@Test
public void pickFruits() {
final FruitTree mangoTree = context.mock(FruitTree.class);
final Mango mango1 = new Mango();
final Mango mango2 = new Mango();
context.checking(
new Expectations() {
{
oneOf(mangoTree).pickFruit(with(any(Collection.class)));
will(
new VoidAction() {
public Object invoke(Invocation invocation) {
@SuppressWarnings({"unchecked"})
Collection<Fruit> fruits = (Collection<Fruit>) invocation.getParameter(0);
fruits.add(mango1);
fruits.add(mango2);
return null;
}
});
}
});
Collection<Fruit> fruits = new FruitPicker().pickFruits(asList(mangoTree));
assertEquals(asList(mango1, mango2), fruits);
}
@Test
public void willAnnounceItHasFinishedIfPriceGoesAboveMaximum() {
context.checking(
new Expectations() {
{
exactly(1).of(listener).sniperFinished(sniper);
}
});
sniper.bidAccepted(unbeatableBid);
}
@Test
public void willLimitBidToMaximum() throws Exception {
context.checking(
new Expectations() {
{
exactly(1).of(auction).bid(maximumBid);
}
});
sniper.bidAccepted(maximumBid.subtract(new Money(1)));
}
@Test
public void willNotBidPriceGreaterThanMaximum() throws Exception {
context.checking(
new Expectations() {
{
ignoring(listener);
never(auction).bid(with(any(Money.class)));
}
});
sniper.bidAccepted(unbeatableBid);
}
@Test
public void triesToBeatTheLatestHighestBid() throws Exception {
final Money expectedBid = beatableBid.add(increment);
context.checking(
new Expectations() {
{
oneOf(auction).bid(expectedBid);
}
});
sniper.bidAccepted(beatableBid);
}
@Test
public void catchesExceptionsAndReportsThemToErrorListener() throws Exception {
final AuctionException exception = new AuctionException("test");
context.checking(
new Expectations() {
{
allowing(auction).bid(with(any(Money.class)));
will(throwException(exception));
exactly(1).of(listener).sniperBidFailed(sniper, exception);
}
});
sniper.bidAccepted(beatableBid);
}
@Test
public void modelBlowsUpInAnUnavoidableWay() throws Exception {
mockery.checking(
new Expectations() {
{
allowing(browseTransactionsModel).findAllTransactions();
will(throwException(new InternalStorageException()));
}
});
pressExportAllTransactionsButton(browseTransactionsActivity);
assertLastToastMatchesRegex(
"Something strange just happened. Try again. You might need to reinstall the "
+ "application. I feel embarrassed and ashamed.");
}
@Test
public void exportWhateverTheModelProvides() throws Exception {
final List<Transaction> anyNonEmptyListOfTransactions =
ObjectMother.anyNonEmptyListOfTransactions();
mockery.checking(
new Expectations() {
{
allowing(browseTransactionsModel).findAllTransactions();
will(returnValue(anyNonEmptyListOfTransactions));
ignoring(androidDevicePublicStorageGateway);
oneOf(exportAllTransactionsAction).execute(with(anyNonEmptyListOfTransactions));
}
});
pressExportAllTransactionsButton(browseTransactionsActivity);
}
@Test
public void mediaNotAvailable() throws Exception {
mockery.checking(
new Expectations() {
{
allowing(browseTransactionsModel).findAllTransactions();
allowing(androidDevicePublicStorageGateway).findPublicExternalStorageDirectory();
will(throwException(new PublicStorageMediaNotAvailableException()));
never(exportAllTransactionsAction);
}
});
pressExportAllTransactionsButton(browseTransactionsActivity);
assertLastToastMatchesRegex(
"No place to which to export the transactions. Insert an SD card or connect an "
+ "external storage device and try again.");
}
@Test
public void exportActionBlowsUpInAnUnavoidableWay() throws Exception {
mockery.checking(
new Expectations() {
{
// SMELL How can I ignore these irrelevant details?
ignoring(browseTransactionsModel);
ignoring(androidDevicePublicStorageGateway);
allowing(exportAllTransactionsAction).execute(with(any(List.class)));
will(throwException(new InternalStorageException()));
}
});
pressExportAllTransactionsButton(browseTransactionsActivity);
assertLastToastMatchesRegex(
"Something strange just happened. Try again. You might need to reinstall the "
+ "application. I feel embarrassed and ashamed.");
}
@Test
public void mediaNotWritable() throws Exception {
mockery.checking(
new Expectations() {
{
allowing(browseTransactionsModel).findAllTransactions();
allowing(androidDevicePublicStorageGateway).findPublicExternalStorageDirectory();
will(
throwException(
new PublicStorageMediaNotWritableException(
new File("/mnt/sdcard/TrackEveryPenny.csv"))));
never(exportAllTransactionsAction);
}
});
pressExportAllTransactionsButton(browseTransactionsActivity);
assertLastToastMatchesRegex(
"Permission denied trying to export the transactions to file "
+ "/mnt/sdcard/TrackEveryPenny.csv");
}
@Test
public void happyPath() throws Exception {
final Collection<Object> anyValidNonTrivialCollectionOfTransactions =
Lists.newArrayList(new Object(), new Object(), new Object());
mockery.checking(
new Expectations() {
{
allowing(browseTransactionsModel).findAllTransactions();
will(returnValue(anyValidNonTrivialCollectionOfTransactions));
// SMELL Irrelevant detail
ignoring(androidDevicePublicStorageGateway).findPublicExternalStorageDirectory();
allowing(exportAllTransactionsAction).execute(with(any(List.class)));
// succeeds by not throwing an exception
}
});
pressExportAllTransactionsButton(browseTransactionsActivity);
assertLastToastMatchesRegex("Exported all transactions to (.+)\\.csv");
}
@RunWith(RobolectricTestRunner.class)
public class HandleExportAllTransactionsTest {
private Mockery mockery = new Mockery();
private final BrowseTransactionsModel browseTransactionsModel =
mockery.mock(BrowseTransactionsModel.class);
private final ExportAllTransactionsAction exportAllTransactionsAction =
mockery.mock(ExportAllTransactionsAction.class);
private final AndroidDevicePublicStorageGateway androidDevicePublicStorageGateway =
mockery.mock(AndroidDevicePublicStorageGateway.class);
private final BrowseTransactionsActivity browseTransactionsActivity =
new BrowseTransactionsActivity(
null,
exportAllTransactionsAction,
androidDevicePublicStorageGateway,
browseTransactionsModel);
@Before
public void initializeActivity() {
browseTransactionsActivity.onCreate(null);
browseTransactionsActivity.setCollaborators(
exportAllTransactionsAction, androidDevicePublicStorageGateway, browseTransactionsModel);
}
@Test
public void happyPath() throws Exception {
final Collection<Object> anyValidNonTrivialCollectionOfTransactions =
Lists.newArrayList(new Object(), new Object(), new Object());
mockery.checking(
new Expectations() {
{
allowing(browseTransactionsModel).findAllTransactions();
will(returnValue(anyValidNonTrivialCollectionOfTransactions));
// SMELL Irrelevant detail
ignoring(androidDevicePublicStorageGateway).findPublicExternalStorageDirectory();
allowing(exportAllTransactionsAction).execute(with(any(List.class)));
// succeeds by not throwing an exception
}
});
pressExportAllTransactionsButton(browseTransactionsActivity);
assertLastToastMatchesRegex("Exported all transactions to (.+)\\.csv");
}
@Test
public void mediaNotAvailable() throws Exception {
mockery.checking(
new Expectations() {
{
allowing(browseTransactionsModel).findAllTransactions();
allowing(androidDevicePublicStorageGateway).findPublicExternalStorageDirectory();
will(throwException(new PublicStorageMediaNotAvailableException()));
never(exportAllTransactionsAction);
}
});
pressExportAllTransactionsButton(browseTransactionsActivity);
assertLastToastMatchesRegex(
"No place to which to export the transactions. Insert an SD card or connect an "
+ "external storage device and try again.");
}
@Test
public void mediaNotWritable() throws Exception {
mockery.checking(
new Expectations() {
{
allowing(browseTransactionsModel).findAllTransactions();
allowing(androidDevicePublicStorageGateway).findPublicExternalStorageDirectory();
will(
throwException(
new PublicStorageMediaNotWritableException(
new File("/mnt/sdcard/TrackEveryPenny.csv"))));
never(exportAllTransactionsAction);
}
});
pressExportAllTransactionsButton(browseTransactionsActivity);
assertLastToastMatchesRegex(
"Permission denied trying to export the transactions to file "
+ "/mnt/sdcard/TrackEveryPenny.csv");
}
@Test
public void modelBlowsUpInAnUnavoidableWay() throws Exception {
mockery.checking(
new Expectations() {
{
allowing(browseTransactionsModel).findAllTransactions();
will(throwException(new InternalStorageException()));
}
});
pressExportAllTransactionsButton(browseTransactionsActivity);
assertLastToastMatchesRegex(
"Something strange just happened. Try again. You might need to reinstall the "
+ "application. I feel embarrassed and ashamed.");
}
@Test
public void exportActionBlowsUpInAnUnavoidableWay() throws Exception {
mockery.checking(
new Expectations() {
{
// SMELL How can I ignore these irrelevant details?
ignoring(browseTransactionsModel);
ignoring(androidDevicePublicStorageGateway);
allowing(exportAllTransactionsAction).execute(with(any(List.class)));
will(throwException(new InternalStorageException()));
}
});
pressExportAllTransactionsButton(browseTransactionsActivity);
assertLastToastMatchesRegex(
"Something strange just happened. Try again. You might need to reinstall the "
+ "application. I feel embarrassed and ashamed.");
}
@Test
public void exportWhateverTheModelProvides() throws Exception {
final List<Transaction> anyNonEmptyListOfTransactions =
ObjectMother.anyNonEmptyListOfTransactions();
mockery.checking(
new Expectations() {
{
allowing(browseTransactionsModel).findAllTransactions();
will(returnValue(anyNonEmptyListOfTransactions));
ignoring(androidDevicePublicStorageGateway);
oneOf(exportAllTransactionsAction).execute(with(anyNonEmptyListOfTransactions));
}
});
pressExportAllTransactionsButton(browseTransactionsActivity);
}
private void pressExportAllTransactionsButton(
BrowseTransactionsActivity browseTransactionsActivity) {
browseTransactionsActivity.exportAllTransactions(
browseTransactionsActivity.findViewById(R.id.exportAllTransactionsButton));
}
public static void assertLastToastMatchesRegex(String patternText) {
ShadowHandler.idleMainLooper();
assertThat(ShadowToast.getTextOfLatestToast(), matches(Pattern.compile(patternText)));
}
}
/**
* This and other classes in this package (except, naturally, AuctionSniper_JMockit_Test) are based
* on the original source code available <a
* href="http://svn.jmock.codehaus.org/browse/jmock/trunk/jmock2/example/org/jmock/example/sniper">here</a>.
* Small modifications were made to simplify the code, without compromising the original design.
*/
@RunWith(JMock.class)
public final class AuctionSniperTest {
final Mockery context = new JUnit4Mockery();
final Money increment = new Money(2);
final Money maximumBid = new Money(20);
final Money beatableBid = new Money(10);
final Money unbeatableBid = maximumBid.add(new Money(1));
final Auction auction = context.mock(Auction.class);
final AuctionSniperListener listener = context.mock(AuctionSniperListener.class, "listener");
final AuctionSniper sniper = new AuctionSniper(auction, increment, maximumBid, listener);
@Test
public void triesToBeatTheLatestHighestBid() throws Exception {
final Money expectedBid = beatableBid.add(increment);
context.checking(
new Expectations() {
{
oneOf(auction).bid(expectedBid);
}
});
sniper.bidAccepted(beatableBid);
}
@Test
public void willNotBidPriceGreaterThanMaximum() throws Exception {
context.checking(
new Expectations() {
{
ignoring(listener);
never(auction).bid(with(any(Money.class)));
}
});
sniper.bidAccepted(unbeatableBid);
}
@Test
public void willLimitBidToMaximum() throws Exception {
context.checking(
new Expectations() {
{
exactly(1).of(auction).bid(maximumBid);
}
});
sniper.bidAccepted(maximumBid.subtract(new Money(1)));
}
@Test
public void willAnnounceItHasFinishedIfPriceGoesAboveMaximum() {
context.checking(
new Expectations() {
{
exactly(1).of(listener).sniperFinished(sniper);
}
});
sniper.bidAccepted(unbeatableBid);
}
@Test
public void catchesExceptionsAndReportsThemToErrorListener() throws Exception {
final AuctionException exception = new AuctionException("test");
context.checking(
new Expectations() {
{
allowing(auction).bid(with(any(Money.class)));
will(throwException(exception));
exactly(1).of(listener).sniperBidFailed(sniper, exception);
}
});
sniper.bidAccepted(beatableBid);
}
}