# Copyright 2015 Red Hat, Inc.
# 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 hashlib
import inspect

from ironic.common import exception
from ironic.objects import fields
from ironic.tests import base as test_base


class TestMacAddressField(test_base.TestCase):

    def setUp(self):
        super(TestMacAddressField, self).setUp()
        self.field = fields.MACAddressField()

    def test_coerce(self):
        values = {'aa:bb:cc:dd:ee:ff': 'aa:bb:cc:dd:ee:ff',
                  'AA:BB:CC:DD:EE:FF': 'aa:bb:cc:dd:ee:ff',
                  'AA:bb:cc:11:22:33': 'aa:bb:cc:11:22:33'}
        for k in values:
            self.assertEqual(values[k], self.field.coerce('obj', 'attr', k))

    def test_coerce_bad_values(self):
        for v in ('invalid-mac', 'aa-bb-cc-dd-ee-ff'):
            self.assertRaises(exception.InvalidMAC,
                              self.field.coerce, 'obj', 'attr', v)


class TestFlexibleDictField(test_base.TestCase):

    def setUp(self):
        super(TestFlexibleDictField, self).setUp()
        self.field = fields.FlexibleDictField()

    def test_coerce(self):
        d = {'foo_1': 'bar', 'foo_2': 2, 'foo_3': [], 'foo_4': {}}
        self.assertEqual(d, self.field.coerce('obj', 'attr', d))
        self.assertEqual({'foo': 'bar'},
                         self.field.coerce('obj', 'attr', '{"foo": "bar"}'))

    def test_coerce_bad_values(self):
        self.assertRaises(TypeError, self.field.coerce, 'obj', 'attr', 123)
        self.assertRaises(TypeError, self.field.coerce, 'obj', 'attr', True)

    def test_coerce_nullable_translation(self):
        # non-nullable
        self.assertRaises(ValueError, self.field.coerce, 'obj', 'attr', None)

        # nullable
        self.field = fields.FlexibleDictField(nullable=True)
        self.assertEqual({}, self.field.coerce('obj', 'attr', None))


class TestStringFieldThatAcceptsCallable(test_base.TestCase):

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

        def test_default_function():
            return "default value"

        self.test_default_function_hash = hashlib.md5(
            inspect.getsource(test_default_function).encode()).hexdigest()
        self.field = fields.StringFieldThatAcceptsCallable(
            default=test_default_function)

    def test_coerce_string(self):
        self.assertEqual("value", self.field.coerce('obj', 'attr', "value"))

    def test_coerce_function(self):
        def test_function():
            return "value"
        self.assertEqual("value",
                         self.field.coerce('obj', 'attr', test_function))

    def test_coerce_invalid_type(self):
        self.assertRaises(ValueError, self.field.coerce,
                          'obj', 'attr', ('invalid', 'tuple'))

    def test_coerce_function_invalid_type(self):
        def test_function():
            return ('invalid', 'tuple',)
        self.assertRaises(ValueError,
                          self.field.coerce, 'obj', 'attr', test_function)

    def test_coerce_default_as_function(self):
        self.assertEqual("default value",
                         self.field.coerce('obj', 'attr', None))

    def test__repr__includes_default_function_name_and_source_hash(self):
        expected = ('StringAcceptsCallable(default=test_default_function-%s,'
                    'nullable=False)' % self.test_default_function_hash)
        self.assertEqual(expected, repr(self.field))


class TestNotificationLevelField(test_base.TestCase):

    def setUp(self):
        super(TestNotificationLevelField, self).setUp()
        self.field = fields.NotificationLevelField()

    def test_coerce_good_value(self):
        self.assertEqual(fields.NotificationLevel.WARNING,
                         self.field.coerce('obj', 'attr', 'warning'))

    def test_coerce_bad_value(self):
        self.assertRaises(ValueError, self.field.coerce, 'obj', 'attr',
                          'not_a_priority')


class TestNotificationStatusField(test_base.TestCase):

    def setUp(self):
        super(TestNotificationStatusField, self).setUp()
        self.field = fields.NotificationStatusField()

    def test_coerce_good_value(self):
        self.assertEqual(fields.NotificationStatus.START,
                         self.field.coerce('obj', 'attr', 'start'))

    def test_coerce_bad_value(self):
        self.assertRaises(ValueError, self.field.coerce, 'obj', 'attr',
                          'not_a_priority')