public void TestStackOperations()
{
var backup = new Backup <BimaruGrid>();
var grid = new BimaruGrid(1, 2);
var p0 = new GridPoint(0, 0);
var p1 = new GridPoint(0, 1);
grid[p0] = BimaruValue.SHIP_SINGLE;
grid[p1] = BimaruValue.WATER;
backup.SetSavePoint(grid);
grid[p0] = BimaruValue.SHIP_CONT_DOWN;
grid[p1] = BimaruValue.UNDETERMINED;
backup.RestoreAndDeleteLastSavepoint(grid);
BimaruValue[,] expectedFieldValues = new BimaruValue[1, 2]
{
{ BimaruValue.SHIP_SINGLE, BimaruValue.WATER }
};
grid.AssertEqual(expectedFieldValues);
AssertEmptyStack(backup);
}
private void AssertEmptyStack(Backup <BimaruGrid> backup)
{
var destination = new BimaruGrid(1, 1);
Assert.ThrowsException <InvalidOperationException>(() => backup.RestoreAndDeleteLastSavepoint(destination));
}
public void TestRestoreSavePointToNull()
{
var backup = new Backup <BimaruGrid>();
Assert.ThrowsException <ArgumentNullException>(() => backup.RestoreAndDeleteLastSavepoint(null));
}