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5dbcc6f40f
Old syntax traded in for an easy to parse lisp-like syntax. No need for a temporary variable and much more secure.
122 lines
3.8 KiB
Python
122 lines
3.8 KiB
Python
import sys
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import logging
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from click.testing import CliRunner
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import rasterio
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from rasterio.rio.calc import calc
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logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
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def test_err(tmpdir):
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outfile = str(tmpdir.join('out.tif'))
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runner = CliRunner()
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result = runner.invoke(calc, [
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'(& 0.1 (ra 1))', 'tests/data/shade.tif', outfile],
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catch_exceptions=False)
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assert result.exit_code == 1
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def test_multiband_calc(tmpdir):
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outfile = str(tmpdir.join('out.tif'))
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runner = CliRunner()
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result = runner.invoke(calc, [
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'(+ 125 (* 0.1 (ra 1)))', 'tests/data/shade.tif', outfile],
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catch_exceptions=False)
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assert result.exit_code == 0
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with rasterio.open(outfile) as src:
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assert src.count == 1
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assert src.meta['dtype'] == 'float64'
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data = src.read()
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assert data.min() == 125
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def test_singleband_calc_byindex(tmpdir):
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outfile = str(tmpdir.join('out.tif'))
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runner = CliRunner()
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result = runner.invoke(calc, [
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'(+ 125 (* 0.1 (ra 1 1)))',
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'tests/data/shade.tif',
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outfile],
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catch_exceptions=False)
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assert result.exit_code == 0
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with rasterio.open(outfile) as src:
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assert src.count == 1
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assert src.meta['dtype'] == 'float64'
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data = src.read()
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assert data.min() == 125
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def test_singleband_calc_byname(tmpdir):
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outfile = str(tmpdir.join('out.tif'))
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runner = CliRunner()
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result = runner.invoke(calc, [
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'(+ 125 (* 0.1 (ra shade 1)))',
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'--name', 'shade=tests/data/shade.tif',
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outfile],
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catch_exceptions=False)
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assert result.exit_code == 0
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with rasterio.open(outfile) as src:
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assert src.count == 1
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assert src.meta['dtype'] == 'float64'
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data = src.read()
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assert data.min() == 125
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def test_parts_calc(tmpdir):
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# Producing an RGB output from the hill shade.
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# Red band has bumped up values. Other bands are unchanged.
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outfile = str(tmpdir.join('out.tif'))
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runner = CliRunner()
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result = runner.invoke(calc, [
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'(list (+ (ra 1 1) 125) (ra 1 1) (ra 1 1))',
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'--dtype', 'uint8',
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'tests/data/shade.tif',
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outfile],
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catch_exceptions=False)
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assert result.exit_code == 0
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with rasterio.open(outfile) as src:
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assert src.count == 3
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assert src.meta['dtype'] == 'uint8'
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data = src.read()
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assert data[0].min() == 125
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assert data[1].min() == 0
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assert data[2].min() == 0
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def test_parts_calc_2(tmpdir):
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# Produce greyscale output from the RGB file.
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outfile = str(tmpdir.join('out.tif'))
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runner = CliRunner()
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result = runner.invoke(calc, [
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'(+ (+ (/ (ra 1 1) 3) (/ (ra 1 2) 3)) (/ (ra 1 3) 3))',
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'--dtype', 'uint8',
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'tests/data/RGB.byte.tif',
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outfile],
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catch_exceptions=False)
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assert result.exit_code == 0
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with rasterio.open(outfile) as src:
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assert src.count == 1
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assert src.meta['dtype'] == 'uint8'
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data = src.read()
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assert round(data.mean(), 1) == 60.3
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def test_copy_rgb(tmpdir):
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outfile = str(tmpdir.join('out.tif'))
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runner = CliRunner()
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result = runner.invoke(calc, [
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'(ra 1)',
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'--dtype', 'uint8',
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'tests/data/RGB.byte.tif',
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outfile],
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catch_exceptions=False)
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assert result.exit_code == 0
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with rasterio.open(outfile) as src:
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assert src.count == 3
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assert src.meta['dtype'] == 'uint8'
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data = src.read()
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assert round(data.mean(), 1) == 60.6
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