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# Copyright 2014-2016 Nathan West
#
# This file is part of autocommand.
#
# autocommand is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# autocommand 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with autocommand. If not, see <http://www.gnu.org/licenses/>.
import pytest
import sys
from unittest.mock import patch, sentinel
from autocommand import autocommand
autocommand_module = sys.modules['autocommand.autocommand']
def _asyncio_unavailable():
try:
import asyncio
# This is here to silence flake8 complaining about "unused import"
assert asyncio
except ImportError:
return True
else:
return False
skip_if_async_unavailable = pytest.mark.skipif(
_asyncio_unavailable(),
reason="async tests require asyncio (python3.4+)")
@pytest.fixture
def patched_autoparse():
with patch.object(
autocommand_module,
'autoparse',
autospec=True) as autoparse:
yield autoparse
@pytest.fixture
def patched_autoasync():
with patch.object(
autocommand_module,
'autoasync',
create=True) as autoasync:
if sys.version_info < (3, 4):
autoasync.side_effect = NameError('autoasync')
yield autoasync
@pytest.fixture
def patched_automain():
with patch.object(
autocommand_module,
'automain',
autospec=True) as automain:
yield automain
def test_autocommand_no_async(
patched_automain,
patched_autoasync,
patched_autoparse):
autocommand_wrapped = autocommand(
sentinel.module,
description=sentinel.description,
epilog=sentinel.epilog,
add_nos=sentinel.add_nos,
parser=sentinel.parser)(sentinel.original_function)
assert not patched_autoasync.called
patched_autoparse.assert_called_once_with(
sentinel.original_function,
description=sentinel.description,
epilog=sentinel.epilog,
add_nos=sentinel.add_nos,
parser=sentinel.parser)
autoparse_wrapped = patched_autoparse.return_value
patched_automain.assert_called_once_with(sentinel.module)
patched_automain.return_value.assert_called_once_with(autoparse_wrapped)
automain_wrapped = patched_automain.return_value.return_value
assert automain_wrapped is autocommand_wrapped
@pytest.mark.parametrize(
'input_loop, output_loop',
[(sentinel.loop, sentinel.loop),
(True, None)])
@skip_if_async_unavailable
def test_autocommand_with_async(
patched_automain,
patched_autoasync,
patched_autoparse,
input_loop, output_loop):
autocommand_wrapped = autocommand(
sentinel.module,
description=sentinel.description,
epilog=sentinel.epilog,
add_nos=sentinel.add_nos,
parser=sentinel.parser,
loop=input_loop,
forever=sentinel.forever,
pass_loop=sentinel.pass_loop)(sentinel.original_function)
patched_autoasync.assert_called_once_with(
sentinel.original_function,
loop=output_loop,
forever=sentinel.forever,
pass_loop=sentinel.pass_loop)
autoasync_wrapped = patched_autoasync.return_value
patched_autoparse.assert_called_once_with(
autoasync_wrapped,
description=sentinel.description,
epilog=sentinel.epilog,
add_nos=sentinel.add_nos,
parser=sentinel.parser)
autoparse_wrapped = patched_autoparse.return_value
patched_automain.assert_called_once_with(sentinel.module)
patched_automain.return_value.assert_called_once_with(autoparse_wrapped)
automain_wrapped = patched_automain.return_value.return_value
assert automain_wrapped is autocommand_wrapped
def test_autocommand_incorrect_invocation_no_parenthesis(
patched_automain,
patched_autoparse,
patched_autoasync):
'''
Test that an exception is raised if the autocommand decorator is called
without parenthesis by accident
'''
with pytest.raises(TypeError):
@autocommand
def original_function():
pass
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