public void Add(Fact newFact)
{
_facts.Add(newFact);
}
public void WhenCardIsCorrectSpacingIncreases()
{
var now = DateTime.Now;
var fact = new Fact("neko", "cat", now, now);
fact.GiveAnswer(Answer.Correct);
Assert.That(fact.NextReview, Is.EqualTo(now.AddHours(1)));
}
