public void Should_correctly_calculate_coefficients_for_even_numbered_order()
{
var target = new HighPassFilterFunction();
var expected = new float[]
{
-0.04161178f,
-0.0429360829f,
-0.0439831242f,
-0.0447402224f,
-0.0451981947f,
0.954648554f,
-0.0451981947f,
-0.0447402224f,
-0.0439831242f,
-0.0429360829f,
-0.04161178f
};
var actual = target.CalculateCoefficients(10, 0f, 1000f, 44100);
CollectionAssert.AreEqual(expected, actual, new FloatComparer());
}
public void Should_throw_if_upper_cutoff_frequency_is_negative()
{
var target = new HighPassFilterFunction();
target.CalculateCoefficients(1, 1f, -1f, 1);
}
public void Should_throw_if_sample_rate_is_negative()
{
var target = new HighPassFilterFunction();
target.CalculateCoefficients(1, 1f, 1f, -1);
}
public void Should_throw_if_filter_order_is_negative()
{
var target = new HighPassFilterFunction();
target.CalculateCoefficients(-1, 1f, 1f, 1);
}
