<gh_stars>0
#
# Copyright (c) 2013-2014 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#

import fixtures
import httplib2
import mock
import re
from six.moves import cStringIO as StringIO
import sys
from testtools import matchers

from cgtsclient import exc
from cgtsclient import shell as cgts_shell
from cgtsclient.tests import utils
from cgtsclient.v1.ihost import ihost

FAKE_ENV = {'OS_USERNAME': 'username',
            'OS_PASSWORD': 'password',
            'OS_PROJECT_NAME': 'project',
            'OS_REGION_NAME': 'region',
            'OS_TENANT_NAME': 'tenant_name',
            'OS_AUTH_URL': 'http://no.where'}


class ShellTest(utils.BaseTestCase):
    re_options = re.DOTALL | re.MULTILINE

    # Patch os.environ to avoid required auth info.
    def make_env(self, exclude=None):
        env = dict((k, v) for k, v in FAKE_ENV.items() if k != exclude)
        self.useFixture(fixtures.MonkeyPatch('os.environ', env))

    def setUp(self):
        super(ShellTest, self).setUp()

    def tearDown(self):
        super(ShellTest, self).tearDown()

    def shell(self, argstr):
        orig = sys.stdout
        try:
            sys.stdout = StringIO()
            _shell = cgts_shell.CgtsShell()
            _shell.main(argstr.split())
        except SystemExit:
            exc_type, exc_value, exc_traceback = sys.exc_info()
            self.assertEqual(exc_value.code, 0)
        finally:
            out = sys.stdout.getvalue()
            sys.stdout.close()
            sys.stdout = orig

        return out

    def test_help_unknown_command(self):
        self.assertRaises(exc.CommandError, self.shell, 'help foofoo')

    def test_debug(self):
        httplib2.debuglevel = 0
        self.shell('--debug help')
        self.assertEqual(httplib2.debuglevel, 1)

    def test_help(self):
        required = [
            '.*?^usage: system',
            '.*?^See "system help COMMAND" '
            'for help on a specific command',
        ]
        for argstr in ['--help', 'help']:
            help_text = self.shell(argstr)
            for r in required:
                self.assertThat(help_text,
                                matchers.MatchesRegex(r,
                                                      self.re_options))

    def test_help_on_subcommand(self):
        required = [
            '.*?^usage: system host-show <hostname or id>'
            '',
            ".*?^Show host attributes.",
            '',
            ".*?^Positional arguments:",
            ".*?^  <hostname or id>  Name or ID of host",
        ]
        argstrings = [
            'help host-show',
        ]
        for argstr in argstrings:
            help_text = self.shell(argstr)
            for r in required:
                self.assertThat(help_text,
                                matchers.MatchesRegex(r, self.re_options))

    def test_auth_param(self):
        self.make_env(exclude='OS_USERNAME')
        self.test_help()

    @mock.patch('cgtsclient.v1.ihost.ihostManager.list')
    @mock.patch('cgtsclient.client._get_ksclient')
    @mock.patch('cgtsclient.client._get_endpoint')
    def test_host_list(self, mock_get_endpoint, mock_get_client, mock_list):
        # This unit test mocks returning a single controller-0 host through host-list
        mock_get_endpoint.return_value = 'http://fakelocalhost:6385/v1'
        fake_controller = {'id': '0',
                           'hostname': 'controller-0',
                           'personality': 'controller',
                           'administrative': 'unlocked',
                           'operational': 'enabled',
                           'availability': 'available'}
        mock_list.return_value = [ihost(None, fake_controller, True)]
        self.make_env()
        host_results = self.shell("host-list")
        self.assertIn('controller-0', host_results)
        self.assertNotIn('controller-1', host_results)
