# -*- coding: utf-8 -*-
# Code for Life
#
# Copyright (C) 2015, Ocado Limited
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# ADDITIONAL TERMS – Section 7 GNU General Public Licence
#
# This licence does not grant any right, title or interest in any “Ocado” logos,
# trade names or the trademark “Ocado” or any other trademarks or domain names
# owned by Ocado Innovation Limited or the Ocado group of companies or any other
# distinctive brand features of “Ocado” as may be secured from time to time. You
# must not distribute any modification of this program using the trademark
# “Ocado” or claim any affiliation or association with Ocado or its employees.
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# the names of any author or contributor in advertising or for publicity purposes
# pertaining to the distribution of this program, without the prior written
# authorisation of Ocado.
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# Any propagation, distribution or conveyance of this program must include this
# copyright notice and these terms. You must not misrepresent the origins of this
# program; modified versions of the program must be marked as such and not
# identified as the original program.
from django.core.urlresolvers import reverse

from rest_framework import status
from rest_framework.test import APITestCase

from hamcrest import *
from hamcrest.core.base_matcher import BaseMatcher

from game.models import Decor


class APITests(APITestCase):
    def test_list_decors(self):
        url = reverse('decor-list')
        response = self.client.get(url)
        assert_that(response, has_status_code(status.HTTP_200_OK))
        assert_that(response.data, has_length(len(Decor.objects.all())))

    def test_known_decor_detail(self):
        decor_id = 1
        url = reverse('decor-detail', kwargs={'pk': decor_id})
        response = self.client.get(url)
        assert_that(response, has_status_code(status.HTTP_200_OK))
        assert_that(response.data['id'], equal_to(decor_id))

    def test_unknown_decor_detail(self):
        decor_id = 0
        url = reverse('decor-detail', kwargs={'pk': decor_id})
        response = self.client.get(url)
        assert_that(response, has_status_code(status.HTTP_404_NOT_FOUND))

    def test_levels_for_known_episode(self):
        episode_id = 1
        url = reverse('level-for-episode', kwargs={'pk': episode_id})
        response = self.client.get(url)
        assert_that(response, has_status_code(status.HTTP_200_OK))
        assert_that(response.data, has_length(greater_than(0)))

    def test_levels_for_unknown_episode(self):
        episode_id = 0
        url = reverse('level-for-episode', kwargs={'pk': episode_id})
        response = self.client.get(url)
        assert_that(response, has_status_code(status.HTTP_200_OK))
        assert_that(response.data, has_length(0))


def has_status_code(status_code):
    return HasStatusCode(status_code)


class HasStatusCode(BaseMatcher):
    def __init__(self, status_code):
        self.status_code = status_code

    def _matches(self, response):
        return response.status_code == self.status_code

    def describe_to(self, description):
        description.append_text('has status code ').append_text(self.status_code)

    def describe_mismatch(self, response, mismatch_description):
        mismatch_description.append_text('had status code ').append_text(response.status_code)

Add example tests for REST API