternatively, the contents of this file may be used under the terms
# of the LGPL license (the GNU Lesser General Public License,
# http://www.gnu.org/licenses/lgpl.html), in which case the provisions
# of the LGPL License are applicable instead of those above.
#
# If you wish to allow use of your version of this file only under the
# terms of the LGPL License and not to allow others to use your version
# of this file under the MPL, indicate your decision by deleting the
# provisions above and replace them with the notice and other provisions
# required by the LGPL License.  If you do not delete the provisions
# above, a recipient may use your version of this file under either the
# MPL or the LGPL License.

'''
Tests for the lepl package.
'''

from logging import getLogger, basicConfig, DEBUG, WARN, ERROR
from sys import version
from types import ModuleType
from unittest import TestSuite, TestLoader, TextTestRunner

import lepl

# we need to import all files used in the automated self-test

# pylint: disable-msg=E0611, W0401
#@PydevCodeAnalysisIgnore
import lepl._test.bug_stalled_parser
import lepl._test.magus
import lepl._test.wrong_cache_bug
import lepl._test.wrong_depth_bug
import lepl._test.wrong_regexp_bug

# Number of tests if running in IDE with Python 3
TOTAL = 429
NOT_DISTRIBUTED = 12
NOT_3 = 22

MODULES = [('apps', []), 
           ('bin', []),
           ('cairo', []),
           ('contrib', []),
           ('core', []),
           ('lexer', [('lines', [])]), 
           ('matchers', []),
           ('regexp', []),
           ('stream', []),
           ('support', [])]

def all():
    '''
    This runs all tests and examples.  It is something of a compromise - seems
    to be the best solution that's independent of other libraries, doesn't
    use the file system (since code may be in a zip file), and keeps the
    number of required imports to a minimum.
    '''
    basicConfig(level=ERROR)
    log = getLogger('lepl._test.all.all')
    suite = TestSuite()
    loader = TestLoader()
    runner = TextTestRunner(verbosity=4)
    for module in ls_modules(lepl, MODULES):
        log.debug(module.__name__)
        suite.addTest(loader.loadTestsFromModule(module))
    result = runner.run(suite)
    print('\n\n\n----------------------------------------------------------'
          '------------\n')
    if version[0] == '2':
        print('Expect 2-5 failures + 2 errors in Python 2: {0:d}, {1:d} '
              .format(len(result.failures), len(result.errors)))
        assert 2 <= len(result.failures) <= 5, len(result.failures)
        assert 1 <= len(result.errors) <= 2, len(result.errors)
        target = TOTAL - NOT_DISTRIBUTED - NOT_3
    else:
        print('Expect at most 1 failure + 0 errors in Python 3: {0:d}, {1:d} '
              .format(len(result.failures), len(result.errors)))
        assert 0 <= len(result.failures) <= 1, len(result.failures)
        assert 0 <= len(result.errors) <= 0, len(result.errors)
        target = TOTAL - NOT_DISTRIBUTED
    print('Expect {0:d} tests total: {1:d}'.format(target, result.testsRun))
    assert result.testsRun == target, result.testsRun
    print('\nLooks OK to me!\n\n')


def ls_modules(parent, children):
    known = set()
    children += [('_test', []), ('_example', [])]
    children += map(lambda module: (module, []), dir(parent))
    for (child, unborn) in children:
        name = parent.__name__ + '.' + child
        try:
            __import__(name)
            module = getattr(parent, child)
            if isinstance(module, ModuleType) and module not in known:
                yield module
                known.add(module)
                for module in ls_modules(module, unborn):
                    yield module
        except ImportError as e:
            if not str(e).startswith('No module named'):
                raise

if __name__ == '__main__':
    all()