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#############################################################################
# Copyright (c) 2015-2016 Balabit
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 as published
# by the Free Software Foundation, 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 St, Fifth Floor, Boston, MA 02110-1301 USA
#
# As an additional exemption you are allowed to compile & link against the
# OpenSSL libraries as published by the OpenSSL project. See the file
# COPYING for details.
#
#############################################################################
from __future__ import absolute_import, print_function
import unittest
from ..debuglang import DebugLang
class CompleterLangTestCase(unittest.TestCase):
def _get_expected_tokens(self, text):
drop_last_token = not text[-1:].isspace()
return self._parser.get_expected_tokens(text, drop_last_token=drop_last_token)
def _assert_token_follows(self, text, tokens, pos=None, replaced_token=None):
(expected_tokens, rtoken, rtoken_pos) = self._get_expected_tokens(text)
if pos is not None:
self.assertEqual(pos, rtoken_pos)
if replaced_token is not None:
self.assertEqual(rtoken.value if rtoken is not None else '', replaced_token)
self.assertLessEqual(set(tokens), set(expected_tokens))
class TestCompleterLang(CompleterLangTestCase):
"""This testcase intends to test the CompleterLang base class by
an example grammar, which happens to be DebugLang. The DebugLang grammar
itself is tested in a separate testcase."""
def setUp(self):
self._parser = DebugLang()
def test_all_tokens_are_found_that_would_match_rules_in_the_grammar(self):
self._assert_command_token_follows("", pos=0, replaced_token="")
self._assert_command_token_follows(" ", pos=1, replaced_token="")
self._assert_command_token_follows("foo", pos=0, replaced_token="foo")
self._assert_token_follows("foo ", ["ARG"], pos=4, replaced_token="")
self._assert_token_follows("foo bar", ["ARG"], pos=4, replaced_token="bar")
self._assert_token_follows("foo bar ", ["ARG"], pos=8, replaced_token="")
self._assert_token_follows("print ", ["template", "ARG"], pos=6, replaced_token="")
self._assert_token_follows("print $MSG", ["template", "ARG"], pos=6, replaced_token="$MSG")
self._assert_token_follows("print $MSG ", [], pos=11, replaced_token="")
def _get_command_tokens(self):
return [token for token in self._parser.tokens if token.startswith("COMMAND")]
def _assert_command_token_follows(self, text, pos=None, replaced_token=None):
self._assert_token_follows(text, set(self._get_command_tokens()), pos, replaced_token)
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