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"""Test of deprecations following RFC 1"""
import pytest
from fiona.errors import FionaDeprecationWarning
from fiona.model import (
_Geometry,
Feature,
Geometry,
Object,
ObjectEncoder,
Properties,
decode_object,
)
def test_object_len():
"""object len is correct"""
obj = Object(g=1)
assert len(obj) == 1
def test_object_iter():
"""object iter is correct"""
obj = Object(g=1)
assert [obj[k] for k in obj] == [1]
def test_object_setitem_warning():
"""Warn about __setitem__"""
obj = Object()
with pytest.warns(FionaDeprecationWarning, match="immutable"):
obj["g"] = 1
assert "g" in obj
assert obj["g"] == 1
def test_object_update_warning():
"""Warn about update"""
obj = Object()
with pytest.warns(FionaDeprecationWarning, match="immutable"):
obj.update(g=1)
assert "g" in obj
assert obj["g"] == 1
def test_object_popitem_warning():
"""Warn about pop"""
obj = Object(g=1)
with pytest.warns(FionaDeprecationWarning, match="immutable"):
assert obj.pop("g") == 1
assert "g" not in obj
def test_object_delitem_warning():
"""Warn about __delitem__"""
obj = Object(g=1)
with pytest.warns(FionaDeprecationWarning, match="immutable"):
del obj["g"]
assert "g" not in obj
def test_object_setitem_delegated():
"""Delegation in __setitem__ works"""
class ThingDelegate:
def __init__(self, value):
self.value = value
class Thing(Object):
_delegated_properties = ["value"]
def __init__(self, value=None, **data):
self._delegate = ThingDelegate(value)
super().__init__(**data)
thing = Thing()
assert thing["value"] is None
with pytest.warns(FionaDeprecationWarning, match="immutable"):
thing["value"] = 1
assert thing["value"] == 1
def test_object_delitem_delegated():
"""Delegation in __delitem__ works"""
class ThingDelegate:
def __init__(self, value):
self.value = value
class Thing(Object):
_delegated_properties = ["value"]
def __init__(self, value=None, **data):
self._delegate = ThingDelegate(value)
super().__init__(**data)
thing = Thing(1)
assert thing["value"] == 1
with pytest.warns(FionaDeprecationWarning, match="immutable"):
del thing["value"]
assert thing["value"] is None
def test__geometry_ctor():
"""Construction of a _Geometry works"""
geom = _Geometry(type="Point", coordinates=(0, 0))
assert geom.type == "Point"
assert geom.coordinates == (0, 0)
def test_geometry_type():
"""Geometry has a type"""
geom = Geometry(type="Point")
assert geom.type == "Point"
def test_geometry_coordinates():
"""Geometry has coordinates"""
geom = Geometry(coordinates=[(0, 0), (1, 1)])
assert geom.coordinates == [(0, 0), (1, 1)]
def test_geometry__props():
"""Geometry properties as a dict"""
assert Geometry(coordinates=(0, 0), type="Point")._props() == {
"coordinates": (0, 0),
"type": "Point",
"geometries": None,
}
def test_geometry_gi():
"""Geometry __geo_interface__"""
gi = Geometry(coordinates=(0, 0), type="Point", geometries=[]).__geo_interface__
assert gi["type"] == "Point"
assert gi["coordinates"] == (0, 0)
def test_feature_no_geometry():
"""Feature has no attribute"""
feat = Feature()
assert feat.geometry is None
def test_feature_geometry():
"""Feature has a geometry attribute"""
geom = Geometry(type="Point")
feat = Feature(geometry=geom)
assert feat.geometry is geom
def test_feature_no_id():
"""Feature has no id"""
feat = Feature()
assert feat.id is None
def test_feature_id():
"""Feature has an id"""
feat = Feature(id="123")
assert feat.id == "123"
def test_feature_no_properties():
"""Feature has no properties"""
feat = Feature()
assert len(feat.properties) == 0
def test_feature_properties():
"""Feature has properties"""
feat = Feature(properties=Properties(foo=1))
assert len(feat.properties) == 1
assert feat.properties["foo"] == 1
def test_feature_from_dict_kwargs():
"""Feature can be created from GeoJSON kwargs"""
data = {
"id": "foo",
"type": "Feature",
"geometry": {"type": "Point", "coordinates": (0, 0)},
"properties": {"a": 0, "b": "bar"},
"extras": {"this": 1},
}
feat = Feature.from_dict(**data)
assert feat.id == "foo"
assert feat.type == "Feature"
assert feat.geometry.type == "Point"
assert feat.geometry.coordinates == (0, 0)
assert len(feat.properties) == 2
assert feat.properties["a"] == 0
assert feat.properties["b"] == "bar"
assert feat["extras"]["this"] == 1
def test_feature_from_dict_obj():
"""Feature can be created from GeoJSON obj"""
data = {
"id": "foo",
"type": "Feature",
"geometry": {"type": "Point", "coordinates": (0, 0)},
"properties": {"a": 0, "b": "bar"},
"extras": {"this": 1},
}
feat = Feature.from_dict(data)
assert feat.id == "foo"
assert feat.type == "Feature"
assert feat.geometry.type == "Point"
assert feat.geometry.coordinates == (0, 0)
assert len(feat.properties) == 2
assert feat.properties["a"] == 0
assert feat.properties["b"] == "bar"
assert feat["extras"]["this"] == 1
def test_feature_from_dict_kwargs_2():
"""From GeoJSON kwargs using Geometry and Properties"""
data = {
"id": "foo",
"type": "Feature",
"geometry": Geometry(type="Point", coordinates=(0, 0)),
"properties": Properties(a=0, b="bar"),
"extras": {"this": 1},
}
feat = Feature.from_dict(**data)
assert feat.id == "foo"
assert feat.type == "Feature"
assert feat.geometry.type == "Point"
assert feat.geometry.coordinates == (0, 0)
assert len(feat.properties) == 2
assert feat.properties["a"] == 0
assert feat.properties["b"] == "bar"
assert feat["extras"]["this"] == 1
def test_geometry_encode():
"""Can encode a geometry"""
assert ObjectEncoder().default(Geometry(type="Point", coordinates=(0, 0))) == {
"type": "Point",
"coordinates": (0, 0),
}
def test_feature_encode():
"""Can encode a feature"""
o_dict = ObjectEncoder().default(
Feature(
id="foo",
geometry=Geometry(type="Point", coordinates=(0, 0)),
properties=Properties(a=1, foo="bar", bytes=b"01234"),
)
)
assert o_dict["id"] == "foo"
assert o_dict["geometry"]["type"] == "Point"
assert o_dict["geometry"]["coordinates"] == (0, 0)
assert o_dict["properties"]["bytes"] == b'3031323334'
def test_decode_object_hook():
"""Can decode a feature"""
data = {
"id": "foo",
"type": "Feature",
"geometry": {"type": "Point", "coordinates": (0, 0)},
"properties": {"a": 0, "b": "bar"},
"extras": {"this": 1},
}
feat = decode_object(data)
assert feat.id == "foo"
assert feat.type == "Feature"
assert feat.geometry.type == "Point"
assert feat.geometry.coordinates == (0, 0)
assert len(feat.properties) == 2
assert feat.properties["a"] == 0
assert feat.properties["b"] == "bar"
assert feat["extras"]["this"] == 1
def test_decode_object_hook_geometry():
"""Can decode a geometry"""
data = {"type": "Point", "coordinates": (0, 0)}
geometry = decode_object(data)
assert geometry.type == "Point"
assert geometry.coordinates == (0, 0)
@pytest.mark.parametrize("o", [{}, {"a": 1}, {"type": "FeatureCollection"}])
def test_decode_object_hook_fallback(o):
"""Pass through an ordinary dict"""
assert decode_object(o) == o
def test_properties():
"""Property factory works"""
assert Properties.from_dict(a=1, foo="bar")["a"] == 1
def test_feature_gi():
"""Feature __geo_interface__."""
gi = Feature(
id="foo",
geometry=Geometry(type="Point", coordinates=(0, 0)),
properties=Properties(a=1, foo="bar"),
)
assert gi["id"] == "foo"
assert gi["geometry"]["type"] == "Point"
assert gi["geometry"]["coordinates"] == (0, 0)
def test_encode_bytes():
"""Bytes are encoded using base64."""
assert ObjectEncoder().default(b"01234") == b'3031323334'
def test_null_property_encoding():
"""A null feature property is retained."""
# Verifies fix for gh-1270.
assert ObjectEncoder().default(Properties(a=1, b=None)) == {"a": 1, "b": None}
def test_null_geometry_encoding():
"""A null feature geometry is retained."""
# Verifies fix for gh-1270.
o_dict = ObjectEncoder().default(Feature())
assert o_dict["geometry"] is None
def test_geometry_collection_encoding():
"""No coordinates in a GeometryCollection."""
assert "coordinates" not in ObjectEncoder().default(
Geometry(type="GeometryCollection", geometries=[])
)
def test_feature_repr():
feat = Feature(
id="1",
geometry=Geometry(type="LineString", coordinates=[(0, 0)] * 100),
properties=Properties(a=1, foo="bar"),
)
assert repr(feat) == "fiona.Feature(geometry=fiona.Geometry(coordinates=[(0, 0), ...], type='LineString'), id='1', properties=fiona.Properties(a=1, foo='bar'))"
def test_issue1430():
"""__getitem__() returns property, not disconnected dict."""
feat = Feature(properties=Properties())
with pytest.warns(FionaDeprecationWarning, match="immutable"):
feat["properties"]["foo"] = "bar"
assert feat["properties"]["foo"] == "bar"
assert feat.properties["foo"] == "bar"
|
