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.junit.Before;
  79 import org.junit.Test;
  80 import org.mockito.ArgumentCaptor;
  81 import org.mockito.ArgumentMatchers;
  82
  83 /**
  84  * Unit test for {@link FreenetInterface}.
  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         private final ClientGetter clientGetter = mock(ClientGetter.class);
 105
 106         public FreenetInterfaceTest() throws MalformedURLException {
 107         }
 108
 109         @Before
 110         public void setupHighLevelSimpleClient() throws Exception {
 111                 when(highLevelSimpleClient.getFetchContext()).thenReturn(mock(FetchContext.class));
 112                 when(highLevelSimpleClient.fetch(eq(uri), anyLong(), any(ClientGetCallback.class), any(FetchContext.class), anyShort())).thenReturn( clientGetter);
 113         }
 114
 115         @Before
 116         public void setupFreenetInterface() {
 117                 when(nodeClientCore.makeClient(anyShort(), anyBoolean(), anyBoolean())).thenReturn(highLevelSimpleClient);
 118                 setFinalField(node, "clientCore", nodeClientCore);
 119                 setFinalField(node, "random", randomSource);
 120                 setFinalField(nodeClientCore, "uskManager", uskManager);
 121                 setFinalField(nodeClientCore, "clientContext", mock(ClientContext.class));
 122                 freenetInterface = new FreenetInterface(eventBus, node);
 123                 insertToken = freenetInterface.new InsertToken(image);
 124                 insertToken.setBucket(bucket);
 125         }
 126
 127         @Before
 128         public void setupSone() {
 129                 InsertableClientSSK insertSsk = createRandom(randomSource, "test-0");
 130                 when(sone.getId()).thenReturn(Base64.encode(insertSsk.getURI().getRoutingKey()));
 131                 when(sone.getRequestUri()).thenReturn(insertSsk.getURI().uskForSSK());
 132         }
 133
 134         @Before
 135         public void setupCallbackCaptorAndUskManager() {
 136                 doNothing().when(uskManager).subscribe(any(USK.class), callbackCaptor.capture(), anyBoolean(), any(RequestClient.class));
 137         }
 138
 139         @Test
 140         public void canFetchUri() throws MalformedURLException, FetchException {
 141                 FreenetURI freenetUri = new FreenetURI("KSK@GPLv3.txt");
 142                 FetchResult fetchResult = createFetchResult();
 143                 when(highLevelSimpleClient.fetch(freenetUri)).thenReturn(fetchResult);
 144                 Fetched fetched = freenetInterface.fetchUri(freenetUri);
 145                 assertThat(fetched, notNullValue());
 146                 assertThat(fetched.getFetchResult(), is(fetchResult));
 147                 assertThat(fetched.getFreenetUri(), is(freenetUri));
 148         }
 149
 150         @Test
 151         public void fetchFollowsRedirect() throws MalformedURLException, FetchException {
 152                 FreenetURI freenetUri = new FreenetURI("KSK@GPLv2.txt");
 153                 FreenetURI newFreenetUri = new FreenetURI("KSK@GPLv3.txt");
 154                 FetchResult fetchResult = createFetchResult();
 155                 FetchException fetchException = new FetchException(FetchExceptionMode.PERMANENT_REDIRECT, newFreenetUri);
 156                 when(highLevelSimpleClient.fetch(freenetUri)).thenThrow(fetchException);
 157                 when(highLevelSimpleClient.fetch(newFreenetUri)).thenReturn(fetchResult);
 158                 Fetched fetched = freenetInterface.fetchUri(freenetUri);
 159                 assertThat(fetched.getFetchResult(), is(fetchResult));
 160                 assertThat(fetched.getFreenetUri(), is(newFreenetUri));
 161         }
 162
 163         @Test
 164         public void fetchReturnsNullOnFetchExceptions() throws MalformedURLException, FetchException {
 165                 FreenetURI freenetUri = new FreenetURI("KSK@GPLv2.txt");
 166                 FetchException fetchException = new FetchException(ALL_DATA_NOT_FOUND);
 167                 when(highLevelSimpleClient.fetch(freenetUri)).thenThrow(fetchException);
 168                 Fetched fetched = freenetInterface.fetchUri(freenetUri);
 169                 assertThat(fetched, nullValue());
 170         }
 171
 172         private FetchResult createFetchResult() {
 173                 ClientMetadata clientMetadata = new ClientMetadata("text/plain");
 174                 Bucket bucket = new ArrayBucket("Some Data.".getBytes());
 175                 return new FetchResult(clientMetadata, bucket);
 176         }
 177
 178         @Test
 179         public void insertingAnImage() throws SoneException, InsertException, IOException {
 180                 TemporaryImage temporaryImage = new TemporaryImage("image-id");
 181                 temporaryImage.setMimeType("image/png");
 182                 byte[] imageData = new byte[] { 1, 2, 3, 4 };
 183                 temporaryImage.setImageData(imageData);
 184                 Image image = new ImageImpl("image-id");
 185                 InsertToken insertToken = freenetInterface.new InsertToken(image);
 186                 InsertContext insertContext = mock(InsertContext.class);
 187                 when(highLevelSimpleClient.getInsertContext(anyBoolean())).thenReturn(insertContext);
 188                 ClientPutter clientPutter = mock(ClientPutter.class);
 189                 ArgumentCaptor<InsertBlock> insertBlockCaptor = forClass(InsertBlock.class);
 190                 when(highLevelSimpleClient.insert(insertBlockCaptor.capture(), eq((String) null), eq(false), eq(insertContext), eq(insertToken), anyShort())).thenReturn(clientPutter);
 191                 freenetInterface.insertImage(temporaryImage, image, insertToken);
 192                 assertThat(insertBlockCaptor.getValue().getData().getInputStream(), delivers(new byte[] { 1, 2, 3, 4 }));
 193                 assertThat(TestUtil.<ClientPutter>getPrivateField(insertToken, "clientPutter"), is(clientPutter));
 194                 verify(eventBus).post(any(ImageInsertStartedEvent.class));
 195         }
 196
 197         @Test(expected = SoneInsertException.class)
 198         public void insertExceptionCausesASoneException() throws InsertException, SoneException, IOException {
 199                 TemporaryImage temporaryImage = new TemporaryImage("image-id");
 200                 temporaryImage.setMimeType("image/png");
 201                 byte[] imageData = new byte[] { 1, 2, 3, 4 };
 202                 temporaryImage.setImageData(imageData);
 203                 Image image = new ImageImpl("image-id");
 204                 InsertToken insertToken = freenetInterface.new InsertToken(image);
 205                 InsertContext insertContext = mock(InsertContext.class);
 206                 when(highLevelSimpleClient.getInsertContext(anyBoolean())).thenReturn(insertContext);
 207                 ArgumentCaptor<InsertBlock> insertBlockCaptor = forClass(InsertBlock.class);
 208                 when(highLevelSimpleClient.insert(insertBlockCaptor.capture(), eq((String) null), eq(false), eq(insertContext), eq(insertToken), anyShort())).thenThrow(InsertException.class);
 209                 freenetInterface.insertImage(temporaryImage, image, insertToken);
 210         }
 211
 212         @Test
 213         public void insertingADirectory() throws InsertException, SoneException {
 214                 FreenetURI freenetUri = mock(FreenetURI.class);
 215                 HashMap<String, Object> manifestEntries = new HashMap<String, Object>();
 216                 String defaultFile = "index.html";
 217                 FreenetURI resultingUri = mock(FreenetURI.class);
 218                 when(highLevelSimpleClient.insertManifest(eq(freenetUri), eq(manifestEntries), eq(defaultFile))).thenReturn(resultingUri);
 219                 assertThat(freenetInterface.insertDirectory(freenetUri, manifestEntries, defaultFile), is(resultingUri));
 220         }
 221
 222         @Test(expected = SoneException.class)
 223         public void insertExceptionIsForwardedAsSoneException() throws InsertException, SoneException {
 224                 when(highLevelSimpleClient.insertManifest(ArgumentMatchers.<FreenetURI>any(), ArgumentMatchers.<HashMap<String, Object>>any(), ArgumentMatchers.<String>any())).thenThrow(InsertException.class);
 225                 freenetInterface.insertDirectory(null, null, null);
 226         }
 227
 228         @Test
 229         public void soneWithWrongRequestUriWillNotBeSubscribed() throws MalformedURLException {
 230                 when(sone.getRequestUri()).thenReturn(new FreenetURI("KSK@GPLv3.txt"));
 231                 freenetInterface.registerUsk(new FreenetURI("KSK@GPLv3.txt"), null);
 232                 verify(uskManager, never()).subscribe(any(USK.class), any(USKCallback.class), anyBoolean(), any(RequestClient.class));
 233         }
 234
 235         @Test
 236         public void registeringAUsk() {
 237                 FreenetURI freenetUri = createRandom(randomSource, "test-0").getURI().uskForSSK();
 238                 Callback callback = mock(Callback.class);
 239                 freenetInterface.registerUsk(freenetUri, callback);
 240                 verify(uskManager).subscribe(any(USK.class), any(USKCallback.class), anyBoolean(), any(RequestClient.class));
 241         }
 242
 243         @Test
 244         public void registeringANonUskKeyWillNotBeSubscribed() throws MalformedURLException {
 245                 FreenetURI freenetUri = new FreenetURI("KSK@GPLv3.txt");
 246                 Callback callback = mock(Callback.class);
 247                 freenetInterface.registerUsk(freenetUri, callback);
 248                 verify(uskManager, never()).subscribe(any(USK.class), any(USKCallback.class), anyBoolean(), any(RequestClient.class));
 249         }
 250
 251         @Test
 252         public void registeringAnActiveUskWillSubscribeToItCorrectly() {
 253                 FreenetURI freenetUri = createRandom(randomSource, "test-0").getURI().uskForSSK();
 254                 final USKCallback uskCallback = mock(USKCallback.class);
 255                 freenetInterface.registerActiveUsk(freenetUri, uskCallback);
 256                 verify(uskManager).subscribe(any(USK.class), eq(uskCallback), eq(true), any(RequestClient.class));
 257         }
 258
 259         @Test
 260         public void registeringAnInactiveUskWillSubscribeToItCorrectly() {
 261                 FreenetURI freenetUri = createRandom(randomSource, "test-0").getURI().uskForSSK();
 262                 final USKCallback uskCallback = mock(USKCallback.class);
 263                 freenetInterface.registerPassiveUsk(freenetUri, uskCallback);
 264                 verify(uskManager).subscribe(any(USK.class), eq(uskCallback), eq(false), any(RequestClient.class));
 265         }
 266
 267         @Test
 268         public void registeringAnActiveNonUskWillNotSubscribeToAUsk()
 269         throws MalformedURLException {
 270                 FreenetURI freenetUri = createRandom(randomSource, "test-0").getURI();
 271                 freenetInterface.registerActiveUsk(freenetUri, null);
 272                 verify(uskManager, never()).subscribe(any(USK.class), any(USKCallback.class), anyBoolean(), any(RequestClient.class));
 273         }
 274
 275         @Test
 276         public void registeringAnInactiveNonUskWillNotSubscribeToAUsk()
 277         throws MalformedURLException {
 278                 FreenetURI freenetUri = createRandom(randomSource, "test-0").getURI();
 279                 freenetInterface.registerPassiveUsk(freenetUri, null);
 280                 verify(uskManager, never()).subscribe(any(USK.class), any(USKCallback.class), anyBoolean(), any(RequestClient.class));
 281         }
 282
 283         @Test
 284         public void unregisteringANotRegisteredUskDoesNothing() {
 285                 FreenetURI freenetURI = createRandom(randomSource, "test-0").getURI().uskForSSK();
 286                 freenetInterface.unregisterUsk(freenetURI);
 287                 verify(uskManager, never()).unsubscribe(any(USK.class), any(USKCallback.class));
 288         }
 289
 290         @Test
 291         public void unregisteringARegisteredUsk() {
 292                 FreenetURI freenetURI = createRandom(randomSource, "test-0").getURI().uskForSSK();
 293                 Callback callback = mock(Callback.class);
 294                 freenetInterface.registerUsk(freenetURI, callback);
 295                 freenetInterface.unregisterUsk(freenetURI);
 296                 verify(uskManager).unsubscribe(any(USK.class), any(USKCallback.class));
 297         }
 298
 299         @Test
 300         public void unregisteringANotRegisteredSoneDoesNothing() {
 301                 freenetInterface.unregisterUsk(sone);
 302                 verify(uskManager, never()).unsubscribe(any(USK.class), any(USKCallback.class));
 303         }
 304
 305         @Test
 306         public void unregisteringARegisteredSoneUnregistersTheSone()
 307         throws MalformedURLException {
 308                 freenetInterface.registerActiveUsk(sone.getRequestUri(), mock(USKCallback.class));
 309                 freenetInterface.unregisterUsk(sone);
 310                 verify(uskManager).unsubscribe(any(USK.class), any(USKCallback.class));
 311         }
 312
 313         @Test
 314         public void unregisteringASoneWithAWrongRequestKeyWillNotUnsubscribe() throws MalformedURLException {
 315                 when(sone.getRequestUri()).thenReturn(new FreenetURI("KSK@GPLv3.txt"));
 316                 freenetInterface.registerUsk(sone.getRequestUri(), null);
 317                 freenetInterface.unregisterUsk(sone);
 318                 verify(uskManager, never()).unsubscribe(any(USK.class), any(USKCallback.class));
 319         }
 320
 321         @Test
 322         public void callbackForNormalUskUsesDifferentPriorities() {
 323                 Callback callback = mock(Callback.class);
 324                 FreenetURI soneUri = createRandom(randomSource, "test-0").getURI().uskForSSK();
 325                 freenetInterface.registerUsk(soneUri, callback);
 326                 assertThat(callbackCaptor.getValue().getPollingPriorityNormal(), is(PREFETCH_PRIORITY_CLASS));
 327                 assertThat(callbackCaptor.getValue().getPollingPriorityProgress(), is(INTERACTIVE_PRIORITY_CLASS));
 328         }
 329
 330         @Test
 331         public void callbackForNormalUskForwardsImportantParameters() throws MalformedURLException {
 332                 Callback callback = mock(Callback.class);
 333                 FreenetURI uri = createRandom(randomSource, "test-0").getURI().uskForSSK();
 334                 freenetInterface.registerUsk(uri, callback);
 335                 USK key = mock(USK.class);
 336                 when(key.getURI()).thenReturn(uri);
 337                 callbackCaptor.getValue().onFoundEdition(3, key, null, false, (short) 0, null, true, true);
 338                 verify(callback).editionFound(eq(uri), eq(3L), eq(true), eq(true));
 339         }
 340
 341         @Test
 342         public void fetchedRetainsUriAndFetchResult() {
 343                 FreenetURI freenetUri = mock(FreenetURI.class);
 344                 FetchResult fetchResult = mock(FetchResult.class);
 345                 Fetched fetched = new Fetched(freenetUri, fetchResult);
 346                 assertThat(fetched.getFreenetUri(), is(freenetUri));
 347                 assertThat(fetched.getFetchResult(), is(fetchResult));
 348         }
 349
 350         @Test
 351         public void cancellingAnInsertWillFireImageInsertAbortedEvent() {
 352                 ClientPutter clientPutter = mock(ClientPutter.class);
 353                 insertToken.setClientPutter(clientPutter);
 354                 ArgumentCaptor<ImageInsertStartedEvent> imageInsertStartedEvent = forClass(ImageInsertStartedEvent.class);
 355                 verify(eventBus).post(imageInsertStartedEvent.capture());
 356                 assertThat(imageInsertStartedEvent.getValue().image(), is(image));
 357                 insertToken.cancel();
 358                 ArgumentCaptor<ImageInsertAbortedEvent> imageInsertAbortedEvent = forClass(ImageInsertAbortedEvent.class);
 359                 verify(eventBus, times(2)).post(imageInsertAbortedEvent.capture());
 360                 verify(bucket).free();
 361                 assertThat(imageInsertAbortedEvent.getValue().image(), is(image));
 362         }
 363
 364         @Test
 365         public void failureWithoutExceptionSendsFailedEvent() {
 366                 insertToken.onFailure(null, null);
 367                 ArgumentCaptor<ImageInsertFailedEvent> imageInsertFailedEvent = forClass(ImageInsertFailedEvent.class);
 368                 verify(eventBus).post(imageInsertFailedEvent.capture());
 369                 verify(bucket).free();
 370                 assertThat(imageInsertFailedEvent.getValue().image(), is(image));
 371                 assertThat(imageInsertFailedEvent.getValue().cause(), nullValue());
 372         }
 373
 374         @Test
 375         public void failureSendsFailedEventWithException() {
 376                 InsertException insertException = new InsertException(InsertExceptionMode.INTERNAL_ERROR, "Internal error", null);
 377                 insertToken.onFailure(insertException, null);
 378                 ArgumentCaptor<ImageInsertFailedEvent> imageInsertFailedEvent = forClass(ImageInsertFailedEvent.class);
 379                 verify(eventBus).post(imageInsertFailedEvent.capture());
 380                 verify(bucket).free();
 381                 assertThat(imageInsertFailedEvent.getValue().image(), is(image));
 382                 assertThat(imageInsertFailedEvent.getValue().cause(), is((Throwable) insertException));
 383         }
 384
 385         @Test
 386         public void failureBecauseCancelledByUserSendsAbortedEvent() {
 387                 InsertException insertException = new InsertException(InsertExceptionMode.CANCELLED, null);
 388                 insertToken.onFailure(insertException, null);
 389                 ArgumentCaptor<ImageInsertAbortedEvent> imageInsertAbortedEvent = forClass(ImageInsertAbortedEvent.class);
 390                 verify(eventBus).post(imageInsertAbortedEvent.capture());
 391                 verify(bucket).free();
 392                 assertThat(imageInsertAbortedEvent.getValue().image(), is(image));
 393         }
 394
 395         @Test
 396         public void ignoredMethodsDoNotThrowExceptions() throws ResumeFailedException {
 397                 insertToken.onResume(null);
 398                 insertToken.onFetchable(null);
 399                 insertToken.onGeneratedMetadata(null, null);
 400         }
 401
 402         @Test
 403         public void generatedUriIsPostedOnSuccess() {
 404                 FreenetURI generatedUri = mock(FreenetURI.class);
 405                 insertToken.onGeneratedURI(generatedUri, null);
 406                 insertToken.onSuccess(null);
 407                 ArgumentCaptor<ImageInsertFinishedEvent> imageInsertFinishedEvent = forClass(ImageInsertFinishedEvent.class);
 408                 verify(eventBus).post(imageInsertFinishedEvent.capture());
 409                 verify(bucket).free();
 410                 assertThat(imageInsertFinishedEvent.getValue().image(), is(image));
 411                 assertThat(imageInsertFinishedEvent.getValue().resultingUri(), is(generatedUri));
 412         }
 413
 414         @Test
 415         public void insertTokenSupplierSuppliesInsertTokens() {
 416                 InsertTokenSupplier insertTokenSupplier = new InsertTokenSupplier(freenetInterface);
 417                 assertThat(insertTokenSupplier.apply(image), notNullValue());
 418         }
 419
 420         @Test
 421         public void backgroundFetchCanBeStarted() throws Exception {
 422                 freenetInterface.startFetch(uri, backgroundFetchCallback);
 423                 verify(highLevelSimpleClient).fetch(eq(uri), anyLong(), any(ClientGetCallback.class), any(FetchContext.class), anyShort());
 424         }
 425
 426         @Test
 427         public void backgroundFetchRegistersSnoopAndRestartsTheRequest() throws Exception {
 428                 freenetInterface.startFetch(uri, backgroundFetchCallback);
 429                 verify(clientGetter).setMetaSnoop(any(SnoopMetadata.class));
 430                 verify(clientGetter).restart(eq(uri), anyBoolean(), any(ClientContext.class));
 431         }
 432
 433         @Test
 434         public void requestIsNotCancelledForImageMimeType() {
 435                 verifySnoopCancelsRequestForMimeType("image/png", false);
 436                 verify(backgroundFetchCallback, never()).failed(uri);
 437         }
 438
 439         @Test
 440         public void requestIsCancelledForNullMimeType() {
 441                 verifySnoopCancelsRequestForMimeType(null, true);
 442                 verify(backgroundFetchCallback, never()).shouldCancel(eq(uri), ArgumentMatchers.<String>any(), anyLong());
 443                 verify(backgroundFetchCallback).failed(uri);
 444         }
 445
 446         @Test
 447         public void requestIsCancelledForVideoMimeType() {
 448                 verifySnoopCancelsRequestForMimeType("video/mkv", true);
 449                 verify(backgroundFetchCallback).failed(uri);
 450         }
 451
 452         @Test
 453         public void requestIsCancelledForAudioMimeType() {
 454                 verifySnoopCancelsRequestForMimeType("audio/mpeg", true);
 455                 verify(backgroundFetchCallback).failed(uri);
 456         }
 457
 458         @Test
 459         public void requestIsCancelledForTextMimeType() {
 460                 verifySnoopCancelsRequestForMimeType("text/plain", true);
 461                 verify(backgroundFetchCallback).failed(uri);
 462         }
 463
 464         private void verifySnoopCancelsRequestForMimeType(String mimeType, boolean cancel) {
 465                 when(backgroundFetchCallback.shouldCancel(eq(uri), eq(mimeType), anyLong())).thenReturn(cancel);
 466                 freenetInterface.startFetch(uri, backgroundFetchCallback);
 467                 ArgumentCaptor<SnoopMetadata> snoopMetadata = forClass(SnoopMetadata.class);
 468                 verify(clientGetter).setMetaSnoop(snoopMetadata.capture());
 469                 Metadata metadata = mock(Metadata.class);
 470                 when(metadata.getMIMEType()).thenReturn(mimeType);
 471                 assertThat(snoopMetadata.getValue().snoopMetadata(metadata, mock(ClientContext.class)), is(cancel));
 472         }
 473
 474         @Test
 475         public void callbackOfBackgroundFetchIsNotifiedOnSuccess() throws Exception {
 476                 freenetInterface.startFetch(uri, backgroundFetchCallback);
 477                 verify(highLevelSimpleClient).fetch(eq(uri), anyLong(), clientGetCallback.capture(), any(FetchContext.class), anyShort());
 478                 when(fetchResult.getMimeType()).thenReturn("image/png");
 479                 when(fetchResult.asByteArray()).thenReturn(new byte[] { 1, 2, 3, 4, 5 });
 480                 clientGetCallback.getValue().onSuccess(fetchResult, mock(ClientGetter.class));
 481                 verify(backgroundFetchCallback).loaded(uri, "image/png", new byte[] { 1, 2, 3, 4, 5 });
 482                 verifyNoMoreInteractions(backgroundFetchCallback);
 483         }
 484
 485         @Test
 486         public void callbackOfBackgroundFetchIsNotifiedOnFailure() throws Exception {
 487                 freenetInterface.startFetch(uri, backgroundFetchCallback);
 488                 verify(highLevelSimpleClient).fetch(eq(uri), anyLong(), clientGetCallback.capture(), any(FetchContext.class), anyShort());
 489                 when(fetchResult.getMimeType()).thenReturn("image/png");
 490                 when(fetchResult.asByteArray()).thenReturn(new byte[] { 1, 2, 3, 4, 5 });
 491                 clientGetCallback.getValue().onFailure(new FetchException(ALL_DATA_NOT_FOUND), mock(ClientGetter.class));
 492                 verify(backgroundFetchCallback).failed(uri);
 493                 verifyNoMoreInteractions(backgroundFetchCallback);
 494         }
 495
 496         @Test
 497         public void callbackOfBackgroundFetchIsNotifiedAsFailureIfBucketCanNotBeLoaded() throws Exception {
 498                 freenetInterface.startFetch(uri, backgroundFetchCallback);
 499                 verify(highLevelSimpleClient).fetch(eq(uri), anyLong(), clientGetCallback.capture(), any(FetchContext.class), anyShort());
 500                 when(fetchResult.getMimeType()).thenReturn("image/png");
 501                 when(fetchResult.asByteArray()).thenThrow(IOException.class);
 502                 clientGetCallback.getValue().onSuccess(fetchResult, mock(ClientGetter.class));
 503                 verify(backgroundFetchCallback).failed(uri);
 504                 verifyNoMoreInteractions(backgroundFetchCallback);
 505         }
 506
 507 }