rasterio/tests/test_profile.py
2017-06-28 15:05:16 +02:00

147 lines
4.3 KiB
Python

import warnings
import pytest
import rasterio
from rasterio.errors import RasterioDeprecationWarning
from rasterio.profiles import Profile, DefaultGTiffProfile
from rasterio.profiles import default_gtiff_profile
def test_base_profile():
assert 'driver' not in Profile()
def test_base_profile_kwarg():
assert Profile(foo='bar')['foo'] == 'bar'
def test_gtiff_profile_format():
assert DefaultGTiffProfile()['driver'] == 'GTiff'
with pytest.warns(RasterioDeprecationWarning):
assert DefaultGTiffProfile()()['driver'] == 'GTiff'
def test_gtiff_profile_interleave():
assert DefaultGTiffProfile()['interleave'] == 'band'
def test_gtiff_profile_tiled():
assert DefaultGTiffProfile()['tiled'] is True
def test_gtiff_profile_blockxsize():
assert DefaultGTiffProfile()['blockxsize'] == 256
def test_gtiff_profile_blockysize():
assert DefaultGTiffProfile()['blockysize'] == 256
def test_gtiff_profile_compress():
assert DefaultGTiffProfile()['compress'] == 'lzw'
def test_gtiff_profile_nodata():
assert DefaultGTiffProfile()['nodata'] == 0
def test_gtiff_profile_dtype():
assert DefaultGTiffProfile()['dtype'] == rasterio.uint8
def test_gtiff_profile_other():
assert DefaultGTiffProfile(count=3)['count'] == 3
def test_gtiff_profile_dtype_override():
assert DefaultGTiffProfile(dtype='uint16')['dtype'] == rasterio.uint16
def test_open_with_profile(tmpdir):
tiffname = str(tmpdir.join('foo.tif'))
with rasterio.open(tiffname, 'w', **default_gtiff_profile(
count=1, width=256, height=256)) as dst:
assert not dst.closed
def test_blockxsize_guard(tmpdir):
"""blockxsize can't be greater than image width."""
tiffname = str(tmpdir.join('foo.tif'))
with pytest.raises(ValueError):
rasterio.open(tiffname, 'w', **default_gtiff_profile(
count=1, width=128, height=256))
def test_blockysize_guard(tmpdir):
"""blockysize can't be greater than image height."""
tiffname = str(tmpdir.join('foo.tif'))
with pytest.raises(ValueError):
rasterio.open(tiffname, 'w', **default_gtiff_profile(
count=1, width=256, height=128))
def test_profile_overlay():
with rasterio.open('tests/data/RGB.byte.tif') as src:
kwds = src.profile
kwds.update(**default_gtiff_profile())
assert kwds['tiled']
assert kwds['compress'] == 'lzw'
assert kwds['count'] == 3
def test_dataset_profile_property_tiled(data):
"""An tiled dataset's profile has block sizes"""
with rasterio.open('tests/data/shade.tif') as src:
assert src.profile['blockxsize'] == 256
assert src.profile['blockysize'] == 256
assert src.profile['tiled'] is True
def test_dataset_profile_property_untiled(data):
"""An untiled dataset's profile has no block sizes"""
with rasterio.open('tests/data/RGB.byte.tif') as src:
assert 'blockxsize' not in src.profile
assert 'blockysize' not in src.profile
assert src.profile['tiled'] is False
def test_dataset_profile_creation_kwds(data):
"""Updated creation keyword tags appear in profile"""
tiffile = str(data.join('RGB.byte.tif'))
with rasterio.open(tiffile, 'r+') as src:
src.update_tags(ns='rio_creation_kwds', foo='bar')
assert src.profile['tiled'] is False
assert src.profile['foo'] == 'bar'
def test_profile_affine_stashing():
"""Passing affine sets transform, with a warning"""
with pytest.warns(RasterioDeprecationWarning):
profile = Profile(affine='foo')
assert 'affine' not in profile
assert profile['transform'] == 'foo'
def test_profile_mixed_error():
"""Warn if both affine and transform are passed"""
with pytest.warns(RasterioDeprecationWarning):
profile = Profile(affine='foo', transform='bar')
assert 'affine' not in profile
assert profile['transform'] == 'bar'
def test_profile_affine_alias():
"""affine is an alias for transform, with a warning"""
profile = Profile(transform='foo')
with pytest.warns(RasterioDeprecationWarning):
assert profile['affine'] == 'foo'
def test_profile_affine_set():
"""TypeError is raised on set of affine item"""
profile = Profile()
profile['transform'] = 'foo'
with pytest.raises(TypeError):
profile['affine'] = 'bar'