public void DecreasesPileByOne()
{
var hand = new Hand <TestCard>(TestCard.Factory(5));
var priorSize = hand.Count;
var taken = hand.TakeAt(index: 3);
Assert.NotNull(taken);
Assert.Equal(expected: priorSize - 1, actual: hand.Count);
}
public void ThrowsTooHighIndex()
{
var hand = new Hand <TestCard>(TestCard.Factory(5));
var priorSize = hand.Count;
var ex = Assert.Throws <ArgumentOutOfRangeException>(() => hand.TakeAt(index: hand.Count + 1));
Assert.StartsWith(expectedStartString: ErrorStrings.RetrievalTooHighH, actualString: ex.Message);
Assert.Equal(expected: "index", actual: ex.ParamName);
Assert.Equal(expected: priorSize, actual: hand.Count);
}
public void ThrowsOnNullFuncReturn()
{
var hand = new Hand <TestCard>(TestCard.Factory(5));
var priorSize = hand.Count;
var ex = Assert.Throws <InvalidOperationException>(() => hand.Order(orderFunc: cards => null));
Assert.Equal(expected: ErrorStrings.NewSequenceNull, actual: ex.Message);
Assert.Equal(expected: priorSize, actual: hand.Count);
}
public void ThrowsOnNullFunc()
{
var hand = new Hand <TestCard>(TestCard.Factory(5));
var priorSize = hand.Count;
var ex = Assert.Throws <ArgumentNullException>(() => hand.Order(orderFunc: null));
Assert.Equal(expected: "orderFunc", actual: ex.ParamName);
Assert.Equal(expected: priorSize, actual: hand.Count);
}
public void FuncDoesNotGiveDefaultArray()
{
const int init = 0;
const int added = 5;
var hand = new Hand <TestCard>();
bool funcCalled = false;
hand.Order(orderFunc: cards =>
{
funcCalled = true;
Assert.False(cards.IsDefault);
return(cards.Concat(TestCard.Factory(added)));
});
Assert.True(funcCalled);
Assert.Equal(expected: init + added, actual: hand.Count);
}