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import json
import os.path
import tempfile
import pytest
import fiona
from fiona import prop_type, prop_width
from fiona.model import Feature
from .conftest import gdal_version
def test_width_str():
assert prop_width("str:254") == 254
assert prop_width("str") == 80
def test_width_other():
assert prop_width("int") == None
assert prop_width("float") == None
assert prop_width("date") == None
def test_types():
assert prop_type("str:254") == str
assert prop_type("str") == str
assert isinstance(0, prop_type("int"))
assert isinstance(0.0, prop_type("float"))
assert prop_type("date") == str
@pytest.mark.xfail(not gdal_version.at_least("3.5"), reason="Requires at least GDAL 3.5.0")
def test_read_json_object_properties():
"""JSON object properties are properly serialized"""
data = """
{
"type": "FeatureCollection",
"features": [
{
"geometry": {
"type": "Polygon",
"coordinates": [
[
[
87.33588,
43.53139
],
[
87.33588,
45.66894
],
[
90.27542,
45.66894
],
[
90.27542,
43.53139
],
[
87.33588,
43.53139
]
]
]
},
"type": "Feature",
"properties": {
"upperLeftCoordinate": {
"latitude": 45.66894,
"longitude": 87.91166
},
"tricky": "{gotcha"
}
}
]
}
"""
tmpdir = tempfile.mkdtemp()
filename = os.path.join(tmpdir, "test.json")
with open(filename, "w") as f:
f.write(data)
with fiona.open(filename) as src:
ftr = next(iter(src))
props = ftr["properties"]
assert props["upperLeftCoordinate"]["latitude"] == 45.66894
assert props["upperLeftCoordinate"]["longitude"] == 87.91166
assert props["tricky"] == "{gotcha"
@pytest.mark.xfail(not gdal_version.at_least("3.5"), reason="Requires at least GDAL 3.5.0")
def test_write_json_object_properties():
"""Python object properties are properly serialized"""
data = """
{
"type": "FeatureCollection",
"features": [
{
"geometry": {
"type": "Polygon",
"coordinates": [
[
[
87.33588,
43.53139
],
[
87.33588,
45.66894
],
[
90.27542,
45.66894
],
[
90.27542,
43.53139
],
[
87.33588,
43.53139
]
]
]
},
"type": "Feature",
"properties": {
"upperLeftCoordinate": {
"latitude": 45.66894,
"longitude": 87.91166
},
"tricky": "{gotcha"
}
}
]
}
"""
data = Feature.from_dict(**json.loads(data)["features"][0])
tmpdir = tempfile.mkdtemp()
filename = os.path.join(tmpdir, "test.json")
with fiona.open(
filename,
"w",
driver="GeoJSON",
schema={
"geometry": "Polygon",
"properties": {"upperLeftCoordinate": "str", "tricky": "str"},
},
) as dst:
dst.write(data)
with fiona.open(filename) as src:
ftr = next(iter(src))
props = ftr["properties"]
assert props["upperLeftCoordinate"]["latitude"] == 45.66894
assert props["upperLeftCoordinate"]["longitude"] == 87.91166
assert props["tricky"] == "{gotcha"
def test_json_prop_decode_non_geojson_driver():
feature = Feature.from_dict(
**{
"type": "Feature",
"properties": {
"ulc": {"latitude": 45.66894, "longitude": 87.91166},
"tricky": "{gotcha",
},
"geometry": {"type": "Point", "coordinates": [10, 15]},
}
)
meta = {
"crs": "EPSG:4326",
"driver": "ESRI Shapefile",
"schema": {
"geometry": "Point",
"properties": {"ulc": "str:255", "tricky": "str:255"},
},
}
tmpdir = tempfile.mkdtemp()
filename = os.path.join(tmpdir, "test.json")
with fiona.open(filename, "w", **meta) as dst:
dst.write(feature)
with fiona.open(filename) as src:
actual = next(iter(src))
assert isinstance(actual["properties"]["ulc"], str)
a = json.loads(actual["properties"]["ulc"])
e = json.loads(actual["properties"]["ulc"])
assert e == a
assert actual["properties"]["tricky"].startswith("{")
|
