import pytest
from shapely.geometry import MultiLineString, Point, Polygon, shape
from shapely.geometry.geo import _is_coordinates_empty
@pytest.mark.parametrize(
"geom",
[{"type": "Polygon", "coordinates": None}, {"type": "Polygon", "coordinates": []}],
)
def test_polygon_no_coords(geom):
assert shape(geom) == Polygon()
def test_polygon_empty_np_array():
np = pytest.importorskip("numpy")
geom = {"type": "Polygon", "coordinates": np.array([])}
assert shape(geom) == Polygon()
def test_polygon_with_coords_list():
geom = {"type": "Polygon", "coordinates": [[[5, 10], [10, 10], [10, 5]]]}
obj = shape(geom)
assert obj == Polygon([(5, 10), (10, 10), (10, 5)])
def test_polygon_not_empty_np_array():
np = pytest.importorskip("numpy")
geom = {"type": "Polygon", "coordinates": np.array([[[5, 10], [10, 10], [10, 5]]])}
obj = shape(geom)
assert obj == Polygon([(5, 10), (10, 10), (10, 5)])
@pytest.mark.parametrize(
"geom",
[
{"type": "MultiLineString", "coordinates": []},
{"type": "MultiLineString", "coordinates": [[]]},
{"type": "MultiLineString", "coordinates": None},
],
)
def test_multilinestring_empty(geom):
assert shape(geom) == MultiLineString()
@pytest.mark.parametrize("coords", [[], [[]], [[], []], None, [[[]]]])
def test_is_coordinates_empty(coords):
assert _is_coordinates_empty(coords)
def test_feature_from_geo_interface():
# https://github.com/shapely/shapely/issues/1814
class Feature:
@property
def __geo_interface__(self):
return {
"type": "Feature",
"geometry": {"type": "Point", "coordinates": [0, 0]},
}
expected = Point([0, 0])
result = shape(Feature())
assert result == expected