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import os
import mapnik
import pytest
from .utilities import execution_path
@pytest.fixture(scope="module")
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('.'))
yield
if 'geojson' in mapnik.DatasourceCache.plugin_names():
def test_geojson_init(setup):
if not os.path.exists('../data/json/escaped.geojson'):
pytest.skip('Missing data')
ds = mapnik.Datasource(
type='geojson',
file='../data/json/escaped.geojson')
e = ds.envelope()
assert e.minx == pytest.approx(-81.705583, abs=1e-7)
assert e.miny == pytest.approx(41.480573, abs=1e-6)
assert e.maxx == pytest.approx(-81.705583, abs=1e-5)
assert e.maxy == pytest.approx(41.480573, abs=1e-3)
def test_geojson_properties():
if not os.path.exists('../data/json/escaped.geojson'):
pytest.skip('Missing data')
ds = mapnik.Datasource(
type='geojson',
file='../data/json/escaped.geojson')
f = list(ds.features_at_point(ds.envelope().center()))[0]
assert len(ds.fields()) == 11
desc = ds.describe()
assert desc['geometry_type'] == mapnik.DataGeometryType.Point
assert f['name'] == u'Test'
assert f['int'] == 1
assert f['description'] == u'Test: \u005C'
assert f['spaces'] == u'this has spaces'
assert f['double'] == 1.1
assert f['boolean'] == True
assert f['NOM_FR'] == u'Qu\xe9bec'
assert f['NOM_FR'] == u'Québec'
ds = mapnik.Datasource(
type='geojson',
file='../data/json/escaped.geojson')
f = list(ds.all_features())[0]
assert len(ds.fields()) == 11
desc = ds.describe()
assert desc['geometry_type'] == mapnik.DataGeometryType.Point
assert f['name'] == u'Test'
assert f['int'] == 1
assert f['description'] == u'Test: \u005C'
assert f['spaces'] == u'this has spaces'
assert f['double'] == 1.1
assert f['boolean'] == True
assert f['NOM_FR'] == u'Qu\xe9bec'
assert f['NOM_FR'] == u'Québec'
def test_large_geojson_properties():
if not os.path.exists('../data/json/escaped.geojson'):
pytest.skip('Missing data')
ds = mapnik.Datasource(
type='geojson',
file='../data/json/escaped.geojson',
cache_features=False)
f = list(ds.features_at_point(ds.envelope().center()))[0]
assert len(ds.fields()) == 11
desc = ds.describe()
assert desc['geometry_type'] == mapnik.DataGeometryType.Point
assert f['name'] == u'Test'
assert f['int'] == 1
assert f['description'] == u'Test: \u005C'
assert f['spaces'] == u'this has spaces'
assert f['double'] == 1.1
assert f['boolean'] == True
assert f['NOM_FR'] == u'Qu\xe9bec'
assert f['NOM_FR'] == u'Québec'
ds = mapnik.Datasource(
type='geojson',
file='../data/json/escaped.geojson')
f = list(ds.all_features())[0]
assert len(ds.fields()) == 11
desc = ds.describe()
assert desc['geometry_type'] == mapnik.DataGeometryType.Point
assert f['name'] == u'Test'
assert f['int'] == 1
assert f['description'] == u'Test: \u005C'
assert f['spaces'] == u'this has spaces'
assert f['double'] == 1.1
assert f['boolean'] == True
assert f['NOM_FR'] == u'Qu\xe9bec'
assert 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]] } } ]}')
assert len(ds.fields()) == 1
f = list(ds.all_features())[0]
desc = ds.describe()
assert desc['geometry_type'] == mapnik.DataGeometryType.LineString
assert f['name'] == u'test'
# @raises(RuntimeError)
def test_that_nonexistant_query_field_throws(**kwargs):
if not os.path.exists('../data/json/escaped.geojson'):
pytest.skip('Missing data')
ds = mapnik.Datasource(
type='geojson',
file='../data/json/escaped.geojson')
assert len(ds.fields()) == 11
# TODO - this sorting is messed up
#assert ds.fields(),['name', 'int', 'double', 'description', 'boolean' == 'NOM_FR']
#assert 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'):
pytest.skip('Missing data')
ds = mapnik.Datasource(
type='geojson',
file='../data/json/feature_collection_level_properties.json')
f = list(ds.all_features())[0]
desc = ds.describe()
assert desc['geometry_type'] == mapnik.DataGeometryType.Point
assert f['feat_name'] == u'feat_value'
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