awips2/cave/com.raytheon.uf.viz.derivparam.python/localization/derivedParameters/functions/TestVorticityAdv.py
root e2ecdcfe33 Initial revision of AWIPS2 11.9.0-7p5
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Python

##
# This software was developed and / or modified by Raytheon Company,
# pursuant to Contract DG133W-05-CQ-1067 with the US Government.
#
# U.S. EXPORT CONTROLLED TECHNICAL DATA
# This software product contains export-restricted data whose
# export/transfer/disclosure is restricted by U.S. law. Dissemination
# to non-U.S. persons whether in the United States or abroad requires
# an export license or other authorization.
#
# Contractor Name: Raytheon Company
# Contractor Address: 6825 Pine Street, Suite 340
# Mail Stop B8
# Omaha, NE 68106
# 402.291.0100
#
# See the AWIPS II Master Rights File ("Master Rights File.pdf") for
# further licensing information.
##
import unittest
import numpy as np
import VorticityAdv
class TestVorticityAdv(unittest.TestCase):
def setUp(self):
"""Set up arrays for calls to Vorticity.execute()."""
self.U = np.ones((5,5), dtype=np.float32)
self.V = np.ones_like(self.U);
self.Wind = (self.U,self.V)
self.Q = np.ones_like(self.U) * 0.5
self.dx = np.ones_like(self.U)
self.dy = np.ones_like(self.U)
def testOuterEdge(self):
"""Confirm that the outer edge is set to the invalid placeholder (1e37). """
vrtcta = VorticityAdv.execute(self.Wind, self.Q, self.dx, self.dy)
self.assertEquals((5,5), vrtcta.shape, "vrtcta.shape")
self.assertEquals(np.float32, vrtcta.dtype, "vrtcta.dtype")
correctAnswer = np.array([[1e37, 1e37, 1e37, 1e37, 1e37],
[1e37, 0, 0, 0, 1e37],
[1e37, 0, 0, 0, 1e37],
[1e37, 0, 0, 0, 1e37],
[1e37, 1e37, 1e37, 1e37, 1e37]], dtype=np.float32)
self.failUnless(np.all(correctAnswer==vrtcta))
def testMiddleMath(self):
"""Test """
self.U[1,2] = 5
self.V[1,2] = 5
self.Q[3,2] = 0.8
vrtcta = VorticityAdv.execute(self.Wind, self.Q, self.dx, self.dy)
correctAnswer = np.array([[1e37, 1e37, 1e37, 1e37, 1e37],
[1e37, 4.0, 0, 4.0, 1e37],
[1e37, 0, -4.15, 0, 1e37],
[1e37, -0.15, 0, 0.15, 1e37],
[1e37, 1e37, 1e37, 1e37, 1e37]], dtype=np.float32)
self.failUnless(np.all(correctAnswer==vrtcta), "VorticityAdv is incorrect.\n" + repr(vrtcta))
def testScalarDxDy(self):
"""Test Vorticity calculation when dx and dy are scalars instead of arrays."""
self.U[1,2] = 5
self.V[1,2] = 5
self.Q[3,2] = 0.8
vrtcta = VorticityAdv.execute(self.Wind, self.Q, 0.1, 0.5)
correctAnswer = np.array([[1e37, 1e37, 1e37, 1e37, 1e37],
[1e37, 80, 0, 80, 1e37],
[1e37, 0, -81.5, 0, 1e37],
[1e37, -0.3, 0, 0.3, 1e37],
[1e37, 1e37, 1e37, 1e37, 1e37]], dtype=np.float32)
self.failUnless(np.all(correctAnswer==vrtcta), "VorticityAdv is incorrect.\n" + repr(vrtcta))
if "__main__" == __name__:
unittest.main()