public void Piano_Disable_WhenKeyDoesNotExist_ShouldDoNothing()
{
// Arrange
Piano p = new Piano();
int oct = Piano.BASE_OCTAAF + Piano.OCTAVEN;
string letter = "C";
bool special = false;
// Act
p.Disable(oct, letter, special);
// Assert
Assert.IsNull(p.FindKey(oct, letter, special));
}
public void Piano_Disable_WhenKeyExists_ShouldSetEnabledToTrue()
{
// Arrange
Piano p = new Piano();
int oct = Piano.BASE_OCTAAF;
string letter = "C";
bool special = false;
// Act
p.Enable(oct, letter, special);
p.Disable(oct, letter, special);
// Assert
PianoKey pk = p.FindKey(oct, letter, special);
Assert.IsNotNull(pk);
Assert.IsFalse(pk.Enabled);
}