How to do unit test console output with xUnit.net?

I have a method that prints private variable of the class.

public class Test
{
    private int number;

    public Test(int number)
    {
        this.number = number;
    }

    public void PrintValue()
    {
        Console.WriteLine("Number: " + number);
    }
}

How can I create an unit test to make sure it prints value I expected on console?