#!/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.
#
# 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 ABI compositors."""
import unittest
[docs]class TestABIComposites(unittest.TestCase):
"""Test ABI-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(['abi'])
[docs] def test_simulated_green(self):
"""Test creating a fake 'green' band."""
import dask.array as da
import numpy as np
import xarray as xr
from pyresample.geometry import AreaDefinition
from satpy.composites.abi import SimulatedGreen
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 = SimulatedGreen('green', prerequisites=('C01', 'C02', 'C03'),
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})
c03 = xr.DataArray(da.zeros((rows, cols), chunks=25) + 0.35,
dims=('y', 'x'),
attrs={'name': 'C03', 'area': area})
res = comp((c01, c02, c03))
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, 0.28025)