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unit_tests/test_actions_git_reinstall.py
 
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from mock import patch
 
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with patch('charmhelpers.core.hookenv.config') as config:
 
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    config.return_value = 'neutron'
 
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    import neutron_api_utils as utils  # noqa
 
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import git_reinstall
 
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from test_utils import (
 
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    CharmTestCase
 
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)
 
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TO_PATCH = [
 
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    'config',
 
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]
 
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openstack_origin_git = \
 
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    """repositories:
 
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         - {name: requirements,
 
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            repository: 'git://git.openstack.org/openstack/requirements',
 
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            branch: stable/juno}
 
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         - {name: neutron,
 
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            repository: 'git://git.openstack.org/openstack/neutron',
 
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            branch: stable/juno}"""
 
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class TestNeutronAPIActions(CharmTestCase):
 
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    def setUp(self):
 
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        super(TestNeutronAPIActions, self).setUp(git_reinstall, TO_PATCH)
 
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        self.config.side_effect = self.test_config.get
 
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    @patch.object(git_reinstall, 'action_set')
 
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    @patch.object(git_reinstall, 'action_fail')
 
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    @patch.object(git_reinstall, 'git_install')
 
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    def test_git_reinstall(self, git_install, action_fail, action_set):
 
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        self.test_config.set('openstack-origin-git', openstack_origin_git)
 
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        git_reinstall.git_reinstall()
 
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        git_install.assert_called_with(openstack_origin_git)
 
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        self.assertTrue(git_install.called)
 
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        self.assertFalse(action_set.called)
 
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        self.assertFalse(action_fail.called)
 
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    @patch.object(git_reinstall, 'action_set')
 
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    @patch.object(git_reinstall, 'action_fail')
 
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    @patch.object(git_reinstall, 'git_install')
 
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    @patch('charmhelpers.contrib.openstack.utils.config')
 
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    def test_git_reinstall_not_configured(self, _config, git_install,
 
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                                          action_fail, action_set):
 
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        _config.return_value = None
 
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        git_reinstall.git_reinstall()
 
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        msg = 'openstack-origin-git is not configured'
 
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        action_fail.assert_called_with(msg)
 
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        self.assertFalse(git_install.called)
 
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        self.assertFalse(action_set.called)
 
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    @patch.object(git_reinstall, 'action_set')
 
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    @patch.object(git_reinstall, 'action_fail')
 
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    @patch.object(git_reinstall, 'git_install')
 
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    @patch('charmhelpers.contrib.openstack.utils.config')
 
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    def test_git_reinstall_exception(self, _config, git_install,
 
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                                     action_fail, action_set):
 
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        _config.return_value = openstack_origin_git
 
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        e = OSError('something bad happened')
 
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        git_install.side_effect = e
 
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        traceback = (
 
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            "Traceback (most recent call last):\n"
 
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            "  File \"actions/git_reinstall.py\", line 33, in git_reinstall\n"
 
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            "    git_install(config(\'openstack-origin-git\'))\n"
 
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            "  File \"/usr/lib/python2.7/dist-packages/mock.py\", line 964, in __call__\n"  # noqa
 
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            "    return _mock_self._mock_call(*args, **kwargs)\n"
 
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            "  File \"/usr/lib/python2.7/dist-packages/mock.py\", line 1019, in _mock_call\n"  # noqa
 
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            "    raise effect\n"
 
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            "OSError: something bad happened\n")
 
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        git_reinstall.git_reinstall()
 
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        msg = 'git-reinstall resulted in an unexpected error'
 
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        action_fail.assert_called_with(msg)
 
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        action_set.assert_called_with({'traceback': traceback})