Feat:Fix

Author: nilejack

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

@@ -1,6 +1,7 @@
 package com.codedifferently.lesson17.bank;
 
 import com.codedifferently.lesson17.bank.exceptions.CheckVoidedException;
+import com.codedifferently.lesson17.bank.exceptions.SavingsAccount;
 
 /** Represents a check. */
 public class Check {
@@ -21,6 +22,9 @@ public Check(String checkNumber, double amount, CheckingAccount account) {
     if (amount < 0) {
       throw new IllegalArgumentException("Check amount must be positive");
     }
+    if (account instanceof SavingsAccount) {
+      throw new UnsupportedOperationException("Cannot issue checks from a savings account.");
+    }
     this.checkNumber = checkNumber;
     this.amount = amount;
     this.account = account;
@@ -47,7 +51,7 @@ public void voidCheck() {
    */
   public void depositFunds(CheckingAccount toAccount) {
     if (isVoided) {
-      throw new CheckVoidedException("Check is voided");
+      throw new CheckVoidedException("MoneyOrder is voided");
     }
     account.withdraw(amount);
     toAccount.deposit(amount);

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

@@ -68,7 +68,7 @@ void testEquals() {
   @Test
   void testToString() {
     // Arrange
-    CheckingAccount account = new CheckingAccount("123456789", null, 0);
+    CheckingAccount account = new CheckingAccount("123456789", null, 50.0);
     MoneyOrder classUnderTest = new MoneyOrder("123456789", 50.0, account);
     // Act
     String result = classUnderTest.toString();

lesson_17/bank/bank_app/src/test/java/com/codedifferently/lesson17/bank/exceptions/SavingsAccount_NullCheckTest.java

@@ -0,0 +1 @@
+