# Copyright (c) 2017
#
# 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 testtools

from barbicanclient import formatter


class EntityFormatter(formatter.EntityFormatter):

    columns = ("Column A",
               "Column B",
               "Column C")

    def _get_formatted_data(self):
        data = (self._attr_a,
                self._attr_b,
                self._attr_c)
        return data


class Entity(EntityFormatter):

    def __init__(self, attr_a, attr_b, attr_c):
        self._attr_a = attr_a
        self._attr_b = attr_b
        self._attr_c = attr_c


class TestFormatter(testtools.TestCase):

    def test_should_get_list_objects(self):
        entity_1 = Entity('test_attr_a_1', 'test_attr_b_1', 'test_attr_c_1')
        entity_2 = Entity('test_attr_a_2', 'test_attr_b_2', 'test_attr_c_2')
        columns, data = EntityFormatter._list_objects([entity_1, entity_2])
        self.assertEqual(('Column A', 'Column B', 'Column C'), columns)
        self.assertEqual([('test_attr_a_1', 'test_attr_b_1', 'test_attr_c_1'),
                          ('test_attr_a_2', 'test_attr_b_2', 'test_attr_c_2')],
                         [e for e in data])

    def test_should_get_list_objects_empty(self):
        columns, data = EntityFormatter._list_objects([])
        self.assertEqual([], columns)
        self.assertEqual([], [e for e in data])

    def test_should_get_str(self):
        entity = Entity('test_attr_a_1', 'test_attr_b_1', 'test_attr_c_1')
        self.assertEqual('+----------+---------------+\n'
                         '| Field    | Value         |\n'
                         '+----------+---------------+\n'
                         '| Column A | test_attr_a_1 |\n'
                         '| Column B | test_attr_b_1 |\n'
                         '| Column C | test_attr_c_1 |\n'
                         '+----------+---------------+',
                         str(entity))

    def test_should_to_dict(self):
        entity = Entity('test_attr_a_1', 'test_attr_b_1', 'test_attr_c_1')
        self.assertEqual({'Column A': 'test_attr_a_1',
                          'Column B': 'test_attr_b_1',
                          'Column C': 'test_attr_c_1'},
                         entity.to_dict())