import os, unittest

from django.contrib.gis.db.backend import SpatialBackend

from django.contrib.gis.tests.utils import no_mysql, no_oracle, no_postgis, no_spatialite

from django.contrib.gis.shortcuts import render_to_kmz

from models import City

class GeoRegressionTests(unittest.TestCase):

    def test01_update(self):

        "Testing GeoQuerySet.update(), see #10411."

        pnt = City.objects.get(name='Pueblo').point

        bak = pnt.clone()

        pnt.y += 0.005

        pnt.x += 0.005

        City.objects.filter(name='Pueblo').update(point=pnt)

        self.assertEqual(pnt, City.objects.get(name='Pueblo').point)

        City.objects.filter(name='Pueblo').update(point=bak)

        self.assertEqual(bak, City.objects.get(name='Pueblo').point)

    def test02_kmz(self):

        "Testing `render_to_kmz` with non-ASCII data, see #11624."

        name = '\xc3\x85land Islands'.decode('iso-8859-1')

        places = [{'name' : name,

                  'description' : name,

                  'kml' : '<Point><coordinates>5.0,23.0</coordinates></Point>'

                  }]

        kmz = render_to_kmz('gis/kml/placemarks.kml', {'places' : places})

    @no_spatialite

    def test03_extent(self):

        "Testing `extent` on a table with a single point, see #11827."

        pnt = City.objects.get(name='Pueblo').point

        ref_ext = (pnt.x, pnt.y, pnt.x, pnt.y)

        self.assertEqual(ref_ext, City.objects.filter(name='Pueblo').extent())