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# Copyright (C) 2009-2012 Lars Wirzenius
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
import unittest
from cliapp import HookManager, FilterHook
class HookManagerTests(unittest.TestCase):
def setUp(self):
self.hooks = HookManager()
self.hooks.new('foo', FilterHook())
def callback(self, *args, **kwargs):
self.args = args
self.kwargs = kwargs
def test_has_no_tests_initially(self):
hooks = HookManager()
self.assertEqual(hooks.hooks, {})
def test_adds_new_hook(self):
self.assertTrue('foo' in self.hooks.hooks)
def test_adds_callback(self):
self.hooks.add_callback('foo', self.callback)
self.assertEqual(self.hooks.hooks['foo'].callbacks, [self.callback])
def test_removes_callback(self):
cb_id = self.hooks.add_callback('foo', self.callback)
self.hooks.remove_callback('foo', cb_id)
self.assertEqual(self.hooks.hooks['foo'].callbacks, [])
def test_calls_callbacks(self):
self.hooks.add_callback('foo', self.callback)
self.hooks.call('foo', 'bar', kwarg='foobar')
self.assertEqual(self.args, ('bar',))
self.assertEqual(self.kwargs, {'kwarg': 'foobar'})
def test_call_returns_value_of_callbacks(self):
self.hooks.new('bar', FilterHook())
self.hooks.add_callback('bar', lambda data: data + 1)
self.assertEqual(self.hooks.call('bar', 1), 2)
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