public void SetTile_LimitOkay_Succeeded(int x, int y)
{
var position = new Vector(x, y);
var tile = new Tile();
var extent = Mock.Of <Extent>(e => e.SetTile(position, tile));
var limitedExtent = new LimitedExtent(extent, 1);
Assert.That(limitedExtent.SetTile(position, tile));
Mock.Get(extent).Verify(e => e.SetTile(position, tile), Times.Once);
}
public void SetTile_LimitPassed_Failed(int x, int y)
{
var position = new Vector(x, y);
var tile = new Tile();
var extent = Mock.Of <Extent>(e => e.SetTile(Vector.Zero, new Tile()));
Mock.Get(extent).Setup(e => e.SetTile(position, tile)).Throws(new InvalidOperationException());
var limitedExtent = new LimitedExtent(extent, 1);
limitedExtent.SetTile(Vector.Zero, new Tile());
Assert.That(!limitedExtent.SetTile(position, tile));
}
/// <summary>
/// Creates a new instance of the <see cref="EditSession" /> class with the specified world, limit, and mask.
/// </summary>
/// <param name="world">The world to modify, which must not be <c>null</c>.</param>
/// <param name="limit">The limit on the number of tiles that can be set.</param>
/// <param name="mask">The mask to test, which must not be <c>null</c>.</param>
/// <exception cref="ArgumentNullException">
/// Either <paramref name="world" /> or <paramref name="mask" /> is <c>null</c>.
/// </exception>
public static EditSession Create([NotNull] World world, int limit, [NotNull] Mask mask)
{
if (world == null)
{
throw new ArgumentNullException(nameof(world));
}
if (mask == null)
{
throw new ArgumentNullException(nameof(mask));
}
var changeSet = new ChangeSet();
Extent extent = new LoggedExtent(world, changeSet);
extent = new LimitedExtent(extent, limit);
extent = new MaskedExtent(extent, mask);
return(new EditSession(extent, world, changeSet));
}
