public void ShowBack_WhenBackSideIsAnEmptyString_ReturnsEmptyString()
{
Flashcard flashcard = new Flashcard("wh", string.Empty);
string result = flashcard.ShowBack();
Assert.That(result, Is.EqualTo(string.Empty));
}
public void ShowBack_WhenTheBackSideIsFive_ReturnsFive()
{
Flashcard flashcard = new Flashcard("", "five");
string result = flashcard.ShowBack();
Assert.That(result, Is.EqualTo("five"));
}