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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import os
from nose.tools import assert_almost_equal, eq_
from nose.plugins.skip import SkipTest
import mapnik
from .utilities import execution_path, run_all
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 'geojson' in mapnik.DatasourceCache.plugin_names():
def test_geojson_init():
if not os.path.exists('../data/json/escaped.geojson'):
raise SkipTest
ds = mapnik.Datasource(
type='geojson',
file='../data/json/escaped.geojson')
e = ds.envelope()
assert_almost_equal(e.minx, -81.705583, places=7)
assert_almost_equal(e.miny, 41.480573, places=6)
assert_almost_equal(e.maxx, -81.705583, places=5)
assert_almost_equal(e.maxy, 41.480573, places=3)
def test_geojson_properties():
if not os.path.exists('../data/json/escaped.geojson'):
raise SkipTest
ds = mapnik.Datasource(
type='geojson',
file='../data/json/escaped.geojson')
f = list(ds.features_at_point(ds.envelope().center()))[0]
eq_(len(ds.fields()), 11)
desc = ds.describe()
eq_(desc['geometry_type'], mapnik.DataGeometryType.Point)
eq_(f['name'], u'Test')
eq_(f['int'], 1)
eq_(f['description'], u'Test: \u005C')
eq_(f['spaces'], u'this has spaces')
eq_(f['double'], 1.1)
eq_(f['boolean'], True)
eq_(f['NOM_FR'], u'Qu\xe9bec')
eq_(f['NOM_FR'], u'Québec')
ds = mapnik.Datasource(
type='geojson',
file='../data/json/escaped.geojson')
f = list(ds.all_features())[0]
eq_(len(ds.fields()), 11)
desc = ds.describe()
eq_(desc['geometry_type'], mapnik.DataGeometryType.Point)
eq_(f['name'], u'Test')
eq_(f['int'], 1)
eq_(f['description'], u'Test: \u005C')
eq_(f['spaces'], u'this has spaces')
eq_(f['double'], 1.1)
eq_(f['boolean'], True)
eq_(f['NOM_FR'], u'Qu\xe9bec')
eq_(f['NOM_FR'], u'Québec')
def test_large_geojson_properties():
if not os.path.exists('../data/json/escaped.geojson'):
raise SkipTest
ds = mapnik.Datasource(
type='geojson',
file='../data/json/escaped.geojson',
cache_features=False)
f = list(ds.features_at_point(ds.envelope().center()))[0]
eq_(len(ds.fields()), 11)
desc = ds.describe()
eq_(desc['geometry_type'], mapnik.DataGeometryType.Point)
eq_(f['name'], u'Test')
eq_(f['int'], 1)
eq_(f['description'], u'Test: \u005C')
eq_(f['spaces'], u'this has spaces')
eq_(f['double'], 1.1)
eq_(f['boolean'], True)
eq_(f['NOM_FR'], u'Qu\xe9bec')
eq_(f['NOM_FR'], u'Québec')
ds = mapnik.Datasource(
type='geojson',
file='../data/json/escaped.geojson')
f = list(ds.all_features())[0]
eq_(len(ds.fields()), 11)
desc = ds.describe()
eq_(desc['geometry_type'], mapnik.DataGeometryType.Point)
eq_(f['name'], u'Test')
eq_(f['int'], 1)
eq_(f['description'], u'Test: \u005C')
eq_(f['spaces'], u'this has spaces')
eq_(f['double'], 1.1)
eq_(f['boolean'], True)
eq_(f['NOM_FR'], u'Qu\xe9bec')
eq_(f['NOM_FR'], u'Québec')
def test_geojson_from_in_memory_string():
# will silently fail since it is a geometry and needs to be a featurecollection.
#ds = mapnik.Datasource(type='geojson',inline='{"type":"LineString","coordinates":[[0,0],[10,10]]}')
# works since it is a featurecollection
ds = mapnik.Datasource(
type='geojson',
inline='{ "type":"FeatureCollection", "features": [ { "type":"Feature", "properties":{"name":"test"}, "geometry": { "type":"LineString","coordinates":[[0,0],[10,10]] } } ]}')
eq_(len(ds.fields()), 1)
f = list(ds.all_features())[0]
desc = ds.describe()
eq_(desc['geometry_type'], mapnik.DataGeometryType.LineString)
eq_(f['name'], u'test')
# @raises(RuntimeError)
def test_that_nonexistant_query_field_throws(**kwargs):
if not os.path.exists('../data/json/escaped.geojson'):
raise SkipTest
ds = mapnik.Datasource(
type='geojson',
file='../data/json/escaped.geojson')
eq_(len(ds.fields()), 11)
# TODO - this sorting is messed up
#eq_(ds.fields(),['name', 'int', 'double', 'description', 'boolean', 'NOM_FR'])
#eq_(ds.field_types(),['str', 'int', 'float', 'str', 'bool', 'str'])
# TODO - should geojson plugin throw like others?
# query = mapnik.Query(ds.envelope())
# for fld in ds.fields():
# query.add_property_name(fld)
# # also add an invalid one, triggering throw
# query.add_property_name('bogus')
# fs = ds.features(query)
def test_parsing_feature_collection_with_top_level_properties():
if not os.path.exists('../data/json/feature_collection_level_properties.json'):
raise SkipTest
ds = mapnik.Datasource(
type='geojson',
file='../data/json/feature_collection_level_properties.json')
f = list(ds.all_features())[0]
desc = ds.describe()
eq_(desc['geometry_type'], mapnik.DataGeometryType.Point)
eq_(f['feat_name'], u'feat_value')
if __name__ == "__main__":
setup()
exit(run_all(eval(x) for x in dir() if x.startswith("test_")))
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