public void LeafIsNotNode()
{
var sut = new RoseLeaf <bool, double>(-4);
var actual = sut.IsNode();
Assert.False(actual.ToBool());
}
public void MatchLeaf()
{
IRoseTree <string, int> tree = new RoseLeaf <string, int>(42);
int actual = tree.Accept(new MatchIntLeafVisitor());
Assert.Equal(42, actual);
}
public void LeafIsLeaf()
{
var sut = new RoseLeaf <bool, double>(2);
var actual = sut.IsLeaf();
Assert.True(actual.ToBool());
}
public void CataLeaf()
{
IRoseTree <string, int> tree = new RoseLeaf <string, int>(42);
int actual = tree.Cata((x, xs) => x.Length + xs.Sum(), x => x);
Assert.Equal(42, actual);
}