public void GenerateNext_GeneratesPasswordFromAlphabet()
{
FormattedText alphabet = new FormattedText("ab");
PermutationGenerator generator = new PermutationGenerator(alphabet);
FormattedText password = generator.GenerateNext();
Assert.IsNotNull(password);
Assert.AreEqual("ab", password.Text);
password = generator.GenerateNext();
Assert.AreEqual("ba", password.Text);
password = generator.GenerateNext();
Assert.AreEqual("ab", password.Text);
}
