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"""Tests for correct behavior of Rasterio's GDALEnv in concurrent programs"""
from concurrent.futures import ThreadPoolExecutor
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_threads_main_env():
"""Get raster data using ThreadPoolExecutor with main thread Env"""
with rasterio.Env(), ThreadPoolExecutor(4) as pool:
for res in pool.map(get_data, ['tests/data/RGB.byte.tif'] * 10):
assert res.any()
def test_threads_no_main_env():
"""Get raster data using ThreadPoolExecutor with no main thread Env"""
with ThreadPoolExecutor(4) as pool:
for res in pool.map(get_data, ['tests/data/RGB.byte.tif'] * 10):
assert res.any()
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