public void FuncStackTest()
{
var sut = new FuncStack();
sut.Should().NotBeNull();
sut.Stack.Should().NotBeNull();
sut.Stack.Should().BeEmpty();
}
public void PopTest()
{
var sut = new FuncStack();
sut.Should().NotBeNull();
sut.Push(5.AsFun()); // assume push works
sut.Pop();
sut.Stack.Should().BeEmpty();
}
public void PushTest()
{
var sut = new FuncStack();
sut.Should().NotBeNull();
sut.Stack.Should().NotBeNull();
sut.Stack.Should().BeEmpty();
sut.Push(5.AsFun());
sut.Stack.Should().NotBeEmpty();
}