@Test
public void testDeposits() {
DollarAmount someAmount = randomDollarAmount();
batman.deposit(someAmount);
assertEquals(batman.currentBalance(), batmanInitialBalance.add(someAmount));
DollarAmount anotherAmount = randomDollarAmount();
batman.deposit(anotherAmount);
assertEquals(batman.currentBalance(), batmanInitialBalance.add(someAmount).add(anotherAmount));
}
@Test
public void testWithdrawals() {
DollarAmount someAmount = randomDollarAmount();
robin.withdrawal(someAmount);
assertEquals(robin.currentBalance(), robinInitialBalance.subtract(someAmount));
DollarAmount anotherAmount = randomDollarAmount();
robin.withdrawal(anotherAmount);
assertEquals(
robin.currentBalance(), robinInitialBalance.subtract(someAmount).subtract(anotherAmount));
}
@Test
public void testTransfers() {
DollarAmount someAmount = randomDollarAmount();
batman.transferTo(robin, someAmount);
assertEquals(batman.currentBalance(), batmanInitialBalance.subtract(someAmount));
assertEquals(robin.currentBalance(), robinInitialBalance.add(someAmount));
DollarAmount anotherAmount = randomDollarAmount();
robin.transferTo(batman, anotherAmount);
assertEquals(
batman.currentBalance(), batmanInitialBalance.subtract(someAmount).add(anotherAmount));
assertEquals(
robin.currentBalance(), robinInitialBalance.add(someAmount).subtract(anotherAmount));
}