File: test_debuglang.py

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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
from ..debuglang import DebugLang
from .test_completerlang import CompleterLangTestCase


class TestDebugLang(CompleterLangTestCase):
    def setUp(self):
        self._parser = DebugLang()

    def test_first_token_is_a_command(self):
        self._assert_command_token_follows("")
        self._assert_command_token_follows(" ")
        self._assert_command_token_follows("foo")

    def test_print_expects_a_template_arg(self):
        self._assert_token_follows("print ", ["template", "ARG"])
        self._assert_token_follows("print $MSG ", [])

    def test_display_expects_a_template_arg(self):
        self._assert_token_follows("display ", ["template", "ARG"])
        self._assert_token_follows("display $MSG ", [])

    def test_generic_command_expects_a_series_of_args(self):
        self._assert_token_follows("foo ", ["ARG"])
        self._assert_token_follows("foo arg ", ["ARG"])
        self._assert_token_follows("foo arg arg ", ["ARG"])

    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)