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#!/usr/bin/env python
from nose.tools import *
from utilities import execution_path, Todo
import os, sys, glob, mapnik2
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('.'))
def compare_shape_between_mapnik_and_ogr(shapefile,query=None):
ds1 = mapnik2.Ogr(file=shapefile,layer_by_index=0)
ds2 = mapnik2.Shapefile(file=shapefile)
if query:
fs1 = ds1.features(query)
fs2 = ds2.features(query)
else:
fs1 = ds1.featureset()
fs2 = ds2.featureset()
count = 0;
while(True):
count += 1
feat1 = fs1.next()
feat2 = fs2.next()
if not feat1:
break
#import pdb;pdb.set_trace()
eq_(feat1.id(),feat2.id(),
'%s : ogr feature id %s "%s" does not equal shapefile feature id %s "%s"'
% (count,feat1.id(),str(feat1.attributes), feat2.id(),str(feat2.attributes)) )
return True
def test_shapefile_line_featureset_id():
compare_shape_between_mapnik_and_ogr('../data/shp/polylines.shp')
def test_shapefile_polygon_featureset_id():
compare_shape_between_mapnik_and_ogr('../data/shp/poly.shp')
def test_shapefile_polygon_feature_query_id():
bbox = (15523428.2632, 4110477.6323, -11218494.8310, 7495720.7404)
query = mapnik2.Query(mapnik2.Box2d(*bbox))
ds = mapnik2.Ogr(file='../data/shp/world_merc.shp',layer_by_index=0)
for fld in ds.fields():
query.add_property_name(fld)
compare_shape_between_mapnik_and_ogr('../data/shp/world_merc.shp',query)
def test_feature_hit_count():
raise Todo("need to optimize multigeom bbox handling in shapeindex")
# results in different results between shp and ogr!
#bbox = (-14284551.8434, 2074195.1992, -7474929.8687, 8140237.7628)
bbox = (1113194.91,4512803.085,2226389.82,6739192.905)
query = mapnik2.Query(mapnik2.Box2d(*bbox))
ds1 = mapnik2.Ogr(file='../data/shp/world_merc.shp',layer_by_index=0)
for fld in ds1.fields():
query.add_property_name(fld)
ds2 = mapnik2.Shapefile(file='../data/shp/world_merc.shp')
count1 = len(ds1.features(query).features)
count2 = len(ds2.features(query).features)
eq_(count1,count2,"Feature count differs between OGR driver (%s features) and Shapefile Driver (%s features) when querying the same bbox" % (count1,count2))
if __name__ == "__main__":
setup()
[eval(run)() for run in dir() if 'test_' in run]
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