#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (c) 2019 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/>.
"""Unit testing for the ABI enhancement functions."""
import unittest
import dask.array as da
import numpy as np
import xarray as xr
[docs]
class TestABIEnhancement(unittest.TestCase):
"""Test the ABI enhancement functions."""
[docs]
def setUp(self):
"""Create fake data for the tests."""
data = da.linspace(0, 1, 16).reshape((4, 4))
self.da = xr.DataArray(data, dims=("y", "x"), attrs={"test": "test"})
[docs]
def test_cimss_true_color_contrast(self):
"""Test the cimss_true_color_contrast enhancement."""
from trollimage.xrimage import XRImage
from satpy.enhancements.abi import cimss_true_color_contrast
expected = np.array([[
[0., 0., 0.05261956, 0.13396146],
[0.21530335, 0.29664525, 0.37798715, 0.45932905],
[0.54067095, 0.62201285, 0.70335475, 0.78469665],
[0.86603854, 0.94738044, 1., 1.],
]])
img = XRImage(self.da)
cimss_true_color_contrast(img)
np.testing.assert_almost_equal(img.data.compute(), expected)