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.test.Matchers.delivers;
   8 import static net.pterodactylus.sone.test.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.core.FreenetInterface.BackgroundFetchCallback;
  33 import net.pterodactylus.sone.core.FreenetInterface.Callback;
  34 import net.pterodactylus.sone.core.FreenetInterface.InsertToken;
  35 import net.pterodactylus.sone.core.FreenetInterface.InsertTokenSupplier;
  36 import net.pterodactylus.sone.core.event.ImageInsertAbortedEvent;
  37 import net.pterodactylus.sone.core.event.ImageInsertFailedEvent;
  38 import net.pterodactylus.sone.core.event.ImageInsertFinishedEvent;
  39 import net.pterodactylus.sone.core.event.ImageInsertStartedEvent;
  40 import net.pterodactylus.sone.data.Image;
  41 import net.pterodactylus.sone.data.Sone;
  42 import net.pterodactylus.sone.data.TemporaryImage;
  43 import net.pterodactylus.sone.data.impl.ImageImpl;
  44 import net.pterodactylus.sone.test.TestUtil;
  45
  46 import freenet.client.ClientMetadata;
  47 import freenet.client.FetchContext;
  48 import freenet.client.FetchException;
  49 import freenet.client.FetchException.FetchExceptionMode;
  50 import freenet.client.FetchResult;
  51 import freenet.client.HighLevelSimpleClient;
  52 import freenet.client.InsertBlock;
  53 import freenet.client.InsertContext;
  54 import freenet.client.InsertException;
  55 import freenet.client.InsertException.InsertExceptionMode;
  56 import freenet.client.Metadata;
  57 import freenet.client.async.ClientContext;
  58 import freenet.client.async.ClientGetCallback;
  59 import freenet.client.async.ClientGetter;
  60 import freenet.client.async.ClientPutter;
  61 import freenet.client.async.SnoopMetadata;
  62 import freenet.client.async.USKCallback;
  63 import freenet.client.async.USKManager;
  64 import freenet.crypt.DummyRandomSource;
  65 import freenet.crypt.RandomSource;
  66 import freenet.keys.FreenetURI;
  67 import freenet.keys.InsertableClientSSK;
  68 import freenet.keys.USK;
  69 import freenet.node.Node;
  70 import freenet.node.NodeClientCore;
  71 import freenet.node.RequestClient;
  72 import freenet.support.Base64;
  73 import freenet.support.api.Bucket;
  74 import freenet.support.io.ArrayBucket;
  75 import freenet.support.io.ResumeFailedException;
  76
  77 import com.google.common.eventbus.EventBus;
  78 import org.hamcrest.*;
  79 import org.junit.Before;
  80 import org.junit.Test;
  81 import org.mockito.ArgumentCaptor;
  82 import org.mockito.ArgumentMatchers;
  83
  84 /**
  85  * Unit test for {@link FreenetInterface}.
  86  */
  87 public class FreenetInterfaceTest {
  88
  89         private final EventBus eventBus = mock(EventBus.class);
  90         private final Node node = mock(Node.class);
  91         private final NodeClientCore nodeClientCore = mock(NodeClientCore.class);
  92         private final HighLevelSimpleClient highLevelSimpleClient = mock(HighLevelSimpleClient.class, withSettings().extraInterfaces(RequestClient.class));
  93         private final RandomSource randomSource = new DummyRandomSource();
  94         private final USKManager uskManager = mock(USKManager.class);
  95         private FreenetInterface freenetInterface;
  96         private final Sone sone = mock(Sone.class);
  97         private final ArgumentCaptor<USKCallback> callbackCaptor = forClass(USKCallback.class);
  98         private final Image image = mock(Image.class);
  99         private InsertToken insertToken;
 100         private final Bucket bucket = mock(Bucket.class);
 101         private final ArgumentCaptor<ClientGetCallback> clientGetCallback = forClass(ClientGetCallback.class);
 102         private final FreenetURI uri = new FreenetURI("KSK@pgl.png");
 103         private final FetchResult fetchResult = mock(FetchResult.class);
 104         private final BackgroundFetchCallback backgroundFetchCallback = mock(BackgroundFetchCallback.class);
 105         private final ClientGetter clientGetter = mock(ClientGetter.class);
 106
 107         public FreenetInterfaceTest() throws MalformedURLException {
 108         }
 109
 110         @Before
 111         public void setupHighLevelSimpleClient() throws Exception {
 112                 when(highLevelSimpleClient.getFetchContext()).thenReturn(mock(FetchContext.class));
 113                 when(highLevelSimpleClient.fetch(eq(uri), anyLong(), any(ClientGetCallback.class), any(FetchContext.class), anyShort())).thenReturn( clientGetter);
 114         }
 115
 116         @Before
 117         public void setupFreenetInterface() {
 118                 when(nodeClientCore.makeClient(anyShort(), anyBoolean(), anyBoolean())).thenReturn(highLevelSimpleClient);
 119                 setFinalField(node, "clientCore", nodeClientCore);
 120                 setFinalField(node, "random", randomSource);
 121                 setFinalField(nodeClientCore, "uskManager", uskManager);
 122                 setFinalField(nodeClientCore, "clientContext", mock(ClientContext.class));
 123                 freenetInterface = new FreenetInterface(eventBus, node);
 124                 insertToken = freenetInterface.new InsertToken(image);
 125                 insertToken.setBucket(bucket);
 126         }
 127
 128         @Before
 129         public void setupSone() {
 130                 InsertableClientSSK insertSsk = createRandom(randomSource, "test-0");
 131                 when(sone.getId()).thenReturn(Base64.encode(insertSsk.getURI().getRoutingKey()));
 132                 when(sone.getRequestUri()).thenReturn(insertSsk.getURI().uskForSSK());
 133         }
 134
 135         @Before
 136         public void setupCallbackCaptorAndUskManager() {
 137                 doNothing().when(uskManager).subscribe(any(USK.class), callbackCaptor.capture(), anyBoolean(), any(RequestClient.class));
 138         }
 139
 140         @Test
 141         public void canFetchUri() throws MalformedURLException, FetchException {
 142                 FreenetURI freenetUri = new FreenetURI("KSK@GPLv3.txt");
 143                 FetchResult fetchResult = createFetchResult();
 144                 when(highLevelSimpleClient.fetch(freenetUri)).thenReturn(fetchResult);
 145                 Fetched fetched = freenetInterface.fetchUri(freenetUri);
 146                 assertThat(fetched, notNullValue());
 147                 assertThat(fetched.getFetchResult(), is(fetchResult));
 148                 assertThat(fetched.getFreenetUri(), is(freenetUri));
 149         }
 150
 151         @Test
 152         public void fetchFollowsRedirect() throws MalformedURLException, FetchException {
 153                 FreenetURI freenetUri = new FreenetURI("KSK@GPLv2.txt");
 154                 FreenetURI newFreenetUri = new FreenetURI("KSK@GPLv3.txt");
 155                 FetchResult fetchResult = createFetchResult();
 156                 FetchException fetchException = new FetchException(FetchExceptionMode.PERMANENT_REDIRECT, newFreenetUri);
 157                 when(highLevelSimpleClient.fetch(freenetUri)).thenThrow(fetchException);
 158                 when(highLevelSimpleClient.fetch(newFreenetUri)).thenReturn(fetchResult);
 159                 Fetched fetched = freenetInterface.fetchUri(freenetUri);
 160                 assertThat(fetched.getFetchResult(), is(fetchResult));
 161                 assertThat(fetched.getFreenetUri(), is(newFreenetUri));
 162         }
 163
 164         @Test
 165         public void fetchReturnsNullOnFetchExceptions() throws MalformedURLException, FetchException {
 166                 FreenetURI freenetUri = new FreenetURI("KSK@GPLv2.txt");
 167                 FetchException fetchException = new FetchException(ALL_DATA_NOT_FOUND);
 168                 when(highLevelSimpleClient.fetch(freenetUri)).thenThrow(fetchException);
 169                 Fetched fetched = freenetInterface.fetchUri(freenetUri);
 170                 assertThat(fetched, nullValue());
 171         }
 172
 173         private FetchResult createFetchResult() {
 174                 ClientMetadata clientMetadata = new ClientMetadata("text/plain");
 175                 Bucket bucket = new ArrayBucket("Some Data.".getBytes());
 176                 return new FetchResult(clientMetadata, bucket);
 177         }
 178
 179         @Test
 180         public void insertingAnImage() throws SoneException, InsertException, IOException {
 181                 TemporaryImage temporaryImage = new TemporaryImage("image-id");
 182                 temporaryImage.setMimeType("image/png");
 183                 byte[] imageData = new byte[] { 1, 2, 3, 4 };
 184                 temporaryImage.setImageData(imageData);
 185                 Image image = new ImageImpl("image-id");
 186                 InsertToken insertToken = freenetInterface.new InsertToken(image);
 187                 InsertContext insertContext = mock(InsertContext.class);
 188                 when(highLevelSimpleClient.getInsertContext(anyBoolean())).thenReturn(insertContext);
 189                 ClientPutter clientPutter = mock(ClientPutter.class);
 190                 ArgumentCaptor<InsertBlock> insertBlockCaptor = forClass(InsertBlock.class);
 191                 when(highLevelSimpleClient.insert(insertBlockCaptor.capture(), eq((String) null), eq(false), eq(insertContext), eq(insertToken), anyShort())).thenReturn(clientPutter);
 192                 freenetInterface.insertImage(temporaryImage, image, insertToken);
 193                 assertThat(insertBlockCaptor.getValue().getData().getInputStream(), delivers(new byte[] { 1, 2, 3, 4 }));
 194                 assertThat(TestUtil.<ClientPutter>getPrivateField(insertToken, "clientPutter"), is(clientPutter));
 195                 verify(eventBus).post(any(ImageInsertStartedEvent.class));
 196         }
 197
 198         @Test(expected = SoneInsertException.class)
 199         public void insertExceptionCausesASoneException() throws InsertException, SoneException, IOException {
 200                 TemporaryImage temporaryImage = new TemporaryImage("image-id");
 201                 temporaryImage.setMimeType("image/png");
 202                 byte[] imageData = new byte[] { 1, 2, 3, 4 };
 203                 temporaryImage.setImageData(imageData);
 204                 Image image = new ImageImpl("image-id");
 205                 InsertToken insertToken = freenetInterface.new InsertToken(image);
 206                 InsertContext insertContext = mock(InsertContext.class);
 207                 when(highLevelSimpleClient.getInsertContext(anyBoolean())).thenReturn(insertContext);
 208                 ArgumentCaptor<InsertBlock> insertBlockCaptor = forClass(InsertBlock.class);
 209                 when(highLevelSimpleClient.insert(insertBlockCaptor.capture(), eq((String) null), eq(false), eq(insertContext), eq(insertToken), anyShort())).thenThrow(InsertException.class);
 210                 freenetInterface.insertImage(temporaryImage, image, insertToken);
 211         }
 212
 213         @Test
 214         public void insertingADirectory() throws InsertException, SoneException {
 215                 FreenetURI freenetUri = mock(FreenetURI.class);
 216                 HashMap<String, Object> manifestEntries = new HashMap<>();
 217                 String defaultFile = "index.html";
 218                 FreenetURI resultingUri = mock(FreenetURI.class);
 219                 when(highLevelSimpleClient.insertManifest(eq(freenetUri), eq(manifestEntries), eq(defaultFile))).thenReturn(resultingUri);
 220                 assertThat(freenetInterface.insertDirectory(freenetUri, manifestEntries, defaultFile), is(resultingUri));
 221         }
 222
 223         @Test(expected = SoneException.class)
 224         public void insertExceptionIsForwardedAsSoneException() throws InsertException, SoneException {
 225                 when(highLevelSimpleClient.insertManifest(ArgumentMatchers.<FreenetURI>any(), ArgumentMatchers.<HashMap<String, Object>>any(), ArgumentMatchers.<String>any())).thenThrow(InsertException.class);
 226                 freenetInterface.insertDirectory(null, null, null);
 227         }
 228
 229         @Test
 230         public void soneWithWrongRequestUriWillNotBeSubscribed() throws MalformedURLException {
 231                 when(sone.getRequestUri()).thenReturn(new FreenetURI("KSK@GPLv3.txt"));
 232                 freenetInterface.registerUsk(new FreenetURI("KSK@GPLv3.txt"), null);
 233                 verify(uskManager, never()).subscribe(any(USK.class), any(USKCallback.class), anyBoolean(), any(RequestClient.class));
 234         }
 235
 236         @Test
 237         public void registeringAUsk() {
 238                 FreenetURI freenetUri = createRandom(randomSource, "test-0").getURI().uskForSSK();
 239                 Callback callback = mock(Callback.class);
 240                 freenetInterface.registerUsk(freenetUri, callback);
 241                 verify(uskManager).subscribe(any(USK.class), any(USKCallback.class), anyBoolean(), any(RequestClient.class));
 242         }
 243
 244         @Test
 245         public void registeringANonUskKeyWillNotBeSubscribed() throws MalformedURLException {
 246                 FreenetURI freenetUri = new FreenetURI("KSK@GPLv3.txt");
 247                 Callback callback = mock(Callback.class);
 248                 freenetInterface.registerUsk(freenetUri, callback);
 249                 verify(uskManager, never()).subscribe(any(USK.class), any(USKCallback.class), anyBoolean(), any(RequestClient.class));
 250         }
 251
 252         @Test
 253         public void registeringAnActiveUskWillSubscribeToItCorrectly() {
 254                 FreenetURI freenetUri = createRandom(randomSource, "test-0").getURI().uskForSSK();
 255                 final USKCallback uskCallback = mock(USKCallback.class);
 256                 freenetInterface.registerActiveUsk(freenetUri, uskCallback);
 257                 verify(uskManager).subscribe(any(USK.class), eq(uskCallback), eq(true), any(RequestClient.class));
 258         }
 259
 260         @Test
 261         public void registeringAnInactiveUskWillSubscribeToItCorrectly() {
 262                 FreenetURI freenetUri = createRandom(randomSource, "test-0").getURI().uskForSSK();
 263                 final USKCallback uskCallback = mock(USKCallback.class);
 264                 freenetInterface.registerPassiveUsk(freenetUri, uskCallback);
 265                 verify(uskManager).subscribe(any(USK.class), eq(uskCallback), eq(false), any(RequestClient.class));
 266         }
 267
 268         @Test
 269         public void registeringAnActiveNonUskWillNotSubscribeToAUsk()
 270         throws MalformedURLException {
 271                 FreenetURI freenetUri = createRandom(randomSource, "test-0").getURI();
 272                 freenetInterface.registerActiveUsk(freenetUri, null);
 273                 verify(uskManager, never()).subscribe(any(USK.class), any(USKCallback.class), anyBoolean(), any(RequestClient.class));
 274         }
 275
 276         @Test
 277         public void registeringAnInactiveNonUskWillNotSubscribeToAUsk()
 278         throws MalformedURLException {
 279                 FreenetURI freenetUri = createRandom(randomSource, "test-0").getURI();
 280                 freenetInterface.registerPassiveUsk(freenetUri, null);
 281                 verify(uskManager, never()).subscribe(any(USK.class), any(USKCallback.class), anyBoolean(), any(RequestClient.class));
 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().getImage(), 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().getImage(), is(image));
 363         }
 364
 365         @Test
 366         public void failureWithoutExceptionSendsFailedEvent() {
 367                 InsertException insertException = new InsertException(mock(InsertException.class));
 368                 insertToken.onFailure(insertException, null);
 369                 ArgumentCaptor<ImageInsertFailedEvent> imageInsertFailedEvent = forClass(ImageInsertFailedEvent.class);
 370                 verify(eventBus).post(imageInsertFailedEvent.capture());
 371                 verify(bucket).free();
 372                 assertThat(imageInsertFailedEvent.getValue().getImage(), is(image));
 373                 assertThat(imageInsertFailedEvent.getValue().getCause(), Matchers.<Throwable>is(insertException));
 374         }
 375
 376         @Test
 377         public void failureSendsFailedEventWithException() {
 378                 InsertException insertException = new InsertException(InsertExceptionMode.INTERNAL_ERROR, "Internal error", null);
 379                 insertToken.onFailure(insertException, null);
 380                 ArgumentCaptor<ImageInsertFailedEvent> imageInsertFailedEvent = forClass(ImageInsertFailedEvent.class);
 381                 verify(eventBus).post(imageInsertFailedEvent.capture());
 382                 verify(bucket).free();
 383                 assertThat(imageInsertFailedEvent.getValue().getImage(), is(image));
 384                 assertThat(imageInsertFailedEvent.getValue().getCause(), is((Throwable) insertException));
 385         }
 386
 387         @Test
 388         public void failureBecauseCancelledByUserSendsAbortedEvent() {
 389                 InsertException insertException = new InsertException(InsertExceptionMode.CANCELLED, null);
 390                 insertToken.onFailure(insertException, null);
 391                 ArgumentCaptor<ImageInsertAbortedEvent> imageInsertAbortedEvent = forClass(ImageInsertAbortedEvent.class);
 392                 verify(eventBus).post(imageInsertAbortedEvent.capture());
 393                 verify(bucket).free();
 394                 assertThat(imageInsertAbortedEvent.getValue().getImage(), is(image));
 395         }
 396
 397         @Test
 398         public void ignoredMethodsDoNotThrowExceptions() throws ResumeFailedException {
 399                 insertToken.onResume(null);
 400                 insertToken.onFetchable(null);
 401                 insertToken.onGeneratedMetadata(null, null);
 402         }
 403
 404         @Test
 405         public void generatedUriIsPostedOnSuccess() {
 406                 FreenetURI generatedUri = mock(FreenetURI.class);
 407                 insertToken.onGeneratedURI(generatedUri, null);
 408                 insertToken.onSuccess(null);
 409                 ArgumentCaptor<ImageInsertFinishedEvent> imageInsertFinishedEvent = forClass(ImageInsertFinishedEvent.class);
 410                 verify(eventBus).post(imageInsertFinishedEvent.capture());
 411                 verify(bucket).free();
 412                 assertThat(imageInsertFinishedEvent.getValue().getImage(), is(image));
 413                 assertThat(imageInsertFinishedEvent.getValue().getResultingUri(), is(generatedUri));
 414         }
 415
 416         @Test
 417         public void insertTokenSupplierSuppliesInsertTokens() {
 418                 InsertTokenSupplier insertTokenSupplier = new InsertTokenSupplier(freenetInterface);
 419                 assertThat(insertTokenSupplier.apply(image), notNullValue());
 420         }
 421
 422         @Test
 423         public void backgroundFetchCanBeStarted() throws Exception {
 424                 freenetInterface.startFetch(uri, backgroundFetchCallback);
 425                 verify(highLevelSimpleClient).fetch(eq(uri), anyLong(), any(ClientGetCallback.class), any(FetchContext.class), anyShort());
 426         }
 427
 428         @Test
 429         public void backgroundFetchRegistersSnoopAndRestartsTheRequest() throws Exception {
 430                 freenetInterface.startFetch(uri, backgroundFetchCallback);
 431                 verify(clientGetter).setMetaSnoop(any(SnoopMetadata.class));
 432                 verify(clientGetter).restart(eq(uri), anyBoolean(), any(ClientContext.class));
 433         }
 434
 435         @Test
 436         public void requestIsNotCancelledForImageMimeType() {
 437                 verifySnoopCancelsRequestForMimeType("image/png", false);
 438                 verify(backgroundFetchCallback, never()).failed(uri);
 439         }
 440
 441         @Test
 442         public void requestIsCancelledForNullMimeType() {
 443                 verifySnoopCancelsRequestForMimeType(null, true);
 444                 verify(backgroundFetchCallback, never()).shouldCancel(eq(uri), ArgumentMatchers.<String>any(), anyLong());
 445                 verify(backgroundFetchCallback).failed(uri);
 446         }
 447
 448         @Test
 449         public void requestIsCancelledForVideoMimeType() {
 450                 verifySnoopCancelsRequestForMimeType("video/mkv", true);
 451                 verify(backgroundFetchCallback).failed(uri);
 452         }
 453
 454         @Test
 455         public void requestIsCancelledForAudioMimeType() {
 456                 verifySnoopCancelsRequestForMimeType("audio/mpeg", true);
 457                 verify(backgroundFetchCallback).failed(uri);
 458         }
 459
 460         @Test
 461         public void requestIsCancelledForTextMimeType() {
 462                 verifySnoopCancelsRequestForMimeType("text/plain", true);
 463                 verify(backgroundFetchCallback).failed(uri);
 464         }
 465
 466         private void verifySnoopCancelsRequestForMimeType(String mimeType, boolean cancel) {
 467                 when(backgroundFetchCallback.shouldCancel(eq(uri), eq(mimeType), anyLong())).thenReturn(cancel);
 468                 freenetInterface.startFetch(uri, backgroundFetchCallback);
 469                 ArgumentCaptor<SnoopMetadata> snoopMetadata = forClass(SnoopMetadata.class);
 470                 verify(clientGetter).setMetaSnoop(snoopMetadata.capture());
 471                 Metadata metadata = mock(Metadata.class);
 472                 when(metadata.getMIMEType()).thenReturn(mimeType);
 473                 assertThat(snoopMetadata.getValue().snoopMetadata(metadata, mock(ClientContext.class)), is(cancel));
 474         }
 475
 476         @Test
 477         public void callbackOfBackgroundFetchIsNotifiedOnSuccess() throws Exception {
 478                 freenetInterface.startFetch(uri, backgroundFetchCallback);
 479                 verify(highLevelSimpleClient).fetch(eq(uri), anyLong(), clientGetCallback.capture(), any(FetchContext.class), anyShort());
 480                 when(fetchResult.getMimeType()).thenReturn("image/png");
 481                 when(fetchResult.asByteArray()).thenReturn(new byte[] { 1, 2, 3, 4, 5 });
 482                 clientGetCallback.getValue().onSuccess(fetchResult, mock(ClientGetter.class));
 483                 verify(backgroundFetchCallback).loaded(uri, "image/png", new byte[] { 1, 2, 3, 4, 5 });
 484                 verifyNoMoreInteractions(backgroundFetchCallback);
 485         }
 486
 487         @Test
 488         public void callbackOfBackgroundFetchIsNotifiedOnFailure() throws Exception {
 489                 freenetInterface.startFetch(uri, backgroundFetchCallback);
 490                 verify(highLevelSimpleClient).fetch(eq(uri), anyLong(), clientGetCallback.capture(), any(FetchContext.class), anyShort());
 491                 when(fetchResult.getMimeType()).thenReturn("image/png");
 492                 when(fetchResult.asByteArray()).thenReturn(new byte[] { 1, 2, 3, 4, 5 });
 493                 clientGetCallback.getValue().onFailure(new FetchException(ALL_DATA_NOT_FOUND), mock(ClientGetter.class));
 494                 verify(backgroundFetchCallback).failed(uri);
 495                 verifyNoMoreInteractions(backgroundFetchCallback);
 496         }
 497
 498         @Test
 499         public void callbackOfBackgroundFetchIsNotifiedAsFailureIfBucketCanNotBeLoaded() throws Exception {
 500                 freenetInterface.startFetch(uri, backgroundFetchCallback);
 501                 verify(highLevelSimpleClient).fetch(eq(uri), anyLong(), clientGetCallback.capture(), any(FetchContext.class), anyShort());
 502                 when(fetchResult.getMimeType()).thenReturn("image/png");
 503                 when(fetchResult.asByteArray()).thenThrow(IOException.class);
 504                 clientGetCallback.getValue().onSuccess(fetchResult, mock(ClientGetter.class));
 505                 verify(backgroundFetchCallback).failed(uri);
 506                 verifyNoMoreInteractions(backgroundFetchCallback);
 507         }
 508
 509 }