public void TestGetOldestPersonSuccess()
{
var personList = new List <Person> {
new Person {
Name = "George", Gender = "Male"
}
};
_addressBookLoader.Setup(c => c.LoadAddressBook()).Returns(personList);
classUnderTest = new AddressBookService(_addressBookLoader.Object, _logger.Object);
var result = classUnderTest.GetOldestPerson();
Assert.Equal(personList[0], result.Result);
}
