之后，我们创建一个junit测试代码MoneyTest.java，来测试Money.java和MoneyBag.java类，这里我也把它放在src目录下;如果企业应用，你就要把目录分析的详细些，例如src子目录下放所有的java源代码，test子目录下放所有的junit测试代码：
import junit.framework.*;
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);
}
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));
}
}
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);
}
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));
}
}
