feat: adds moneyOrderTest

Author: AmiyahJo

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

@@ -0,0 +1,38 @@
+package com.codedifferently.lesson17.bank;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+public class MoneyOrderTest {
+
+    private CheckingAccount sourceAccount;
+    private AuditLog auditLog;
+
+    @BeforeEach
+    public void setup() {
+        // Arrange
+        sourceAccount = new CheckingAccount("12345678", "John Doe", true, 1000.0);
+        auditLog = new AuditLog();
+    }
+
+   @Test
+    public void testMoneyOrderWithdrawal() {
+        // Act
+        MoneyOrder moneyOrder = new MoneyOrder(sourceAccount, 500.0, auditLog);
+
+        // Assert
+        assertEquals(500.0, sourceAccount.getBalance(), "Balance after money order should be 500");
+
+        // Assert
+        assertEquals(1, auditLog.getLogEntries().size(), "Audit log should contain 1 entry");
+        String logEntry = auditLog.getLogEntries().get(0);
+
+        assertTrue(logEntry.contains("Account: 12345678"), "Log should contain the correct account number");
+        assertTrue(logEntry.contains("MoneyOrder created"), "Log should describe the MoneyOrder creation");
+        assertTrue(logEntry.contains("-500.00"), "Log should reflect the correct withdrawal amount");
+        assertTrue(logEntry.contains("MoneyOrder"), "Log should specify the transaction type as 'MoneyOrder'");
+    }
+}