Source code for satpy.tests.compositor_tests.test_ahi

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (c) 2018 Satpy developers
#
# This file is part of satpy.
#
# satpy is free software: you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation, either version 3 of the License, or (at your option) any later
# version.
#
# satpy is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License along with
# satpy.  If not, see <http://www.gnu.org/licenses/>.
"""Tests for AHI compositors."""

import unittest


[docs]class TestAHIComposites(unittest.TestCase): """Test AHI-specific composites."""
[docs] def test_load_composite_yaml(self): """Test loading the yaml for this sensor.""" from satpy.composites.config_loader import load_compositor_configs_for_sensors load_compositor_configs_for_sensors(['ahi'])
[docs] def test_corrected_green(self): """Test adjusting the 'green' band.""" import dask.array as da import numpy as np import xarray as xr from pyresample.geometry import AreaDefinition from satpy.composites.ahi import GreenCorrector rows = 5 cols = 10 area = AreaDefinition( 'test', 'test', 'test', {'proj': 'eqc', 'lon_0': 0.0, 'lat_0': 0.0}, cols, rows, (-20037508.34, -10018754.17, 20037508.34, 10018754.17)) comp = GreenCorrector('green', prerequisites=(0.51, 0.85), standard_name='toa_bidirectional_reflectance') c01 = xr.DataArray(da.zeros((rows, cols), chunks=25) + 0.25, dims=('y', 'x'), attrs={'name': 'C01', 'area': area}) c02 = xr.DataArray(da.zeros((rows, cols), chunks=25) + 0.30, dims=('y', 'x'), attrs={'name': 'C02', 'area': area}) res = comp((c01, c02)) self.assertIsInstance(res, xr.DataArray) self.assertIsInstance(res.data, da.Array) self.assertEqual(res.attrs['name'], 'green') self.assertEqual(res.attrs['standard_name'], 'toa_bidirectional_reflectance') data = res.compute() np.testing.assert_allclose(data, 0.2575)