src/test/java/net/pterodactylus/sone/core/FreenetInterfaceTest.java

   1 package net.pterodactylus.sone.core;
   2
   3 import static freenet.client.FetchException.FetchExceptionMode.ALL_DATA_NOT_FOUND;
   4 import static freenet.keys.InsertableClientSSK.createRandom;
   5 import static freenet.node.RequestStarter.INTERACTIVE_PRIORITY_CLASS;
   6 import static freenet.node.RequestStarter.PREFETCH_PRIORITY_CLASS;
   7 import static net.pterodactylus.sone.Matchers.delivers;
   8 import static net.pterodactylus.sone.TestUtil.setFinalField;
   9 import static org.hamcrest.MatcherAssert.assertThat;
  10 import static org.hamcrest.Matchers.is;
  11 import static org.hamcrest.Matchers.notNullValue;
  12 import static org.hamcrest.Matchers.nullValue;
  13 import static org.mockito.ArgumentCaptor.forClass;
  14 import static org.mockito.ArgumentMatchers.any;
  15 import static org.mockito.ArgumentMatchers.anyBoolean;
  16 import static org.mockito.ArgumentMatchers.anyLong;
  17 import static org.mockito.ArgumentMatchers.anyShort;
  18 import static org.mockito.ArgumentMatchers.eq;
  19 import static org.mockito.Mockito.doNothing;
  20 import static org.mockito.Mockito.mock;
  21 import static org.mockito.Mockito.never;
  22 import static org.mockito.Mockito.times;
  23 import static org.mockito.Mockito.verify;
  24 import static org.mockito.Mockito.verifyNoMoreInteractions;
  25 import static org.mockito.Mockito.when;
  26 import static org.mockito.Mockito.withSettings;
  27
  28 import java.io.IOException;
  29 import java.net.MalformedURLException;
  30 import java.util.HashMap;
  31
  32 import net.pterodactylus.sone.TestUtil;
  33 import net.pterodactylus.sone.core.FreenetInterface.BackgroundFetchCallback;
  34 import net.pterodactylus.sone.core.FreenetInterface.Callback;
  35 import net.pterodactylus.sone.core.FreenetInterface.Fetched;
  36 import net.pterodactylus.sone.core.FreenetInterface.InsertToken;
  37 import net.pterodactylus.sone.core.FreenetInterface.InsertTokenSupplier;
  38 import net.pterodactylus.sone.core.event.ImageInsertAbortedEvent;
  39 import net.pterodactylus.sone.core.event.ImageInsertFailedEvent;
  40 import net.pterodactylus.sone.core.event.ImageInsertFinishedEvent;
  41 import net.pterodactylus.sone.core.event.ImageInsertStartedEvent;
  42 import net.pterodactylus.sone.data.Image;
  43 import net.pterodactylus.sone.data.Sone;
  44 import net.pterodactylus.sone.data.TemporaryImage;
  45 import net.pterodactylus.sone.data.impl.ImageImpl;
  46
  47 import freenet.client.ClientMetadata;
  48 import freenet.client.FetchContext;
  49 import freenet.client.FetchException;
  50 import freenet.client.FetchException.FetchExceptionMode;
  51 import freenet.client.FetchResult;
  52 import freenet.client.HighLevelSimpleClient;
  53 import freenet.client.InsertBlock;
  54 import freenet.client.InsertContext;
  55 import freenet.client.InsertException;
  56 import freenet.client.InsertException.InsertExceptionMode;
  57 import freenet.client.async.ClientGetCallback;
  58 import freenet.client.async.ClientGetter;
  59 import freenet.client.async.ClientPutter;
  60 import freenet.client.async.USKCallback;
  61 import freenet.client.async.USKManager;
  62 import freenet.crypt.DummyRandomSource;
  63 import freenet.crypt.RandomSource;
  64 import freenet.keys.FreenetURI;
  65 import freenet.keys.InsertableClientSSK;
  66 import freenet.keys.USK;
  67 import freenet.node.Node;
  68 import freenet.node.NodeClientCore;
  69 import freenet.node.RequestClient;
  70 import freenet.support.Base64;
  71 import freenet.support.api.Bucket;
  72 import freenet.support.io.ArrayBucket;
  73 import freenet.support.io.ResumeFailedException;
  74
  75 import com.google.common.eventbus.EventBus;
  76 import org.junit.Before;
  77 import org.junit.Test;
  78 import org.mockito.ArgumentCaptor;
  79 import org.mockito.ArgumentMatchers;
  80
  81 /**
  82  * Unit test for {@link FreenetInterface}.
  83  *
  84  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  85  */
  86 public class FreenetInterfaceTest {
  87
  88         private final EventBus eventBus = mock(EventBus.class);
  89         private final Node node = mock(Node.class);
  90         private final NodeClientCore nodeClientCore = mock(NodeClientCore.class);
  91         private final HighLevelSimpleClient highLevelSimpleClient = mock(HighLevelSimpleClient.class, withSettings().extraInterfaces(RequestClient.class));
  92         private final RandomSource randomSource = new DummyRandomSource();
  93         private final USKManager uskManager = mock(USKManager.class);
  94         private FreenetInterface freenetInterface;
  95         private final Sone sone = mock(Sone.class);
  96         private final ArgumentCaptor<USKCallback> callbackCaptor = forClass(USKCallback.class);
  97         private final Image image = mock(Image.class);
  98         private InsertToken insertToken;
  99         private final Bucket bucket = mock(Bucket.class);
 100         private final ArgumentCaptor<ClientGetCallback> clientGetCallback = forClass(ClientGetCallback.class);
 101         private final FreenetURI uri = new FreenetURI("KSK@pgl.png");
 102         private final FetchResult fetchResult = mock(FetchResult.class);
 103         private final BackgroundFetchCallback backgroundFetchCallback = mock(BackgroundFetchCallback.class);
 104
 105         public FreenetInterfaceTest() throws MalformedURLException {
 106         }
 107
 108         @Before
 109         public void setupHighLevelSimpleClient() {
 110                 when(highLevelSimpleClient.getFetchContext()).thenReturn(mock(FetchContext.class));
 111         }
 112
 113         @Before
 114         public void setupFreenetInterface() {
 115                 when(nodeClientCore.makeClient(anyShort(), anyBoolean(), anyBoolean())).thenReturn(highLevelSimpleClient);
 116                 setFinalField(node, "clientCore", nodeClientCore);
 117                 setFinalField(node, "random", randomSource);
 118                 setFinalField(nodeClientCore, "uskManager", uskManager);
 119                 freenetInterface = new FreenetInterface(eventBus, node);
 120                 insertToken = freenetInterface.new InsertToken(image);
 121                 insertToken.setBucket(bucket);
 122         }
 123
 124         @Before
 125         public void setupSone() {
 126                 InsertableClientSSK insertSsk = createRandom(randomSource, "test-0");
 127                 when(sone.getId()).thenReturn(Base64.encode(insertSsk.getURI().getRoutingKey()));
 128                 when(sone.getRequestUri()).thenReturn(insertSsk.getURI().uskForSSK());
 129         }
 130
 131         @Before
 132         public void setupCallbackCaptorAndUskManager() {
 133                 doNothing().when(uskManager).subscribe(any(USK.class), callbackCaptor.capture(), anyBoolean(), any(RequestClient.class));
 134         }
 135
 136         @Test
 137         public void canFetchUri() throws MalformedURLException, FetchException {
 138                 FreenetURI freenetUri = new FreenetURI("KSK@GPLv3.txt");
 139                 FetchResult fetchResult = createFetchResult();
 140                 when(highLevelSimpleClient.fetch(freenetUri)).thenReturn(fetchResult);
 141                 Fetched fetched = freenetInterface.fetchUri(freenetUri);
 142                 assertThat(fetched, notNullValue());
 143                 assertThat(fetched.getFetchResult(), is(fetchResult));
 144                 assertThat(fetched.getFreenetUri(), is(freenetUri));
 145         }
 146
 147         @Test
 148         public void fetchFollowsRedirect() throws MalformedURLException, FetchException {
 149                 FreenetURI freenetUri = new FreenetURI("KSK@GPLv2.txt");
 150                 FreenetURI newFreenetUri = new FreenetURI("KSK@GPLv3.txt");
 151                 FetchResult fetchResult = createFetchResult();
 152                 FetchException fetchException = new FetchException(FetchExceptionMode.PERMANENT_REDIRECT, newFreenetUri);
 153                 when(highLevelSimpleClient.fetch(freenetUri)).thenThrow(fetchException);
 154                 when(highLevelSimpleClient.fetch(newFreenetUri)).thenReturn(fetchResult);
 155                 Fetched fetched = freenetInterface.fetchUri(freenetUri);
 156                 assertThat(fetched.getFetchResult(), is(fetchResult));
 157                 assertThat(fetched.getFreenetUri(), is(newFreenetUri));
 158         }
 159
 160         @Test
 161         public void fetchReturnsNullOnFetchExceptions() throws MalformedURLException, FetchException {
 162                 FreenetURI freenetUri = new FreenetURI("KSK@GPLv2.txt");
 163                 FetchException fetchException = new FetchException(ALL_DATA_NOT_FOUND);
 164                 when(highLevelSimpleClient.fetch(freenetUri)).thenThrow(fetchException);
 165                 Fetched fetched = freenetInterface.fetchUri(freenetUri);
 166                 assertThat(fetched, nullValue());
 167         }
 168
 169         private FetchResult createFetchResult() {
 170                 ClientMetadata clientMetadata = new ClientMetadata("text/plain");
 171                 Bucket bucket = new ArrayBucket("Some Data.".getBytes());
 172                 return new FetchResult(clientMetadata, bucket);
 173         }
 174
 175         @Test
 176         public void insertingAnImage() throws SoneException, InsertException, IOException {
 177                 TemporaryImage temporaryImage = new TemporaryImage("image-id");
 178                 temporaryImage.setMimeType("image/png");
 179                 byte[] imageData = new byte[] { 1, 2, 3, 4 };
 180                 temporaryImage.setImageData(imageData);
 181                 Image image = new ImageImpl("image-id");
 182                 InsertToken insertToken = freenetInterface.new InsertToken(image);
 183                 InsertContext insertContext = mock(InsertContext.class);
 184                 when(highLevelSimpleClient.getInsertContext(anyBoolean())).thenReturn(insertContext);
 185                 ClientPutter clientPutter = mock(ClientPutter.class);
 186                 ArgumentCaptor<InsertBlock> insertBlockCaptor = forClass(InsertBlock.class);
 187                 when(highLevelSimpleClient.insert(insertBlockCaptor.capture(), eq((String) null), eq(false), eq(insertContext), eq(insertToken), anyShort())).thenReturn(clientPutter);
 188                 freenetInterface.insertImage(temporaryImage, image, insertToken);
 189                 assertThat(insertBlockCaptor.getValue().getData().getInputStream(), delivers(new byte[] { 1, 2, 3, 4 }));
 190                 assertThat(TestUtil.<ClientPutter>getPrivateField(insertToken, "clientPutter"), is(clientPutter));
 191                 verify(eventBus).post(any(ImageInsertStartedEvent.class));
 192         }
 193
 194         @Test(expected = SoneInsertException.class)
 195         public void insertExceptionCausesASoneException() throws InsertException, SoneException, IOException {
 196                 TemporaryImage temporaryImage = new TemporaryImage("image-id");
 197                 temporaryImage.setMimeType("image/png");
 198                 byte[] imageData = new byte[] { 1, 2, 3, 4 };
 199                 temporaryImage.setImageData(imageData);
 200                 Image image = new ImageImpl("image-id");
 201                 InsertToken insertToken = freenetInterface.new InsertToken(image);
 202                 InsertContext insertContext = mock(InsertContext.class);
 203                 when(highLevelSimpleClient.getInsertContext(anyBoolean())).thenReturn(insertContext);
 204                 ArgumentCaptor<InsertBlock> insertBlockCaptor = forClass(InsertBlock.class);
 205                 when(highLevelSimpleClient.insert(insertBlockCaptor.capture(), eq((String) null), eq(false), eq(insertContext), eq(insertToken), anyShort())).thenThrow(InsertException.class);
 206                 freenetInterface.insertImage(temporaryImage, image, insertToken);
 207         }
 208
 209         @Test
 210         public void insertingADirectory() throws InsertException, SoneException {
 211                 FreenetURI freenetUri = mock(FreenetURI.class);
 212                 HashMap<String, Object> manifestEntries = new HashMap<String, Object>();
 213                 String defaultFile = "index.html";
 214                 FreenetURI resultingUri = mock(FreenetURI.class);
 215                 when(highLevelSimpleClient.insertManifest(eq(freenetUri), eq(manifestEntries), eq(defaultFile))).thenReturn(resultingUri);
 216                 assertThat(freenetInterface.insertDirectory(freenetUri, manifestEntries, defaultFile), is(resultingUri));
 217         }
 218
 219         @Test(expected = SoneException.class)
 220         public void insertExceptionIsForwardedAsSoneException() throws InsertException, SoneException {
 221                 when(highLevelSimpleClient.insertManifest(ArgumentMatchers.<FreenetURI>any(), ArgumentMatchers.<HashMap<String, Object>>any(), ArgumentMatchers.<String>any())).thenThrow(InsertException.class);
 222                 freenetInterface.insertDirectory(null, null, null);
 223         }
 224
 225         @Test
 226         public void soneWithWrongRequestUriWillNotBeSubscribed() throws MalformedURLException {
 227                 when(sone.getRequestUri()).thenReturn(new FreenetURI("KSK@GPLv3.txt"));
 228                 freenetInterface.registerUsk(new FreenetURI("KSK@GPLv3.txt"), null);
 229                 verify(uskManager, never()).subscribe(any(USK.class), any(USKCallback.class), anyBoolean(), any(RequestClient.class));
 230         }
 231
 232         @Test
 233         public void registeringAUsk() {
 234                 FreenetURI freenetUri = createRandom(randomSource, "test-0").getURI().uskForSSK();
 235                 Callback callback = mock(Callback.class);
 236                 freenetInterface.registerUsk(freenetUri, callback);
 237                 verify(uskManager).subscribe(any(USK.class), any(USKCallback.class), anyBoolean(), eq((RequestClient) highLevelSimpleClient));
 238         }
 239
 240         @Test
 241         public void registeringANonUskKeyWillNotBeSubscribed() throws MalformedURLException {
 242                 FreenetURI freenetUri = new FreenetURI("KSK@GPLv3.txt");
 243                 Callback callback = mock(Callback.class);
 244                 freenetInterface.registerUsk(freenetUri, callback);
 245                 verify(uskManager, never()).subscribe(any(USK.class), any(USKCallback.class), anyBoolean(), eq((RequestClient) highLevelSimpleClient));
 246         }
 247
 248         @Test
 249         public void registeringAnActiveUskWillSubscribeToItCorrectly() {
 250                 FreenetURI freenetUri = createRandom(randomSource, "test-0").getURI().uskForSSK();
 251                 final USKCallback uskCallback = mock(USKCallback.class);
 252                 freenetInterface.registerActiveUsk(freenetUri, uskCallback);
 253                 verify(uskManager).subscribe(any(USK.class), eq(uskCallback), eq(true), any(RequestClient.class));
 254         }
 255
 256         @Test
 257         public void registeringAnInactiveUskWillSubscribeToItCorrectly() {
 258                 FreenetURI freenetUri = createRandom(randomSource, "test-0").getURI().uskForSSK();
 259                 final USKCallback uskCallback = mock(USKCallback.class);
 260                 freenetInterface.registerPassiveUsk(freenetUri, uskCallback);
 261                 verify(uskManager).subscribe(any(USK.class), eq(uskCallback), eq(false), any(RequestClient.class));
 262         }
 263
 264         @Test
 265         public void registeringAnActiveNonUskWillNotSubscribeToAUsk()
 266         throws MalformedURLException {
 267                 FreenetURI freenetUri = createRandom(randomSource, "test-0").getURI();
 268                 freenetInterface.registerActiveUsk(freenetUri, null);
 269                 verify(uskManager, never()).subscribe(any(USK.class),
 270                                 any(USKCallback.class), anyBoolean(),
 271                                 eq((RequestClient) highLevelSimpleClient));
 272         }
 273
 274         @Test
 275         public void registeringAnInactiveNonUskWillNotSubscribeToAUsk()
 276         throws MalformedURLException {
 277                 FreenetURI freenetUri = createRandom(randomSource, "test-0").getURI();
 278                 freenetInterface.registerPassiveUsk(freenetUri, null);
 279                 verify(uskManager, never()).subscribe(any(USK.class),
 280                                 any(USKCallback.class), anyBoolean(),
 281                                 eq((RequestClient) highLevelSimpleClient));
 282         }
 283
 284         @Test
 285         public void unregisteringANotRegisteredUskDoesNothing() {
 286                 FreenetURI freenetURI = createRandom(randomSource, "test-0").getURI().uskForSSK();
 287                 freenetInterface.unregisterUsk(freenetURI);
 288                 verify(uskManager, never()).unsubscribe(any(USK.class), any(USKCallback.class));
 289         }
 290
 291         @Test
 292         public void unregisteringARegisteredUsk() {
 293                 FreenetURI freenetURI = createRandom(randomSource, "test-0").getURI().uskForSSK();
 294                 Callback callback = mock(Callback.class);
 295                 freenetInterface.registerUsk(freenetURI, callback);
 296                 freenetInterface.unregisterUsk(freenetURI);
 297                 verify(uskManager).unsubscribe(any(USK.class), any(USKCallback.class));
 298         }
 299
 300         @Test
 301         public void unregisteringANotRegisteredSoneDoesNothing() {
 302                 freenetInterface.unregisterUsk(sone);
 303                 verify(uskManager, never()).unsubscribe(any(USK.class), any(USKCallback.class));
 304         }
 305
 306         @Test
 307         public void unregisteringARegisteredSoneUnregistersTheSone()
 308         throws MalformedURLException {
 309                 freenetInterface.registerActiveUsk(sone.getRequestUri(), mock(USKCallback.class));
 310                 freenetInterface.unregisterUsk(sone);
 311                 verify(uskManager).unsubscribe(any(USK.class), any(USKCallback.class));
 312         }
 313
 314         @Test
 315         public void unregisteringASoneWithAWrongRequestKeyWillNotUnsubscribe() throws MalformedURLException {
 316                 when(sone.getRequestUri()).thenReturn(new FreenetURI("KSK@GPLv3.txt"));
 317                 freenetInterface.registerUsk(sone.getRequestUri(), null);
 318                 freenetInterface.unregisterUsk(sone);
 319                 verify(uskManager, never()).unsubscribe(any(USK.class), any(USKCallback.class));
 320         }
 321
 322         @Test
 323         public void callbackForNormalUskUsesDifferentPriorities() {
 324                 Callback callback = mock(Callback.class);
 325                 FreenetURI soneUri = createRandom(randomSource, "test-0").getURI().uskForSSK();
 326                 freenetInterface.registerUsk(soneUri, callback);
 327                 assertThat(callbackCaptor.getValue().getPollingPriorityNormal(), is(PREFETCH_PRIORITY_CLASS));
 328                 assertThat(callbackCaptor.getValue().getPollingPriorityProgress(), is(INTERACTIVE_PRIORITY_CLASS));
 329         }
 330
 331         @Test
 332         public void callbackForNormalUskForwardsImportantParameters() throws MalformedURLException {
 333                 Callback callback = mock(Callback.class);
 334                 FreenetURI uri = createRandom(randomSource, "test-0").getURI().uskForSSK();
 335                 freenetInterface.registerUsk(uri, callback);
 336                 USK key = mock(USK.class);
 337                 when(key.getURI()).thenReturn(uri);
 338                 callbackCaptor.getValue().onFoundEdition(3, key, null, false, (short) 0, null, true, true);
 339                 verify(callback).editionFound(eq(uri), eq(3L), eq(true), eq(true));
 340         }
 341
 342         @Test
 343         public void fetchedRetainsUriAndFetchResult() {
 344                 FreenetURI freenetUri = mock(FreenetURI.class);
 345                 FetchResult fetchResult = mock(FetchResult.class);
 346                 Fetched fetched = new Fetched(freenetUri, fetchResult);
 347                 assertThat(fetched.getFreenetUri(), is(freenetUri));
 348                 assertThat(fetched.getFetchResult(), is(fetchResult));
 349         }
 350
 351         @Test
 352         public void cancellingAnInsertWillFireImageInsertAbortedEvent() {
 353                 ClientPutter clientPutter = mock(ClientPutter.class);
 354                 insertToken.setClientPutter(clientPutter);
 355                 ArgumentCaptor<ImageInsertStartedEvent> imageInsertStartedEvent = forClass(ImageInsertStartedEvent.class);
 356                 verify(eventBus).post(imageInsertStartedEvent.capture());
 357                 assertThat(imageInsertStartedEvent.getValue().image(), is(image));
 358                 insertToken.cancel();
 359                 ArgumentCaptor<ImageInsertAbortedEvent> imageInsertAbortedEvent = forClass(ImageInsertAbortedEvent.class);
 360                 verify(eventBus, times(2)).post(imageInsertAbortedEvent.capture());
 361                 verify(bucket).free();
 362                 assertThat(imageInsertAbortedEvent.getValue().image(), is(image));
 363         }
 364
 365         @Test
 366         public void failureWithoutExceptionSendsFailedEvent() {
 367                 insertToken.onFailure(null, null);
 368                 ArgumentCaptor<ImageInsertFailedEvent> imageInsertFailedEvent = forClass(ImageInsertFailedEvent.class);
 369                 verify(eventBus).post(imageInsertFailedEvent.capture());
 370                 verify(bucket).free();
 371                 assertThat(imageInsertFailedEvent.getValue().image(), is(image));
 372                 assertThat(imageInsertFailedEvent.getValue().cause(), nullValue());
 373         }
 374
 375         @Test
 376         public void failureSendsFailedEventWithException() {
 377                 InsertException insertException = new InsertException(InsertExceptionMode.INTERNAL_ERROR, "Internal error", null);
 378                 insertToken.onFailure(insertException, null);
 379                 ArgumentCaptor<ImageInsertFailedEvent> imageInsertFailedEvent = forClass(ImageInsertFailedEvent.class);
 380                 verify(eventBus).post(imageInsertFailedEvent.capture());
 381                 verify(bucket).free();
 382                 assertThat(imageInsertFailedEvent.getValue().image(), is(image));
 383                 assertThat(imageInsertFailedEvent.getValue().cause(), is((Throwable) insertException));
 384         }
 385
 386         @Test
 387         public void failureBecauseCancelledByUserSendsAbortedEvent() {
 388                 InsertException insertException = new InsertException(InsertExceptionMode.CANCELLED, null);
 389                 insertToken.onFailure(insertException, null);
 390                 ArgumentCaptor<ImageInsertAbortedEvent> imageInsertAbortedEvent = forClass(ImageInsertAbortedEvent.class);
 391                 verify(eventBus).post(imageInsertAbortedEvent.capture());
 392                 verify(bucket).free();
 393                 assertThat(imageInsertAbortedEvent.getValue().image(), is(image));
 394         }
 395
 396         @Test
 397         public void ignoredMethodsDoNotThrowExceptions() throws ResumeFailedException {
 398                 insertToken.onResume(null);
 399                 insertToken.onFetchable(null);
 400                 insertToken.onGeneratedMetadata(null, null);
 401         }
 402
 403         @Test
 404         public void generatedUriIsPostedOnSuccess() {
 405                 FreenetURI generatedUri = mock(FreenetURI.class);
 406                 insertToken.onGeneratedURI(generatedUri, null);
 407                 insertToken.onSuccess(null);
 408                 ArgumentCaptor<ImageInsertFinishedEvent> imageInsertFinishedEvent = forClass(ImageInsertFinishedEvent.class);
 409                 verify(eventBus).post(imageInsertFinishedEvent.capture());
 410                 verify(bucket).free();
 411                 assertThat(imageInsertFinishedEvent.getValue().image(), is(image));
 412                 assertThat(imageInsertFinishedEvent.getValue().resultingUri(), is(generatedUri));
 413         }
 414
 415         @Test
 416         public void insertTokenSupplierSuppliesInsertTokens() {
 417                 InsertTokenSupplier insertTokenSupplier = freenetInterface.new InsertTokenSupplier();
 418                 assertThat(insertTokenSupplier.apply(image), notNullValue());
 419         }
 420
 421         @Test
 422         public void backgroundFetchCanBeStarted() throws Exception {
 423                 freenetInterface.startFetch(uri, backgroundFetchCallback);
 424                 verify(highLevelSimpleClient).fetch(eq(uri), anyLong(), any(ClientGetCallback.class), any(FetchContext.class), anyShort());
 425         }
 426
 427         @Test
 428         public void callbackOfBackgroundFetchIsNotifiedOnSuccess() throws Exception {
 429                 freenetInterface.startFetch(uri, backgroundFetchCallback);
 430                 verify(highLevelSimpleClient).fetch(eq(uri), anyLong(), clientGetCallback.capture(), any(FetchContext.class), anyShort());
 431                 when(fetchResult.getMimeType()).thenReturn("image/png");
 432                 when(fetchResult.asByteArray()).thenReturn(new byte[] { 1, 2, 3, 4, 5 });
 433                 clientGetCallback.getValue().onSuccess(fetchResult, mock(ClientGetter.class));
 434                 verify(backgroundFetchCallback).loaded(uri, "image/png", new byte[] { 1, 2, 3, 4, 5 });
 435                 verifyNoMoreInteractions(backgroundFetchCallback);
 436         }
 437
 438         @Test
 439         public void callbackOfBackgroundFetchIsNotifiedOnFailure() throws Exception {
 440                 freenetInterface.startFetch(uri, backgroundFetchCallback);
 441                 verify(highLevelSimpleClient).fetch(eq(uri), anyLong(), clientGetCallback.capture(), any(FetchContext.class), anyShort());
 442                 when(fetchResult.getMimeType()).thenReturn("image/png");
 443                 when(fetchResult.asByteArray()).thenReturn(new byte[] { 1, 2, 3, 4, 5 });
 444                 clientGetCallback.getValue().onFailure(new FetchException(ALL_DATA_NOT_FOUND), mock(ClientGetter.class));
 445                 verify(backgroundFetchCallback).failed(uri);
 446                 verifyNoMoreInteractions(backgroundFetchCallback);
 447         }
 448
 449         @Test
 450         public void callbackOfBackgroundFetchIsNotifiedAsFailureIfBucketCanNotBeLoaded() throws Exception {
 451                 freenetInterface.startFetch(uri, backgroundFetchCallback);
 452                 verify(highLevelSimpleClient).fetch(eq(uri), anyLong(), clientGetCallback.capture(), any(FetchContext.class), anyShort());
 453                 when(fetchResult.getMimeType()).thenReturn("image/png");
 454                 when(fetchResult.asByteArray()).thenThrow(IOException.class);
 455                 clientGetCallback.getValue().onSuccess(fetchResult, mock(ClientGetter.class));
 456                 verify(backgroundFetchCallback).failed(uri);
 457                 verifyNoMoreInteractions(backgroundFetchCallback);
 458         }
 459
 460 }