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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (c) 2010, 2011.
# Author(s):
# Martin Raspaud <martin.raspaud@smhi.se>
# This file is part of mpop.
# mpop 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.
# mpop 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
# mpop. If not, see <http://www.gnu.org/licenses/>.
"""Module for testing the :mod:`mpop.instruments.seviri` module.
"""
import random
import unittest
import numpy as np
import mpop.instruments.seviri
from mpop.imageo import geo_image
def patch_scene_mask():
"""Patch the :mod:`mpop.scene` module to avoid using it in these tests.
"""
class FakeChannel(object):
"""FakeChannel class.
"""
def __init__(self, val):
del val
self.data = np.ma.array((random.random(),))
def check_range(self, *args):
"""Dummy check_range function.
"""
del args
return self.data
class FakeSatscene(object):
"""Fake SatelliteInstrumentScene.
"""
__version__ = "fake"
def __init__(self):
self.channels = {}
self.area = None
self.time_slot = None
self.error = []
def check_channels(self, *args):
"""Dummy check_channels function.
"""
for chn in args:
if chn in self.error:
raise RuntimeError()
def __getitem__(self, key):
if key not in self.channels:
self.channels[key] = FakeChannel(key)
return self.channels[key]
mpop.instruments.visir.OldVisirCompositer = mpop.instruments.visir.VisirCompositer
mpop.instruments.visir.VisirCompositer = FakeSatscene
reload(mpop)
reload(mpop.instruments)
reload(mpop.instruments.seviri)
def patch_scene():
"""Patch the :mod:`mpop.scene` module to avoid using it in these tests.
"""
class FakeChannel(object):
"""FakeChannel class.
"""
def __init__(self, val):
self.data = val
def check_range(self, *args):
"""Dummy check_range function.
"""
del args
return self.data
class FakeSatscene(object):
"""Fake SatelliteInstrumentScene.
"""
__version__ = "fake"
def __init__(self):
self.channels = None
self.area = None
self.time_slot = None
self._data_holder = self
def check_channels(self, *args):
"""Dummy check_channels function.
"""
self.channels = args
def __contains__(self, point):
return True
def __getitem__(self, key):
if key == "_IR39Corr":
return FakeChannel(3.75)
elif key == "HRV":
return FakeChannel(0.7)
return FakeChannel(key)
mpop.instruments.visir.OldVisirCompositer = mpop.instruments.visir.VisirCompositer
mpop.instruments.visir.VisirCompositer = FakeSatscene
reload(mpop)
reload(mpop.instruments)
reload(mpop.instruments.seviri)
def unpatch_scene():
"""Unpatch the :mod:`mpop.scene` module.
"""
mpop.instruments.visir.VisirCompositer = mpop.instruments.visir.OldVisirCompositer
delattr(mpop.instruments.visir, "OldVisirCompositer")
reload(mpop)
reload(mpop.instruments)
reload(mpop.instruments.visir)
reload(mpop.instruments.seviri)
def patch_geo_image():
"""Patch the :mod:`imageo.geo_image` module to avoid using it in these
tests.
"""
class FakeGeoImage:
"""FakeGeoImage class.
"""
def __init__(self, *args, **kwargs):
self.args = args
self.kwargs = kwargs
self.lum = None
self.channels = [self]
def enhance(self, **kwargs):
"""Dummy enhance function.
"""
self.kwargs.update(kwargs)
def replace_luminance(self, lum):
"""Dummy remplace_luminance.
"""
self.lum = lum
geo_image.OldGeoImage = geo_image.GeoImage
geo_image.GeoImage = FakeGeoImage
def unpatch_geo_image():
"""Unpatch the :mod:`imageo.geo_image` module.
"""
geo_image.GeoImage = geo_image.OldGeoImage
delattr(geo_image, "OldGeoImage")
class TestComposites(unittest.TestCase):
"""Class for testing the composites.
"""
def setUp(self):
"""Setup stuff.
"""
patch_geo_image()
patch_scene()
self.scene = mpop.instruments.seviri.SeviriCompositer()
# def test_cloudtop(self):
# """Test cloudtop.
# """
# img = self.scene.cloudtop()
# self.assertEquals(img.kwargs["mode"], "RGB")
# self.assertEquals(img.kwargs["fill_value"], (0, 0, 0))
# self.assertEquals(img.args[0], (-3.75, -10.8, -12.0))
# self.assertEquals(img.kwargs["stretch"], (0.005, 0.005))
# self.assertTrue("crange" not in img.kwargs)
# self.assertTrue("gamma" not in img.kwargs)
# def test_night_fog(self):
# """Test night_fog.
# """
# img = self.scene.night_fog()
# self.assertEquals(img.kwargs["mode"], "RGB")
# self.assertEquals(img.kwargs["fill_value"], (0, 0, 0))
# self.assertEquals(img.args[0], (12.0 - 10.8, 10.8 - 3.75, 10.8))
# self.assertEquals(img.kwargs["crange"], ((-4, 2),
# (0, 6),
# (243, 293)))
# self.assertEquals(img.kwargs["gamma"], (1.0, 2.0, 1.0))
# self.assertTrue("stretch" not in img.kwargs)
# def test_hr_overview(self):
# """Test hr_overview.
# """
# img = self.scene.hr_overview()
# self.assertEquals(img.kwargs["mode"], "RGB")
# self.assertEquals(img.kwargs["fill_value"], (0, 0, 0))
# self.assertEquals(img.args[0], (0.635, 0.85, -10.8))
# self.assertEquals(img.kwargs["stretch"], "crude")
# self.assertEquals(list(img.kwargs["gamma"]), list((1.6, 1.6, 1.1)))
# self.assertTrue("crange" not in img.kwargs)
# self.assertEquals(img.lum.kwargs["mode"], "L")
# self.assertEquals(img.lum.kwargs["crange"], (0, 100))
# self.assertEquals(img.lum.kwargs["gamma"], 2.0)
# self.assertTrue("stretch" not in img.lum.kwargs)
# self.assertTrue("fill_value" not in img.lum.kwargs)
# def test_hr_visual(self):
# """Test hr_visual.
# """
# img = self.scene.hr_visual()
# self.assertEquals(img.kwargs["mode"], "L")
# self.assertEquals(img.kwargs["fill_value"], 0)
# self.assertEquals(img.args[0], 0.7)
# self.assertEquals(img.kwargs["stretch"], "crude")
# self.assertTrue("crange" not in img.kwargs)
# self.assertTrue("gamma" not in img.kwargs)
def tearDown(self):
unpatch_scene()
unpatch_geo_image()
class TestCo2Corr(unittest.TestCase):
"""Class for testing the composites.
"""
def setUp(self):
"""Setup stuff.
"""
patch_geo_image()
patch_scene_mask()
self.scene = mpop.instruments.seviri.SeviriCompositer()
def test_co2corr(self):
"""Test CO2 correction.
"""
res = self.scene.co2corr()
bt039 = self.scene[3.9].data
bt108 = self.scene[10.8].data
bt134 = self.scene[13.4].data
dt_co2 = (bt108-bt134)/4.0
rcorr = bt108 ** 4 - (bt108-dt_co2) ** 4
t4_co2corr = bt039 ** 4 + rcorr
if t4_co2corr < 0.0:
t4_co2corr = 0
solution = t4_co2corr ** 0.25
self.assertEquals(res, solution)
self.scene.error = [3.75]
res = self.scene.co2corr()
self.assertTrue(res is None)
def tearDown(self):
unpatch_scene()
unpatch_geo_image()
if __name__ == '__main__':
unittest.main()
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