public void Constructor_CoinViewWithBackedCoinViews_SetsTopAndBottom()
{
var nonBackedCoinView = new NonBackedCoinView();
var backedCoinView2 = new BackedCoinView2(nonBackedCoinView);
var backedCoinView1 = new BackedCoinView1(backedCoinView2);
var stack = new CoinViewStack(backedCoinView1);
Assert.True(stack.Top is BackedCoinView1);
Assert.True(stack.Bottom is NonBackedCoinView);
}
public void Find_CoinViewWithinStack_ReturnsCoinView()
{
var nonBackedCoinView = new NonBackedCoinView();
var backedCoinView2 = new BackedCoinView2(nonBackedCoinView, 3);
var backedCoinView1 = new BackedCoinView1(backedCoinView2, 4);
var stack = new CoinViewStack(backedCoinView1);
var coinView = stack.Find <BackedCoinView2>();
Assert.True(coinView is BackedCoinView2);
Assert.Equal(3, coinView.OutputCount);
}
public void GetElements_NullCoinViewWithinStack_ReturnsNonNullCoinViews()
{
var backedCoinView2 = new BackedCoinView2(null);
var backedCoinView1 = new BackedCoinView1(backedCoinView2);
var stack = new CoinViewStack(backedCoinView1);
List <CoinView> coinViews = stack.GetElements().ToList();
Assert.Equal(2, coinViews.Count);
Assert.True(coinViews[0] is BackedCoinView1);
Assert.True(coinViews[1] is BackedCoinView2);
}
public void GetElements_CoinViewWithBackedCoinViews_ReturnsStack()
{
var nonBackedCoinView = new NonBackedCoinView();
var backedCoinView2 = new BackedCoinView2(nonBackedCoinView);
var backedCoinView1 = new BackedCoinView1(backedCoinView2);
var stack = new CoinViewStack(backedCoinView1);
List <CoinView> coinViews = stack.GetElements().ToList();
Assert.Equal(3, coinViews.Count);
Assert.True(coinViews[0] is BackedCoinView1);
Assert.True(coinViews[1] is BackedCoinView2);
Assert.True(coinViews[2] is NonBackedCoinView);
}
