private void CharactersAreUnique(IStringAnalyzer analyzer)
{
string phraseWithUniqueCharacters = "abcdefghijklmnopqrstuvwxyz";
bool result = analyzer.CharactersAreUnique(phraseWithUniqueCharacters);
Assert.AreEqual(true, result);
}
private void CharactersAreNotUnique(IStringAnalyzer analyzer)
{
string phraseWithRepeatedCharacters = "This is a test string, which should fail";
bool result = analyzer.CharactersAreUnique(phraseWithRepeatedCharacters);
Assert.AreEqual(false, result);
}