def test_boundless_vrt_preserves_mask():
expected = GeoRaster2.open("tests/data/raster/overlap1.tif")
with rasterio.open(expected.source_file) as raster:
doc = boundless_vrt_doc(raster, bands=[1, 2]).tostring()
with TemporaryDirectory() as d:
file_name = os.path.join(d, 'vrt_file.vrt')
with open(file_name, 'wb') as f:
f.write(doc)
raster = GeoRaster2.open(file_name)
assert np.array_equal(raster.image.mask, expected.image.mask[:2, :, :])
def build_vrt(source_file, destination_file, **kwargs):
"""Make a VRT XML document and write it in file.
Parameters
----------
source_file : str, file object or pathlib.Path object
Source file.
destination_file : str
Destination file.
kwargs : optional
Additional arguments passed to rasterio.vrt._boundless_vrt_doc
Returns
-------
out : str
The path to the destination file.
"""
with rasterio.open(source_file) as src:
vrt_doc = boundless_vrt_doc(src, **kwargs).tostring()
with open(destination_file, 'wb') as dst:
dst.write(vrt_doc)
return destination_file
def test_boundless_vrt():
with rasterio.open("tests/data/raster/overlap2.tif") as raster:
doc = boundless_vrt_doc(raster).tostring()
with open("tests/data/raster/overlap2.vrt", 'rb') as expected_src:
expected = expected_src.read()
assert expected == doc
