public void Transpose()
{
for (int steps = -7; steps <= 7; steps++)
{
MidiSequence seq1 = CreateScaleSequence();
MidiSequence seq2 = new MidiSequence(seq1);
seq2.Transpose(steps);
var onEvents1 = seq1.SelectMany(t => t.Events).OfType <OnNoteVoiceMidiEvent>().ToArray();
var offEvents1 = seq1.SelectMany(t => t.Events).OfType <OffNoteVoiceMidiEvent>().ToArray();
var onEvents2 = seq2.SelectMany(t => t.Events).OfType <OnNoteVoiceMidiEvent>().ToArray();
var offEvents2 = seq2.SelectMany(t => t.Events).OfType <OffNoteVoiceMidiEvent>().ToArray();
Assert.AreEqual(onEvents1.Length, onEvents2.Length);
Assert.AreEqual(offEvents1.Length, offEvents2.Length);
Assert.AreEqual(onEvents1.Length, offEvents1.Length);
for (int i = 0; i < onEvents1.Length; i++)
{
Assert.AreEqual(onEvents1[i].Note + steps, onEvents2[i].Note);
Assert.AreEqual(offEvents1[i].Note + steps, offEvents2[i].Note);
}
}
}
