public void Stack_Is_Empty()
{
var stack = new StackMin();
var isEmpty = stack.IsEmpty();
Assert.True(isEmpty);
Assert.Equal(0, stack.Length);
Assert.Null(stack.Top);
Assert.Null(stack.Bottom);
Assert.Equal(int.MaxValue, stack.Min());
}
public void Stack_Is_Not_Empty()
{
var stack = new StackMin();
stack.Push(10);
var isEmpty = stack.IsEmpty();
Assert.False(isEmpty);
Assert.Equal(1, stack.Length);
Assert.NotNull(stack.Top);
Assert.NotNull(stack.Bottom);
Assert.Equal(10, stack.Min());
}