Testing some maps API's

test_maps.py

#/usr/bin/env python
# -*- encoding: utf-8 -*-

import unittest
import requests
import json

class Distance(object):

    def __init__(self):
        pass

    def __call__(self, begin, end):
        request_url = self.create_request_url(begin, end)
        result = requests.get(request_url)
        return self.get_distance_from_result(result)

    def create_request_url(self, begin, end):
        pass

    def get_distance_from_result(self, result):
        pass


class DistanceGoogleMaps(Distance):
    def create_request_url(self, begin, end):
        return  "http://maps.google.com/maps/api/directions/json?origin=%f,%f&destination=%f,%f&sensor=false" % (begin[0], begin[1], end[0], end[1])

    def get_distance_from_result(self, result):
        result_dict = json.loads(result.content)
        return result_dict['routes'][0]['legs'][0]['distance']['value']


class DistanceBingMaps(Distance):
    def __init__(self, api_key):
        self.api_key = api_key

    def create_request_url(self, begin, end):
        return "https://dev.virtualearth.net/REST/v1/Routes?wp.1=%f,%f&wp.2=%f,%f&optmz=distance&key=%s" \
                % (begin[0], begin[1], end[0], end[1], self.api_key )

    def get_distance_from_result(self, result):
        result_dict = json.loads(result.content)
        return int(
            1000*result_dict['resourceSets'][0]['resources'][0]['travelDistance']
            )


class DistanceCloudmade(Distance):
    def __init__(self, api_key):
        self.api_key=api_key

    def create_request_url(self, begin, end):
        return "http://navigation.cloudmade.com/%s/api/latest/%f,%f,%f,%f/car.js" \
                % (self.api_key, begin[0], begin[1], end[0], end[1])

    def get_distance_from_result(self, result):
        result_dict = json.loads(result.content)
        return result_dict['route_summary']['total_distance']


class TestMaps(unittest.TestCase):
    def setUp(self):
        #-7.13951890,-34.84447680,-7.13509410,-34.87438930
        self.begin = (-7.13951890, -34.84447680)
        self.end = (-7.13509410, -34.87438930)
        self.bing_key = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
        self.cloudmade_key = "YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY"

    def test_distance_btw_coords_google(self):
        distance = DistanceGoogleMaps()
        self.assertEqual(distance(self.begin, self.end), 5908)

    def test_distance_btw_coords_bing(self):
        distance = DistanceBingMaps(self.bing_key)
        self.assertEqual(distance(self.begin, self.end), 5691)

    def test_distance_btw_coords_cloudmade(self):
        distance = DistanceCloudmade(self.cloudmade_key)
        self.assertEqual(distance(self.begin, self.end), 5995)


if __name__ == '__main__':
    unittest.main()