public void BandPass()
{
const double lowPassbandFreq = 2500 / _SamplingFrequency;
const double lowStopbandFreq = 2000 / _SamplingFrequency;
const double highPassbandFreq = 3000 / _SamplingFrequency;
const double highStopbandFreq = 3500 / _SamplingFrequency;
const double passbandRipple = 5;
const double stopbandAttenuation = 6;
var(n, w1, w2) = Designer.BandPass(lowStopbandFreq, lowPassbandFreq, highPassbandFreq, highStopbandFreq, passbandRipple, stopbandAttenuation);
const int expectedOrder = 1;
const double expectedCutoffLow = 0.1287104733860468;
const double expectedCutoffHigh = 0.1457165559830869;
Assert.AreEqual(expectedOrder, n);
Assert.AreEqual(expectedCutoffLow, w1, _Tolerance);
Assert.AreEqual(expectedCutoffHigh, w2, _Tolerance);
}