package junit.samples.money; import junit.framework.TestCase; public class MoneyTest extends TestCase { private Money f12CHF; private Money f14CHF; private Money f7USD; private Money f21USD; private IMoney fMB1; private IMoney fMB2; public static void main(String args[]) { junit.textui.TestRunner.run(MoneyTest.class); } @Override protected void setUp() { f12CHF = new Money(12, "CHF"); f14CHF = new Money(14, "CHF"); f7USD = new Money(7, "USD"); f21USD = new Money(21, "USD"); fMB1 = MoneyBag.create(f12CHF, f7USD); fMB2 = MoneyBag.create(f14CHF, f21USD); } public void testBagMultiply() { // {[12 CHF][7 USD]} *2 == {[24 CHF][14 USD]} IMoney expected = MoneyBag.create(new Money(24, "CHF"), new Money(14, "USD")); assertEquals(expected, fMB1.multiply(2)); assertEquals(fMB1, fMB1.multiply(1)); assertTrue(fMB1.multiply(0).isZero()); } public void testBagNegate() { // {[12 CHF][7 USD]} negate == {[-12 CHF][-7 USD]} IMoney expected = MoneyBag.create(new Money(-12, "CHF"), new Money(-7, "USD")); assertEquals(expected, fMB1.negate()); } public void testBagSimpleAdd() { // {[12 CHF][7 USD]} + [14 CHF] == {[26 CHF][7 USD]} IMoney expected = MoneyBag.create(new Money(26, "CHF"), new Money(7, "USD")); assertEquals(expected, fMB1.add(f14CHF)); } public void testBagSubtract() { // {[12 CHF][7 USD]} - {[14 CHF][21 USD] == {[-2 CHF][-14 USD]} IMoney expected = MoneyBag.create(new Money(-2, "CHF"), new Money(-14, "USD")); assertEquals(expected, fMB1.subtract(fMB2)); } public void testBagSumAdd() { // {[12 CHF][7 USD]} + {[14 CHF][21 USD]} == {[26 CHF][28 USD]} IMoney expected = MoneyBag.create(new Money(26, "CHF"), new Money(28, "USD")); assertEquals(expected, fMB1.add(fMB2)); } public void testIsZero() { assertTrue(fMB1.subtract(fMB1).isZero()); assertTrue(MoneyBag.create(new Money(0, "CHF"), new Money(0, "USD")).isZero()); } public void testMixedSimpleAdd() { // [12 CHF] + [7 USD] == {[12 CHF][7 USD]} IMoney expected = MoneyBag.create(f12CHF, f7USD); assertEquals(expected, f12CHF.add(f7USD)); } public void testBagNotEquals() { IMoney bag = MoneyBag.create(f12CHF, f7USD); assertFalse(bag.equals(new Money(12, "DEM").add(f7USD))); } public void testMoneyBagEquals() { assertTrue(!fMB1.equals(null)); assertEquals(fMB1, fMB1); IMoney equal = MoneyBag.create(new Money(12, "CHF"), new Money(7, "USD")); assertTrue(fMB1.equals(equal)); assertTrue(!fMB1.equals(f12CHF)); assertTrue(!f12CHF.equals(fMB1)); assertTrue(!fMB1.equals(fMB2)); } public void testMoneyBagHash() { IMoney equal = MoneyBag.create(new Money(12, "CHF"), new Money(7, "USD")); assertEquals(fMB1.hashCode(), equal.hashCode()); } public void testMoneyEquals() { assertTrue(!f12CHF.equals(null)); Money equalMoney = new Money(12, "CHF"); assertEquals(f12CHF, f12CHF); assertEquals(f12CHF, equalMoney); assertEquals(f12CHF.hashCode(), equalMoney.hashCode()); assertTrue(!f12CHF.equals(f14CHF)); } public void testMoneyHash() { assertTrue(!f12CHF.equals(null)); Money equal = new Money(12, "CHF"); assertEquals(f12CHF.hashCode(), equal.hashCode()); } public void testSimplify() { IMoney money = MoneyBag.create(new Money(26, "CHF"), new Money(28, "CHF")); assertEquals(new Money(54, "CHF"), money); } public void testNormalize2() { // {[12 CHF][7 USD]} - [12 CHF] == [7 USD] Money expected = new Money(7, "USD"); assertEquals(expected, fMB1.subtract(f12CHF)); } public void testNormalize3() { // {[12 CHF][7 USD]} - {[12 CHF][3 USD]} == [4 USD] IMoney ms1 = MoneyBag.create(new Money(12, "CHF"), new Money(3, "USD")); Money expected = new Money(4, "USD"); assertEquals(expected, fMB1.subtract(ms1)); } public void testNormalize4() { // [12 CHF] - {[12 CHF][3 USD]} == [-3 USD] IMoney ms1 = MoneyBag.create(new Money(12, "CHF"), new Money(3, "USD")); Money expected = new Money(-3, "USD"); assertEquals(expected, f12CHF.subtract(ms1)); } public void testPrint() { assertEquals("[12 CHF]", f12CHF.toString()); } public void testSimpleAdd() { // [12 CHF] + [14 CHF] == [26 CHF] Money expected = new Money(26, "CHF"); assertEquals(expected, f12CHF.add(f14CHF)); } public void testSimpleBagAdd() { // [14 CHF] + {[12 CHF][7 USD]} == {[26 CHF][7 USD]} IMoney expected = MoneyBag.create(new Money(26, "CHF"), new Money(7, "USD")); assertEquals(expected, f14CHF.add(fMB1)); } public void testSimpleMultiply() { // [14 CHF] *2 == [28 CHF] Money expected = new Money(28, "CHF"); assertEquals(expected, f14CHF.multiply(2)); } public void testSimpleNegate() { // [14 CHF] negate == [-14 CHF] Money expected = new Money(-14, "CHF"); assertEquals(expected, f14CHF.negate()); } public void testSimpleSubtract() { // [14 CHF] - [12 CHF] == [2 CHF] Money expected = new Money(2, "CHF"); assertEquals(expected, f14CHF.subtract(f12CHF)); } }