public async void ShouldBeNotRepeated()
{
PetFinderContext context = dbContextFactory.CreateContext();
GenderService genderService = new GenderService(context);
string notRepeatedName = "Masculino";
bool isValid = await genderService.IsRepeated(notRepeatedName);
// Deberia ser falso ya que la cadena tiene 21 caracteres, siendo el maximo 20
Assert.False(isValid);
}