mapnik/tests/python_tests/memory_datasource_test.py

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#encoding: utf8
2012-01-24 08:27:44 +00:00
import mapnik
from nose.tools import *
def test_add_feature():
md = mapnik.MemoryDatasource()
eq_(md.num_features(), 0)
context = mapnik.Context()
context.push('foo')
feature = mapnik.Feature(context,1)
feature['foo'] = 'bar'
feature.add_geometries_from_wkt('POINT(2 3)')
md.add_feature(feature)
eq_(md.num_features(), 1)
featureset = md.features_at_point(mapnik.Coord(2,3))
retrieved = []
feat = featureset.next()
while featureset.next():
retrieved.append(feat)
eq_(len(retrieved), 1)
f = retrieved[0]
eq_(f['foo'], 'bar')
featureset = md.features_at_point(Coord(20,30)).features
retrieved = []
feat = featureset.next()
while featureset.next():
retrieved.append(feat)
eq_(len(retrieved), 0)
if __name__ == "__main__":
[eval(run)() for run in dir() if 'test_' in run]