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import mapnik
import pytest
import os
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 'topojson' in mapnik.DatasourceCache.plugin_names():
def test_topojson_init(setup):
if not os.path.exists('../data/topojson/escaped.topojson'):
pytest.skip('Missing data')
# topojson tests/data/json/escaped.geojson -o tests/data/topojson/escaped.topojson --properties
# topojson version 1.4.2
ds = mapnik.Datasource(
type='topojson',
file='../data/topojson/escaped.topojson')
e = ds.envelope()
assert e.minx == pytest.approx(-81.705583, 1e-7)
assert e.miny == pytest.approx( 41.480573, 1e-6)
assert e.maxx == pytest.approx(-81.705583, 1e-5)
assert e.maxy == pytest.approx(41.480573, 1e-3)
def test_topojson_properties():
if not os.path.exists('../data/topojson/escaped.topojson'):
pytest.skip('Missing data')
ds = mapnik.Datasource(
type='topojson',
file='../data/topojson/escaped.topojson')
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'
def test_geojson_from_in_memory_string():
if not os.path.exists('../data/topojson/escaped.topojson'):
pytest.skip('Missing data')
ds = mapnik.Datasource(
type='topojson',
inline=open(
'../data/topojson/escaped.topojson',
'r').read())
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'
#@raises(RuntimeError)
def test_that_nonexistant_query_field_throws(**kwargs):
if not os.path.exists('../data/topojson/escaped.topojson'):
pytest.skip('Missing data')
#with pytest.raises(RuntimeError):
ds = mapnik.Datasource(
type='topojson',
file='../data/topojson/escaped.topojson')
assert len(ds.fields()) == 11
# TODO - this sorting is messed up
assert ds.fields() == ['name', 'int', 'description',
'spaces', 'double', 'boolean', 'NOM_FR',
'object', 'array', 'empty_array', 'empty_object']
assert ds.field_types() == ['str', 'int',
'str', 'str', 'float', 'bool', 'str',
'str', 'str', 'str', 'str']
# TODO - should topojson 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)
#if __name__ == "__main__":
#setup()
# exit(run_all(eval(x) for x in dir() if x.startswith("test_")))
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