feat: adds new davidsmith banking updates for lesson 17

lesson_17/bank/bank_app/src/main/java/com/codedifferently/lesson17/bank/MoneyOrder.Java

@@ -0,0 +1,110 @@
+package com.codedifferently.lesson17.bank;
+
+import com.codedifferently.lesson17.bank.exceptions.MoneyOrderVoidedException;
+
+/** Represents a moneyorder. */
+public class MoneyOrder {
+
+  private final String moneyOrderNumber;
+  private final double amount;
+  private final CheckingAccount account;
+  private boolean isVoided = false;
+
+  /**
+   * Creates a new moneyorder.
+   *
+   * @param moneyOrderNumber The moneyorder number.
+   * @param amount The amount of the moneyorder.
+   * @param account The account the moneyorder is drawn on.
+   */
+  public MoneyOrder(String moneyOrderNumber, double amount, CheckingAccount account) {
+    if (amount < 0) {
+      throw new IllegalArgumentException("MoneyOrder amount must be positive");
+    }
+    account.withdraw(amount);
+    this.moneyOrderNumber = moneyOrderNumber;
+    this.amount = amount;
+    this.account = account;
+  }
+
+  /**
+   * Gets the moneyorder number.
+   *
+   * @return The moneyorder number
+   */
+  public String getMoneyOrderNumber() {
+    return moneyOrderNumber;
+  }
+
+  /**
+   * Gets the amount given for the moneyorder.
+   *
+   * @return The amount.
+   */
+  public double getAmount() {
+    return amount;
+  }
+
+  /**
+   * Gets the account from the moneyordering account.
+   *
+   * @return The account in this instance.
+   */
+  public CheckingAccount getAccount() {
+    return account;
+  }
+
+  /**
+   * Gets the voided status of the moneyorder.
+   *
+   * @return True if the moneyorder is voided, and false otherwise.
+   */
+  public boolean getIsVoided() {
+    return isVoided;
+  }
+
+  /** Voids the moneyorder. */
+  public void voidMoneyOrder() {
+    isVoided = true;
+  }
+
+  /**
+   * Deposits the moneyorder into an account.
+   *
+   * @param toAccount The account to deposit the moneyorder into.
+   */
+  public void depositFunds(CheckingAccount toAccount) {
+    if (isVoided) {
+      throw new MoneyOrderVoidedException("MoneyOrder is voided");
+    }
+    account.withdraw(amount);
+    toAccount.deposit(amount);
+    voidMoneyOrder();
+  }
+
+  @Override
+  public int hashCode() {
+    return moneyOrderNumber.hashCode();
+  }
+
+  @Override
+  public boolean equals(Object obj) {
+    if (obj instanceof MoneyOrder other) {
+      return moneyOrderNumber.equals(other.moneyOrderNumber);
+    }
+    return false;
+  }
+
+  @Override
+  public String toString() {
+    return "MoneyOrder{"
+        + "moneyOrderNumber='"
+        + moneyOrderNumber
+        + '\''
+        + ", amount="
+        + amount
+        + ", account="
+        + account.getAccountNumber()
+        + '}';
+  }
+}

lesson_17/bank/bank_app/src/main/java/com/codedifferently/lesson17/bank/SavingsAccount.java

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+package com.codedifferently.lesson17.bank;
+
+import java.util.Set;
+
+public class SavingsAccount extends CheckingAccount {
+  public SavingsAccount(String accountNumber, Set<Customer> owners, double initialBalance) {
+    super(accountNumber, owners, initialBalance);
+  }
+
+  @Override
+  public int hashCode() {
+    return getAccountNumber().hashCode();
+  }
+
+  @Override
+  public boolean equals(Object obj) {
+    if (obj instanceof SavingsAccount other) {
+      return this.getAccountNumber().equals(other.getAccountNumber());
+    }
+    return false;
+  }
+
+  @Override
+  public String toString() {
+    return "SavingsAccount{"
+        + "accountNumber='"
+        + getAccountNumber()
+        + '\''
+        + ", balance="
+        + getBalance()
+        + ", isActive="
+        + getStatus()
+        + '}';
+  }
+}

lesson_17/bank/bank_app/src/main/java/com/codedifferently/lesson17/bank/exceptions/MoneyOrderVoided.java

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+package com.codedifferently.lesson17.bank.exceptions;
+
+public class MoneyOrderVoidedException extends RuntimeException {
+
+  public MoneyOrderVoidedException() {}
+
+  public MoneyOrderVoidedException(String message) {
+    super(message);
+  }
+}

lesson_17/bank/bank_app/src/test/java/com/codedifferently/lesson17/bank/MoneyOrderTest.java

@@ -0,0 +1,76 @@
+package com.codedifferently.lesson17.bank;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
+
+import com.codedifferently.lesson17.bank.exceptions.MoneyOrderVoidedException;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+class MoneyOrderTest {
+  private CheckingAccount account1;
+  private CheckingAccount account2;
+  private MoneyOrder classUnderTest;
+
+  @BeforeEach
+  void setUp() {
+    account1 = new CheckingAccount("123456789", null, 100.0);
+    account2 = new CheckingAccount("987654321", null, 200.0);
+    classUnderTest = new MoneyOrder("123456789", 50.0, account1);
+  }
+
+  @Test
+  void testDepositFunds() {
+    // Act
+    classUnderTest.depositFunds(account2);
+    // Assert
+    assertThat(account1.getBalance()).isEqualTo(0.0);
+    assertThat(account2.getBalance()).isEqualTo(250.0);
+  }
+
+  @Test
+  void testDepositFunds_MoneyOrderVoided() {
+    // Arrange
+    classUnderTest.voidMoneyOrder();
+
+    // Act & Assert
+    assertThatExceptionOfType(MoneyOrderVoidedException.class)
+        .isThrownBy(() -> classUnderTest.depositFunds(account2))
+        .withMessage("MoneyOrder is voided");
+  }
+
+  @Test
+  void testConstructor_CantCreateMoneyOrderWithNegativeAmount() {
+    // Act & Assert
+    assertThatExceptionOfType(IllegalArgumentException.class)
+        .isThrownBy(() -> new MoneyOrder("123456789", -50.0, account1))
+        .withMessage("MoneyOrder amount must be positive");
+  }
+
+  @Test
+  void testHashCode() {
+    // Arrange
+    MoneyOrder otherMoneyOrder = new MoneyOrder("123456789", 50.0, account1);
+
+    // Assert
+    assertThat(classUnderTest.hashCode()).isEqualTo(otherMoneyOrder.hashCode());
+  }
+
+  @Test
+  void testEquals() {
+    // Arrange
+    MoneyOrder otherMoneyOrder = new MoneyOrder("123456789", 50.0, account1);
+    MoneyOrder differentMoneyOrder = new MoneyOrder("987654321", 100.0, account2);
+
+    // Assert
+    assertThat(classUnderTest.equals(otherMoneyOrder)).isTrue();
+    assertThat(classUnderTest.equals(differentMoneyOrder)).isFalse();
+  }
+
+  @Test
+  void testToString() {
+    // Assert
+    assertThat(classUnderTest.toString())
+        .isEqualTo("MoneyOrder{moneyOrderNumber='123456789', amount=50.0, account=123456789}");
+  }
+}

lesson_17/bank/bank_app/src/test/java/com/codedifferently/lesson17/bank/SavingsAccount.java

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+ackage com.codedifferently.lesson17.bank;
+
+import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import com.codedifferently.lesson17.bank.exceptions.InsufficientFundsException;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.UUID;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+class SavingsAccountTest {
+
+  private SavingsAccount classUnderTest;
+  private Set<Customer> owners;
+
+  @BeforeEach
+  void setUp() {
+    owners = new HashSet<>();
+    owners.add(new Customer(UUID.randomUUID(), "John Doe"));
+    owners.add(new Customer(UUID.randomUUID(), "Jane Smith"));
+    classUnderTest = new SavingsAccount("123456789", owners, 100.0);
+  }
+
+  @Test
+  void getAccountNumber() {
+    assertEquals("123456789", classUnderTest.getAccountNumber());
+  }
+
+  @Test
+  void getOwners() {
+    assertEquals(owners, classUnderTest.getOwners());
+  }
+
+  @Test
+  void deposit() {
+    classUnderTest.deposit(50.0);
+    assertEquals(150.0, classUnderTest.getBalance());
+  }
+
+  @Test
+  void deposit_withNegativeAmount() {
+    assertThatExceptionOfType(IllegalArgumentException.class)
+        .isThrownBy(() -> classUnderTest.deposit(-50.0));
+  }
+
+  @Test
+  void withdraw() {
+    classUnderTest.withdraw(50.0);
+    assertEquals(50.0, classUnderTest.getBalance());
+  }
+
+  @Test
+  void withdraw_withNegativeAmount() {
+    assertThatExceptionOfType(IllegalStateException.class)
+        .isThrownBy(() -> classUnderTest.withdraw(-50.0))
+        .withMessage("Withdrawal amount must be positive");
+  }
+
+  @Test
+  void withdraw_withInsufficientBalance() {
+    assertThatExceptionOfType(InsufficientFundsException.class)
+        .isThrownBy(() -> classUnderTest.withdraw(150.0))
+        .withMessage("Account does not have enough funds for withdrawal");
+  }
+
+  @Test
+  void getBalance() {
+    assertEquals(100.0, classUnderTest.getBalance());
+  }
+
+  @Test
+  void closeAccount_withPositiveBalance() {
+    assertThatExceptionOfType(IllegalStateException.class)
+        .isThrownBy(() -> classUnderTest.closeAccount());
+  }
+
+  @Test
+  void isClosed() {
+    assertFalse(classUnderTest.isClosed());
+    classUnderTest.withdraw(100);
+    classUnderTest.closeAccount();
+    assertTrue(classUnderTest.isClosed());
+  }
+
+  @Test
+  void equals() {
+    SavingsAccount otherAccount = new SavingsAccount("123456789", owners, 200.0);
+    assertEquals(classUnderTest, otherAccount);
+  }
+
+  @Test
+  void hashCodeTest() {
+    SavingsAccount otherAccount = new SavingsAccount("123456789", owners, 200.0);
+    assertEquals(classUnderTest.hashCode(), otherAccount.hashCode());
+  }
+
+  @Test
+  void toStringTest() {
+    String expected = "SavingsAccount{accountNumber='123456789', balance=100.0, isActive=true}";
+    assertEquals(expected, classUnderTest.toString());
+  }
+}