public void TestStringService_GetT9Code()
{
ILetterMappingRepository letterMappingRepository = new LetterMappingRepository();
ISettingsRepository settingsRepository = new SettingsRepository();
IStringService stringService = new StringService();
string output = stringService.GetT9Code(letterMappingRepository.Get(),
"hello world", false, settingsRepository.GetSmallInputLengthConstraint());
Assert.IsTrue(output == "4433555 555666096667775553");
}