public void TestFeature()
{
string dirName = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
string path = dirName + "/bensound-epic.mp3";
Mpg123 mpg123 = new Mpg123();
mpg123.Open(path);
Assert.That(() => mpg123.Feature(Mpg123.Mpg123FeatureSet.MPG123_FEATURE_EQUALIZER), Throws.Nothing);
}