public void SpriteFromSheetTests()
{
var fromNullSheet = new SpriteFromSheet();
Assert.AreEqual(0, fromNullSheet.SpritesCount);
Assert.IsNull(fromNullSheet.GetSprite(0));
var emptySheet = new SpriteSheet();
var fromEmptySheet = new SpriteFromSheet { Sheet = emptySheet };
Assert.AreEqual(0, fromEmptySheet.SpritesCount);
Assert.IsNull(fromEmptySheet.GetSprite(0));
var nullList = new SpriteSheet { Sprites = null };
var fromnullListSheet = new SpriteFromSheet { Sheet = nullList };
Assert.AreEqual(0, fromnullListSheet.SpritesCount);
Assert.IsNull(fromnullListSheet.GetSprite(0));
var emptyList = new SpriteSheet { Sprites = new List<Sprite>() };
var fromEmptyListSheet = new SpriteFromSheet { Sheet = emptyList };
Assert.AreEqual(0, fromEmptyListSheet.SpritesCount);
Assert.IsNull(fromEmptyListSheet.GetSprite(0));
var validSheet = new SpriteSheet() { Sprites = new List<Sprite> { new Sprite("0"), new Sprite("1") } };
var fromValidSheet = new SpriteFromSheet { Sheet = validSheet };
Assert.AreEqual(2, fromValidSheet.SpritesCount);
for (int i = 0; i < fromValidSheet.SpritesCount; i++)
{
Assert.AreEqual(i.ToString(), fromValidSheet.GetSprite(i).Name);
}
}
/// <summary>
/// Creates a new instance of <see cref="SpriteComponent"/>
/// </summary>
public SpriteComponent()
{
SpriteProvider = new SpriteFromSheet();
PremultipliedAlpha = true;
}