public void Piano_FindKey_WhenKeyDoesNotExist_ShouldReturnNull()
{
// Arrange
Piano p = new Piano();
// Act
PianoKey pk = p.FindKey(4, "Q", false);
// Assert
Assert.IsNull(pk);
}
public void Piano_FindKey_WhenKeyExists_ShouldReturnKey()
{
// Arrange
Piano p = new Piano();
// Act
PianoKey pk = p.FindKey(4, "C", false);
// Assert
Assert.AreEqual("C", pk.Name);
Assert.AreEqual(4, pk.Octave);
Assert.AreEqual(false, pk.Black);
}
public void Piano_Enable_WhenKeyDoesNotExist_ShouldDoNothing()
{
// Arrange
Piano p = new Piano();
int oct = Piano.BASE_OCTAAF + Piano.OCTAVEN;
string letter = "C";
bool special = false;
// Act
p.Enable(oct, letter, special);
// Assert
Assert.IsNull(p.FindKey(oct, letter, special));
}
public void Piano_Enable_WhenKeyExists_ShouldSetEnabledToTrue()
{
// Arrange
Piano p = new Piano();
int oct = Piano.BASE_OCTAAF;
string letter = "C";
bool special = false;
// Act
p.Enable(oct, letter, special);
// Assert
PianoKey pk = p.FindKey(oct, letter, special);
Assert.IsNotNull(pk);
Assert.IsTrue(pk.Enabled);
}
public void Piano_ResetAll()
{
// Arrange
Piano p = new Piano();
int oct = Piano.BASE_OCTAAF;
string letter = "C";
bool special = false;
// Act
p.Enable(oct, letter, special);
p.ResetAll();
// Asset
PianoKey pk = p.FindKey(oct, letter, special);
Assert.IsNotNull(pk);
Assert.IsFalse(pk.Enabled);
}