public void Should_correctly_calculate_coefficients_for_even_numbered_order()
{
var target = new LowPassFilterFunction();
var expected = new float[]
{
0.00453131273f,
0.004532693f,
0.004533767f,
0.00453453371f,
0.004534994f,
0.00453514745f,
0.004534994f,
0.00453453371f,
0.004533767f,
0.004532693f,
0.00453131273f
};
var actual = target.CalculateCoefficients(10, 100f, 0f, 44100);
CollectionAssert.AreEqual(expected, actual, new FloatComparer());
}
public void Should_throw_if_filter_order_is_negative()
{
var target = new LowPassFilterFunction();
target.CalculateCoefficients(-1, 1f, 1f, 1);
}
public void Should_throw_if_sample_rate_is_negative()
{
var target = new LowPassFilterFunction();
target.CalculateCoefficients(1, 1f, 1f, -1);
}
public void Should_not_throw_if_upper_cutoff_frequency_is_negative()
{
var target = new LowPassFilterFunction();
target.CalculateCoefficients(1, 1f, -1f, 1);
}
