package rewards.internal;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import rewards.AccountContribution;
import rewards.Dining;
import rewards.RewardConfirmation;
import rewards.internal.account.AccountRepository;
import rewards.internal.restaurant.RestaurantRepository;
import rewards.internal.reward.RewardRepository;
import common.money.MonetaryAmount;
import static org.junit.Assert.*;
/**
* Unit tests for the RewardNetworkImpl application logic. Configures the implementation with stub repositories
* containing dummy data for fast in-memory testing without the overhead of an external data source.
*
* Besides helping catch bugs early, tests are a great way for a new developer to learn an API as he or she can see the
* API in action. Tests also help validate a design as they are a measure for how easy it is to use your code.
*/
@RunWith(JUnit4.class)
public class RewardNetworkImplTest {
/**
* The object being tested.
*/
private RewardNetworkImpl rewardNetwork;
@Before
public void setUp() throws Exception {
// create stubs to facilitate fast in-memory testing with dummy data and no external dependencies
AccountRepository accountRepo = new StubAccountRepository();
RestaurantRepository restaurantRepo = new StubRestaurantRepository();
RewardRepository rewardRepo = new StubRewardRepository();
// setup the object being tested by handing what it needs to work
rewardNetwork = new RewardNetworkImpl(accountRepo, restaurantRepo, rewardRepo);
}
@Test
public void testRewardForDining() {
// create a new dining of 100.00 charged to credit card '1234123412341234' by merchant '123457890' as test input
Dining dining = Dining.createDining("100.00", "1234123412341234", "1234567890");
// call the 'rewardNetwork' to test its rewardAccountFor(Dining) method
RewardConfirmation confirmation = rewardNetwork.rewardAccountFor(dining);
// assert the expected reward confirmation results
assertNotNull(confirmation);
assertNotNull(confirmation.getConfirmationNumber());
// assert an account contribution was made
AccountContribution contribution = confirmation.getAccountContribution();
assertNotNull(contribution);
// the account number should be '123456789'
assertEquals("123456789", contribution.getAccountNumber());
// the total contribution amount should be 8.00 (8% of 100.00)
assertEquals(MonetaryAmount.valueOf("8.00"), contribution.getAmount());
// the total contribution amount should have been split into 2 distributions
assertEquals(2, contribution.getDistributions().size());
// each distribution should be 4.00 (as both have a 50% allocation)
assertEquals(MonetaryAmount.valueOf("4.00"), contribution.getDistribution("Annabelle").getAmount());
assertEquals(MonetaryAmount.valueOf("4.00"), contribution.getDistribution("Corgan").getAmount());
}
}