Package rewards.internal

Source Code of rewards.internal.RewardNetworkImplTests

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 RewardNetworkImplTests  {

  /**
   * 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());
  }
}
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