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"""test morecantile utils."""
import math
import pytest
from pyproj import CRS
from morecantile import utils
@pytest.mark.parametrize(
"crs,unit",
[
(CRS.from_epsg(4326), 2 * math.pi * 6378137 / 360.0),
(CRS.from_epsg(3857), 1.0),
(CRS.from_epsg(2276), 0.30480060960121924),
(CRS.from_epsg(2222), 0.3048),
# Mars in Meter
(
CRS.from_proj4(
"+proj=tmerc +lat_0=17 +lon_0=76.5 +k=0.9996 +x_0=0 +y_0=0 +a=3396190 +b=3376200 +units=m +no_defs"
),
1.0,
),
# Mars in Degrees
# proj4 from https://github.com/AndrewAnnex/planetcantile/blob/5ea2577f5dc4a3bc91b0443ef0633a5f89b15e03/planetcantile/data/generate.py#L45-L47
(
CRS.from_proj4("+proj=longlat +R=3396190 +no_defs +type=crs"),
2 * math.pi * 3396190 / 360.0,
),
],
)
def test_mpu(crs, unit):
"""test meters_per_unit."""
assert utils.meters_per_unit(crs) == unit
@pytest.mark.parametrize(
"lon1, lon2, contains", [(-180, 180, False), (179, -179, True)]
)
def test_lons_contain_antimeridian(lon1: float, lon2: float, contains: bool):
assert utils.lons_contain_antimeridian(lon1, lon2) == contains
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