# Copyright 2012 OpenStack Foundation
# All Rights Reserved.
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

import base64
import sys

import testtools

from tempest.api.compute import base
from tempest import clients
from tempest.common.utils import data_utils
from tempest import config
from tempest import exceptions
from tempest import test

CONF = config.CONF


class ServersNegativeV3Test(base.BaseV3ComputeTest):

    def setUp(self):
        super(ServersNegativeV3Test, self).setUp()
        try:
            self.client.wait_for_server_status(self.server_id, 'ACTIVE')
        except Exception:
            self.__class__.server_id = self.rebuild_server(self.server_id)

    def tearDown(self):
            self.server_check_teardown()
            super(ServersNegativeV3Test, self).tearDown()

    @classmethod
    def setUpClass(cls):
        super(ServersNegativeV3Test, cls).setUpClass()
        cls.client = cls.servers_client
        cls.alt_os = clients.AltManager()
        cls.alt_client = cls.alt_os.servers_v3_client
        resp, server = cls.create_test_server(wait_until='ACTIVE')
        cls.server_id = server['id']

    @test.attr(type=['negative', 'gate'])
    def test_server_name_blank(self):
        # Create a server with name parameter empty

        self.assertRaises(exceptions.BadRequest,
                          self.create_test_server,
                          name='')

    @test.attr(type=['negative', 'gate'])
    def test_create_with_invalid_image(self):
        # Create a server with an unknown image

        self.assertRaises(exceptions.BadRequest,
                          self.create_test_server,
                          image_id=-1)

    @test.attr(type=['negative', 'gate'])
    def test_create_with_invalid_flavor(self):
        # Create a server with an unknown flavor

        self.assertRaises(exceptions.BadRequest,
                          self.create_test_server,
                          flavor=-1,)

    @test.attr(type=['negative', 'gate'])
    def test_invalid_access_ip_v4_address(self):
        # An access IPv4 address must match a valid address pattern

        IPv4 = '1.1.1.1.1.1'
        self.assertRaises(exceptions.BadRequest,
                          self.create_test_server, access_ip_v4=IPv4)

    @test.attr(type=['negative', 'gate'])
    def test_invalid_ip_v6_address(self):
        # An access IPv6 address must match a valid address pattern

        IPv6 = 'notvalid'

        self.assertRaises(exceptions.BadRequest,
                          self.create_test_server, access_ip_v6=IPv6)

    @test.attr(type=['negative', 'gate'])
    def test_resize_nonexistent_server(self):
        # Resize a non-existent server
        nonexistent_server = data_utils.rand_uuid()
        self.assertRaises(exceptions.NotFound,
                          self.client.resize,
                          nonexistent_server, self.flavor_ref)

    @test.attr(type=['negative', 'gate'])
    def test_resize_server_with_non_existent_flavor(self):
        # Resize a server with non-existent flavor
        nonexistent_flavor = data_utils.rand_uuid()
        self.assertRaises(exceptions.BadRequest, self.client.resize,
                          self.server_id, flavor_ref=nonexistent_flavor)

    @test.attr(type=['negative', 'gate'])
    def test_resize_server_with_null_flavor(self):
        # Resize a server with null flavor
        self.assertRaises(exceptions.BadRequest, self.client.resize,
                          self.server_id, flavor_ref="")

    @test.attr(type=['negative', 'gate'])
    def test_reboot_non_existent_server(self):
        # Reboot a non existent server
        nonexistent_server = data_utils.rand_uuid()
        self.assertRaises(exceptions.NotFound, self.client.reboot,
                          nonexistent_server, 'SOFT')

    @testtools.skipUnless(CONF.compute_feature_enabled.pause,
                          'Pause is not available.')
    @test.attr(type=['negative', 'gate'])
    def test_pause_paused_server(self):
        # Pause a paused server.
        self.client.pause_server(self.server_id)
        self.client.wait_for_server_status(self.server_id, 'PAUSED')
        self.assertRaises(exceptions.Conflict,
                          self.client.pause_server,
                          self.server_id)
        self.client.unpause_server(self.server_id)

    @test.attr(type=['negative', 'gate'])
    def test_rebuild_reboot_deleted_server(self):
        # Rebuild and Reboot a deleted server
        _, server = self.create_test_server()
        self.client.delete_server(server['id'])
        self.client.wait_for_server_termination(server['id'])

        self.assertRaises(exceptions.NotFound,
                          self.client.rebuild,
                          server['id'], self.image_ref_alt)
        self.assertRaises(exceptions.NotFound, self.client.reboot,
                          server['id'], 'SOFT')

    @test.attr(type=['negative', 'gate'])
    def test_rebuild_non_existent_server(self):
        # Rebuild a non existent server
        nonexistent_server = data_utils.rand_uuid()
        meta = {'rebuild': 'server'}
        new_name = data_utils.rand_name('server')
        file_contents = 'Test server rebuild.'
        personality = [{'path': '/etc/rebuild.txt',
                        'contents': base64.b64encode(file_contents)}]
        self.assertRaises(exceptions.NotFound,
                          self.client.rebuild,
                          nonexistent_server,
                          self.image_ref_alt,
                          name=new_name, meta=meta,
                          personality=personality,
                          adminPass='rebuild')

    @test.attr(type=['negative', 'gate'])
    def test_create_numeric_server_name(self):
        # Create a server with a numeric name
        server_name = 12345
        self.assertRaises(exceptions.BadRequest,
                          self.create_test_server,
                          name=server_name)

    @test.attr(type=['negative', 'gate'])
    def test_create_server_name_length_exceeds_256(self):
        # Create a server with name length exceeding 256 characters

        server_name = 'a' * 256
        self.assertRaises(exceptions.BadRequest,
                          self.create_test_server,
                          name=server_name)

    @test.skip_because(bug="1208743")
    @test.attr(type=['negative', 'gate'])
    def test_create_with_invalid_network_uuid(self):
        # Pass invalid network uuid while creating a server

        networks = [{'fixed_ip': '10.0.1.1', 'uuid': 'a-b-c-d-e-f-g-h-i-j'}]
        self.assertRaises(exceptions.BadRequest,
                          self.create_test_server,
                          networks=networks)

    @test.attr(type=['negative', 'gate'])
    def test_create_with_non_existent_keypair(self):
        # Pass a non-existent keypair while creating a server

        key_name = data_utils.rand_name('key')
        self.assertRaises(exceptions.BadRequest,
                          self.create_test_server,
                          key_name=key_name)

    @test.skip_because(bug="1273948")
    @test.attr(type=['negative', 'gate'])
    def test_create_server_metadata_exceeds_length_limit(self):
        # Pass really long metadata while creating a server

        metadata = {'a': 'b' * 260}
        self.assertRaises(exceptions.BadRequest,
                          self.create_test_server,
                          meta=metadata)

    @test.attr(type=['negative', 'gate'])
    def test_update_name_of_non_existent_server(self):
        # Update name of a non-existent server

        server_name = data_utils.rand_name('server')
        new_name = data_utils.rand_name('server') + '_updated'

        self.assertRaises(exceptions.NotFound, self.client.update_server,
                          server_name, name=new_name)

    @test.attr(type=['negative', 'gate'])
    def test_update_server_set_empty_name(self):
        # Update name of the server to an empty string

        server_name = data_utils.rand_name('server')
        new_name = ''

        self.assertRaises(exceptions.BadRequest, self.client.update_server,
                          server_name, name=new_name)

    @test.attr(type=['negative', 'gate'])
    def test_update_server_of_another_tenant(self):
        # Update name of a server that belongs to another tenant

        new_name = self.server_id + '_new'
        self.assertRaises(exceptions.NotFound,
                          self.alt_client.update_server, self.server_id,
                          name=new_name)

    @test.attr(type=['negative', 'gate'])
    def test_update_server_name_length_exceeds_256(self):
        # Update name of server exceed the name length limit

        new_name = 'a' * 256
        self.assertRaises(exceptions.BadRequest,
                          self.client.update_server,
                          self.server_id,
                          name=new_name)

    @test.attr(type=['negative', 'gate'])
    def test_delete_non_existent_server(self):
        # Delete a non existent server

        nonexistent_server = data_utils.rand_uuid()
        self.assertRaises(exceptions.NotFound, self.client.delete_server,
                          nonexistent_server)

    @test.attr(type=['negative', 'gate'])
    def test_delete_a_server_of_another_tenant(self):
        # Delete a server that belongs to another tenant
        self.assertRaises(exceptions.NotFound,
                          self.alt_client.delete_server,
                          self.server_id)

    @test.attr(type=['negative', 'gate'])
    def test_delete_server_pass_negative_id(self):
        # Pass an invalid string parameter to delete server

        self.assertRaises(exceptions.NotFound, self.client.delete_server, -1)

    @test.attr(type=['negative', 'gate'])
    def test_delete_server_pass_id_exceeding_length_limit(self):
        # Pass a server ID that exceeds length limit to delete server

        self.assertRaises(exceptions.NotFound, self.client.delete_server,
                          sys.maxint + 1)

    @test.attr(type=['negative', 'gate'])
    def test_create_with_nonexistent_security_group(self):
        # Create a server with a nonexistent security group

        security_groups = [{'name': 'does_not_exist'}]
        self.assertRaises(exceptions.BadRequest,
                          self.create_test_server,
                          security_groups=security_groups)

    @test.attr(type=['negative', 'gate'])
    def test_get_non_existent_server(self):
        # Get a non existent server details
        nonexistent_server = data_utils.rand_uuid()
        self.assertRaises(exceptions.NotFound, self.client.get_server,
                          nonexistent_server)

    @test.attr(type=['negative', 'gate'])
    def test_stop_non_existent_server(self):
        # Stop a non existent server
        nonexistent_server = data_utils.rand_uuid()
        self.assertRaises(exceptions.NotFound, self.servers_client.stop,
                          nonexistent_server)

    @test.attr(type=['negative', 'gate'])
    def test_pause_non_existent_server(self):
        # pause a non existent server
        nonexistent_server = data_utils.rand_uuid()
        self.assertRaises(exceptions.NotFound, self.client.pause_server,
                          nonexistent_server)

    @test.attr(type=['negative', 'gate'])
    def test_unpause_non_existent_server(self):
        # unpause a non existent server
        nonexistent_server = data_utils.rand_uuid()
        self.assertRaises(exceptions.NotFound, self.client.unpause_server,
                          nonexistent_server)

    @test.attr(type=['negative', 'gate'])
    def test_unpause_server_invalid_state(self):
        # unpause an active server.
        self.assertRaises(exceptions.Conflict,
                          self.client.unpause_server,
                          self.server_id)

    @testtools.skipUnless(CONF.compute_feature_enabled.suspend,
                          'Suspend is not available.')
    @test.attr(type=['negative', 'gate'])
    def test_suspend_non_existent_server(self):
        # suspend a non existent server
        nonexistent_server = data_utils.rand_uuid()
        self.assertRaises(exceptions.NotFound, self.client.suspend_server,
                          nonexistent_server)

    @testtools.skipUnless(CONF.compute_feature_enabled.suspend,
                          'Suspend is not available.')
    @test.attr(type=['negative', 'gate'])
    def test_suspend_server_invalid_state(self):
        # suspend a suspended server.
        resp, _ = self.client.suspend_server(self.server_id)
        self.assertEqual(202, resp.status)
        self.client.wait_for_server_status(self.server_id, 'SUSPENDED')
        self.assertRaises(exceptions.Conflict,
                          self.client.suspend_server,
                          self.server_id)
        self.client.resume_server(self.server_id)

    @test.attr(type=['negative', 'gate'])
    def test_resume_non_existent_server(self):
        # resume a non existent server
        nonexistent_server = data_utils.rand_uuid()
        self.assertRaises(exceptions.NotFound, self.client.resume_server,
                          nonexistent_server)

    @testtools.skipUnless(CONF.compute_feature_enabled.suspend,
                          'Suspend is not available.')
    @test.attr(type=['negative', 'gate'])
    def test_resume_server_invalid_state(self):
        # resume an active server.
        self.assertRaises(exceptions.Conflict,
                          self.client.resume_server,
                          self.server_id)

    @test.attr(type=['negative', 'gate'])
    def test_get_console_output_of_non_existent_server(self):
        # get the console output for a non existent server
        nonexistent_server = data_utils.rand_uuid()
        self.assertRaises(exceptions.NotFound,
                          self.client.get_console_output,
                          nonexistent_server, 10)

    @test.attr(type=['negative', 'gate'])
    def test_force_delete_nonexistent_server_id(self):
        # force-delete a non existent server
        nonexistent_server = data_utils.rand_uuid()
        self.assertRaises(exceptions.NotFound,
                          self.client.force_delete_server,
                          nonexistent_server)

    @test.attr(type=['negative', 'gate'])
    def test_force_delete_server_invalid_state(self):
        # we can only force-delete a server in 'soft-delete' state
        self.assertRaises(exceptions.Conflict,
                          self.client.force_delete_server,
                          self.server_id)

    @test.attr(type=['negative', 'gate'])
    def test_restore_nonexistent_server_id(self):
        # restore-delete a non existent server
        nonexistent_server = data_utils.rand_uuid()
        self.assertRaises(exceptions.NotFound,
                          self.client.restore_soft_deleted_server,
                          nonexistent_server)

    @test.attr(type=['negative', 'gate'])
    def test_restore_server_invalid_state(self):
        # we can only restore-delete a server in 'soft-delete' state
        self.assertRaises(exceptions.Conflict,
                          self.client.restore_soft_deleted_server,
                          self.server_id)

    @test.attr(type=['negative', 'gate'])
    def test_shelve_non_existent_server(self):
        # shelve a non existent server
        nonexistent_server = data_utils.rand_uuid()
        self.assertRaises(exceptions.NotFound, self.client.shelve_server,
                          nonexistent_server)

    @test.attr(type=['negative', 'gate'])
    def test_shelve_shelved_server(self):
        # shelve a shelved server.
        resp, server = self.client.shelve_server(self.server_id)
        self.assertEqual(202, resp.status)

        offload_time = CONF.compute.shelved_offload_time
        if offload_time >= 0:
            self.client.wait_for_server_status(self.server_id,
                                               'SHELVED_OFFLOADED',
                                               extra_timeout=offload_time)
        else:
            self.client.wait_for_server_status(self.server_id,
                                               'SHELVED')

        resp, server = self.client.get_server(self.server_id)
        image_name = server['name'] + '-shelved'
        resp, images = self.images_client.image_list(name=image_name)
        self.assertEqual(1, len(images))
        self.assertEqual(image_name, images[0]['name'])

        self.assertRaises(exceptions.Conflict,
                          self.client.shelve_server,
                          self.server_id)

        self.client.unshelve_server(self.server_id)

    @test.attr(type=['negative', 'gate'])
    def test_unshelve_non_existent_server(self):
        # unshelve a non existent server
        nonexistent_server = data_utils.rand_uuid()
        self.assertRaises(exceptions.NotFound, self.client.unshelve_server,
                          nonexistent_server)

    @test.attr(type=['negative', 'gate'])
    def test_unshelve_server_invalid_state(self):
        # unshelve an active server.
        self.assertRaises(exceptions.Conflict,
                          self.client.unshelve_server,
                          self.server_id)
