mapnik/tests/python_tests/ogr_test.py
2011-12-05 13:32:37 -08:00

51 lines
1.7 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
from nose.tools import *
from utilities import execution_path
import os, mapnik
def setup():
# All of the paths used are relative, if we run the tests
# from another directory we need to chdir()
os.chdir(execution_path('.'))
if 'ogr' in mapnik.DatasourceCache.instance().plugin_names():
# Shapefile initialization
def test_shapefile_init():
s = mapnik.Ogr(file='../../demo/data/boundaries.shp',layer_by_index=0)
e = s.envelope()
assert_almost_equal(e.minx, -11121.6896651, places=7)
assert_almost_equal(e.miny, -724724.216526, places=6)
assert_almost_equal(e.maxx, 2463000.67866, places=5)
assert_almost_equal(e.maxy, 1649661.267, places=3)
# Shapefile properties
def test_shapefile_properties():
s = mapnik.Ogr(file='../../demo/data/boundaries.shp',layer_by_index=0,encoding='latin1')
f = s.features_at_point(s.envelope().center()).features[0]
eq_(f['CGNS_FID'], u'6f733341ba2011d892e2080020a0f4c9')
eq_(f['COUNTRY'], u'CAN')
eq_(f['F_CODE'], u'FA001')
eq_(f['NAME_EN'], u'Quebec')
# this seems to break if icu data linking is not working
eq_(f['NOM_FR'], u'Qu\xe9bec')
eq_(f['NOM_FR'], u'Québec')
eq_(f['Shape_Area'], 1512185733150.0)
eq_(f['Shape_Leng'], 19218883.724300001)
# Check that the deprecated interface still works,
# remove me once the deprecated code is cleaned up
eq_(f.properties['Shape_Leng'], 19218883.724300001)
if __name__ == "__main__":
setup()
[eval(run)() for run in dir() if 'test_' in run]