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test_dbv.py
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test_dbv.py
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# -*- coding: utf-8 -*-
# test_dbv.py
# This module provides the tests for the dbv function.
# Copyright 2014 Giuseppe Venturini
# This file is part of python-deltasigma.
#
# python-deltasigma is a 1:1 Python replacement of Richard Schreier's
# MATLAB delta sigma toolbox (aka "delsigma"), upon which it is heavily based.
# The delta sigma toolbox is (c) 2009, Richard Schreier.
#
# python-deltasigma 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
# LICENSE file for the licensing terms.
"""This module provides the test class for the dbv() function.
"""
import unittest
import numpy as np
from deltasigma import dbv, undbv
class TestDbv(unittest.TestCase):
"""Test class for dbv()"""
def setUp(self):
self.t1 = np.array([3.0])
self.r1 = 9.5424250943932485
def test_dbv(self):
"""Test function for dbv()"""
res = dbv(self.t1)
t2 = undbv(res)
self.assertTrue(np.allclose(t2, self.t1, atol=1e-8, rtol=1e-5))
self.assertTrue(np.allclose(res, self.r1, atol=1e-8, rtol=1e-5))