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"""Tests for correct behavior of Rasterio's GDALEnv in concurrent programs"""
from concurrent.futures import ProcessPoolExecutor
import rasterio
def get_data(path):
"""Return all raster bands as an ndarray"""
with rasterio.open(path, sharing=False) as src:
return src.read()
def test_mp_main_env():
"""Get raster data using ProcessPoolExecutor with main thread Env"""
with rasterio.Env(), ProcessPoolExecutor() as pool:
for res in pool.map(get_data, ['tests/data/RGB.byte.tif'] * 10):
assert res.any()
def test_mp_no_main_env():
"""Get raster data using ProcessPoolExecutor with main thread Env"""
with ProcessPoolExecutor() as pool:
for res in pool.map(get_data, ['tests/data/RGB.byte.tif'] * 10):
assert res.any()
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