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578a3c5bfc
* Take into account GDAL >= 3.7 GDT_Int8 signed int8 datatype (fixes #2635) (#2656) * ENH: Added int8 dtype to rasterize (#2780) --------- Co-authored-by: Even Rouault <even.rouault@spatialys.com> Co-authored-by: Alan D. Snow <alansnow21@gmail.com>
59 lines
1.5 KiB
Python
59 lines
1.5 KiB
Python
import affine
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import numpy
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import pytest
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import rasterio
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from rasterio.env import GDALVersion
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from .conftest import gdal_version
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@pytest.mark.xfail(gdal_version < GDALVersion(3, 7), reason="GDAL < 3.7 doesn't handle signed int8 correctly")
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@pytest.mark.parametrize("nodata", [-1, -128])
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def test_write_int8_mem(nodata):
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profile = {
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"driver": "GTiff",
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"width": 2,
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"height": 1,
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"count": 1,
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"dtype": "int8",
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"crs": "EPSG:3857",
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"transform": affine.Affine(10, 0, 0, 0, -10, 0),
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"nodata": nodata,
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}
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values = numpy.array([[nodata, nodata]], dtype="int8")
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with rasterio.open("/vsimem/test.tif", "w", **profile) as src:
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src.write(values, indexes=1)
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with rasterio.open("/vsimem/test.tif") as src:
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read = src.read(indexes=1)
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assert read[0][0] == nodata
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assert read[0][1] == nodata
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@pytest.mark.parametrize("nodata", [None, -1, -128])
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def test_write_int8_fs(tmp_path, nodata):
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filename = tmp_path.joinpath("test.tif")
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profile = {
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"driver": "GTiff",
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"width": 2,
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"height": 1,
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"count": 1,
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"dtype": "int8",
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"crs": "EPSG:3857",
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"transform": affine.Affine(10, 0, 0, 0, -10, 0),
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"nodata": nodata,
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}
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values = numpy.array([[127, -128]], dtype="int8")
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with rasterio.open(filename, "w", **profile) as src:
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src.write(values, indexes=1)
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with rasterio.open(filename) as src:
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read = src.read(indexes=1)
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assert read[0][0] == 127
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assert read[0][1] == -128
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