private static void test4() {
log("just subscribe to see output ");
Observable<List<Integer>> listOfInts =
Observable.just(Arrays.asList(1, 3, 5, 7), Arrays.asList(2, 4, 6, 8));
listOfInts.subscribe(x -> System.out.print(x + " "));
println("");
log("concatMap");
listOfInts.concatMap(x -> Observable.from(x)).subscribe(Main::print);
println("");
log("flapMap");
listOfInts
.flatMap(
listOfIntegers -> {
return Observable.from(listOfIntegers);
})
.subscribe(Main::print);
println("");
Map<String, List<Integer>> m1 = new HashMap<>();
m1.put("key", Arrays.asList(2, 4, 6, 8, 10));
Map<String, List<Integer>> m2 = new HashMap<>();
m2.put("key", Arrays.asList(1, 3, 5, 7, 9));
log("testing flatMap with 2 maps param");
Observable.just(m1, m2)
.flatMap(map -> Observable.from(map.get("key")).map(x -> x))
.subscribe(Main::print);
println("");
}
@Test
public void testEmitNull() {
Observable<Integer> oi = Observable.from(1, null, 3);
Observable<String> os = Observable.from("a", "b", null);
Observable<String> o =
Observable.zip(
oi,
os,
new Func2<Integer, String, String>() {
@Override
public String call(Integer t1, String t2) {
return t1 + "-" + t2;
}
});
final ArrayList<String> list = new ArrayList<String>();
o.subscribe(
new Action1<String>() {
@Override
public void call(String s) {
System.out.println(s);
list.add(s);
}
});
assertEquals(3, list.size());
assertEquals("1-a", list.get(0));
assertEquals("null-b", list.get(1));
assertEquals("3-null", list.get(2));
}
public static void test5() {
log("test zip of two observables with equal elements from both lists");
Observable.zip(
Observable.from(Arrays.asList(1, 3, 5, 7, 9)),
Observable.from(Arrays.asList(2, 4, 6, 8, 10)),
(x, y) -> "(" + x + "," + y + ")")
.subscribe(Main::print);
println("");
log("test zipWith with unequal elements from lists");
Observable.from(Arrays.asList(1, 3, 5))
.zipWith(Observable.from(Arrays.asList(2, 4, 6, 7)), (x, y) -> "(" + x + "," + y + ")")
.subscribe(Main::print);
println("");
log("test retry stuff");
AtomicInteger i = new AtomicInteger(0);
Observable<String> testRetry =
Observable.create(
subs -> {
if (i.get() < 3) {
i.incrementAndGet();
println("retyring for " + i + " time.");
subs.onError(new RuntimeException("error 1"));
} else {
subs.onNext("hello");
subs.onCompleted();
}
});
testRetry.retry().subscribe(Main::print, Main::println);
println("");
}
/** IO scheduler defaults to using CachedThreadScheduler */
@Test
public final void testIOScheduler() {
Observable<Integer> o1 = Observable.from(1, 2, 3, 4, 5);
Observable<Integer> o2 = Observable.from(6, 7, 8, 9, 10);
Observable<String> o =
Observable.merge(o1, o2)
.map(
new Func1<Integer, String>() {
@Override
public String call(Integer t) {
assertTrue(
Thread.currentThread().getName().startsWith("RxCachedThreadScheduler"));
return "Value_" + t + "_Thread_" + Thread.currentThread().getName();
}
});
o.subscribeOn(Schedulers.io())
.toBlocking()
.forEach(
new Action1<String>() {
@Override
public void call(String t) {
System.out.println("t: " + t);
}
});
}
public static void run() {
// Terrible
query("Gimme some movies!")
.subscribe(
urls -> {
for (String url : urls) {
System.out.println(url);
}
});
// Still terrible
query("Gimme some movies!")
.subscribe(
urls -> {
Observable.from(urls).subscribe(url -> System.out.println(url));
});
// Ye olde flatMap!
query("Gimme some movies!")
.flatMap(urls -> Observable.from(urls))
.subscribe(url -> System.out.println(url));
// Behold the power of flatMap!
query("Gimme some movies!")
.flatMap(urls -> Observable.from(urls))
.flatMap(url -> getTitle(url))
.subscribe(title -> System.out.println(title));
}
@Test
public void testConcatObservableOfObservables() {
@SuppressWarnings("unchecked")
Observer<String> observer = mock(Observer.class);
final String[] o = {"1", "3", "5", "7"};
final String[] e = {"2", "4", "6"};
final Observable<String> odds = Observable.from(o);
final Observable<String> even = Observable.from(e);
Observable<Observable<String>> observableOfObservables =
Observable.create(
new Observable.OnSubscribeFunc<Observable<String>>() {
@Override
public Subscription onSubscribe(Observer<? super Observable<String>> observer) {
// simulate what would happen in an observable
observer.onNext(odds);
observer.onNext(even);
observer.onCompleted();
return Subscriptions.empty();
}
});
Observable<String> concat = Observable.concat(observableOfObservables);
concat.subscribe(observer);
verify(observer, times(7)).onNext(anyString());
}
@Test
public void testFlatMapTransformsException() {
Observable<Integer> onNext = Observable.from(Arrays.asList(1, 2, 3));
Observable<Integer> onCompleted = Observable.from(Arrays.asList(4));
Observable<Integer> onError = Observable.from(Arrays.asList(5));
Observable<Integer> source =
Observable.concat(
Observable.from(Arrays.asList(10, 20, 30)),
Observable.<Integer>error(new RuntimeException("Forced failure!")));
@SuppressWarnings("unchecked")
Observer<Object> o = mock(Observer.class);
source.flatMap(just(onNext), just(onError), just0(onCompleted)).subscribe(o);
verify(o, times(3)).onNext(1);
verify(o, times(3)).onNext(2);
verify(o, times(3)).onNext(3);
verify(o).onNext(5);
verify(o).onCompleted();
verify(o, never()).onNext(4);
verify(o, never()).onError(any(Throwable.class));
}
public void testSplit(String str, String regex, int limit, String... parts) {
testSplit(str, regex, 0, Observable.from(str), parts);
for (int i = 0; i < str.length(); i++) {
String a = str.substring(0, i);
String b = str.substring(i, str.length());
testSplit(a + "|" + b, regex, limit, Observable.from(a, b), parts);
}
}
@Test
public void testOnNextExceptionInvokesOnError() {
Func2<Integer, Integer, Integer> zipr = getDivideZipr();
@SuppressWarnings("unchecked")
Observer<Integer> observer = mock(Observer.class);
Observable<Integer> w =
Observable.zip(Observable.from(10, 20, 30), Observable.from(0, 1, 2), zipr);
w.subscribe(observer);
verify(observer, times(1)).onError(any(Throwable.class));
}
private Observable<Item> searchByHashtagObservable() {
Observable<Item> observableSocialNetworks =
Observable.from(socialNetworks)
.flatMap(
new Func1<SocialNetwork, Observable<Item>>() {
@Override
public Observable<Item> call(SocialNetwork socialNetwork) {
return socialNetwork.getService().searchByHashtag(hashtag);
}
});
List<Observable<Item>> observableList = Lists.newArrayList();
observableList.add(observableSocialNetworks);
return Observable.zip(
observableList,
new FuncN<Item>() {
@Override
public Item call(Object... args) {
if (args.length == 1) {
return (Item) args[0];
}
return Item.empty();
}
});
}
public Observable<List<TwitterUser>> searchUsers(String prefix) {
if (ThreadLocalRandom.current().nextDouble() < failureProbability) {
return Observable.error(new IOException("Broken pipe"));
}
return Observable.from(users).skip(1).toList().subscribeOn(Schedulers.newThread());
}
private void loadList(List<AppInfo> apps) {
mRecyclerView.setVisibility(View.VISIBLE);
Observable.from(Lists.reverse(apps))
.scan(
(appInfo, appInfo2) -> {
if (appInfo.getName().length() > appInfo2.getName().length()) {
return appInfo;
} else {
return appInfo2;
}
})
.distinct()
.subscribe(
new Observer<AppInfo>() {
@Override
public void onCompleted() {
mSwipeRefreshLayout.setRefreshing(false);
}
@Override
public void onError(Throwable e) {
Toast.makeText(getActivity(), "Something went south!", Toast.LENGTH_SHORT).show();
mSwipeRefreshLayout.setRefreshing(false);
}
@Override
public void onNext(AppInfo appInfo) {
mAddedApps.add(appInfo);
mAdapter.addApplication(mAddedApps.size() - 1, appInfo);
}
});
}
@Test
public void testNormal() {
@SuppressWarnings("unchecked")
Observer<Object> o = mock(Observer.class);
final List<Integer> list = Arrays.asList(1, 2, 3);
Func1<Integer, List<Integer>> func =
new Func1<Integer, List<Integer>>() {
@Override
public List<Integer> call(Integer t1) {
return list;
}
};
Func2<Integer, Integer, Integer> resFunc =
new Func2<Integer, Integer, Integer>() {
@Override
public Integer call(Integer t1, Integer t2) {
return t1 | t2;
}
};
List<Integer> source = Arrays.asList(16, 32, 64);
Observable.from(source).flatMapIterable(func, resFunc).subscribe(o);
for (Integer s : source) {
for (Integer v : list) {
verify(o).onNext(s | v);
}
}
verify(o).onCompleted();
verify(o, never()).onError(any(Throwable.class));
}
@Test
public void testResumeNext() {
Subscription s = mock(Subscription.class);
// Trigger failure on second element
TestObservable f = new TestObservable(s, "one", "fail", "two", "three");
Observable<String> w = Observable.create(f);
Observable<String> resume = Observable.from("twoResume", "threeResume");
Observable<String> observable = Observable.create(onErrorResumeNextViaObservable(w, resume));
@SuppressWarnings("unchecked")
Observer<String> observer = mock(Observer.class);
observable.subscribe(observer);
try {
f.t.join();
} catch (InterruptedException e) {
fail(e.getMessage());
}
verify(observer, Mockito.never()).onError(any(Throwable.class));
verify(observer, times(1)).onCompleted();
verify(observer, times(1)).onNext("one");
verify(observer, Mockito.never()).onNext("two");
verify(observer, Mockito.never()).onNext("three");
verify(observer, times(1)).onNext("twoResume");
verify(observer, times(1)).onNext("threeResume");
}
private Observable<WebPageEntity> parseDocument(DownloadResult downloadResult) {
Set<WebPageEntity> result = new HashSet<>(1);
Document document = downloadResult.getDocument();
if (document != null) {
Elements elements = document.select(".InfoArea a[title]");
if (!elements.isEmpty()) {
for (Element element : elements) {
WebPageEntity webPageEntity =
new WebPageEntity(
downloadResult.getSourcePage(),
"",
"productPage",
element.attr("abs:href"),
downloadResult.getSourcePage().getCategory());
LOGGER.info("productPageUrl={}", webPageEntity.getUrl());
result.add(webPageEntity);
}
} else {
WebPageEntity webPageEntity =
new WebPageEntity(
downloadResult.getSourcePage(),
"",
"productPage",
downloadResult.getSourcePage().getUrl(),
downloadResult.getSourcePage().getCategory());
LOGGER.info("productPageUrl={}", webPageEntity.getUrl());
result.add(webPageEntity);
}
}
return Observable.from(result);
}
@Test
public void testBackpressureWithTakeBefore() {
final AtomicInteger generated = new AtomicInteger();
Observable<Integer> observable =
Observable.from(
new Iterable<Integer>() {
@Override
public Iterator<Integer> iterator() {
return new Iterator<Integer>() {
@Override
public void remove() {}
@Override
public Integer next() {
return generated.getAndIncrement();
}
@Override
public boolean hasNext() {
return true;
}
};
}
});
TestSubscriber<Integer> testSubscriber = new TestSubscriber<Integer>();
observable.take(7).observeOn(Schedulers.newThread()).subscribe(testSubscriber);
testSubscriber.awaitTerminalEvent();
testSubscriber.assertReceivedOnNext(Arrays.asList(0, 1, 2, 3, 4, 5, 6));
assertEquals(7, generated.get());
}
private void loadList(List<AppInfo> apps) {
mRecyclerView.setVisibility(View.VISIBLE);
Observable<AppInfo> observableApp = Observable.from(apps);
Observable<Long> tictoc = Observable.interval(1, TimeUnit.SECONDS);
Observable.zip(observableApp, tictoc, this::updateTitle)
.observeOn(AndroidSchedulers.mainThread())
.subscribe(
new Observer<AppInfo>() {
@Override
public void onCompleted() {
Toast.makeText(getActivity(), "Here is the list!", Toast.LENGTH_LONG).show();
}
@Override
public void onError(Throwable e) {
mSwipeRefreshLayout.setRefreshing(false);
Toast.makeText(getActivity(), "Something went wrong!", Toast.LENGTH_SHORT).show();
}
@Override
public void onNext(AppInfo appInfo) {
if (mSwipeRefreshLayout.isRefreshing()) {
mSwipeRefreshLayout.setRefreshing(false);
}
mAddedApps.add(appInfo);
int position = mAddedApps.size() - 1;
mAdapter.addApplication(position, appInfo);
mRecyclerView.smoothScrollToPosition(position);
}
});
}
@Test
public void testParallelMerge() {
PublishSubject<String> p1 = PublishSubject.<String>create();
PublishSubject<String> p2 = PublishSubject.<String>create();
PublishSubject<String> p3 = PublishSubject.<String>create();
PublishSubject<String> p4 = PublishSubject.<String>create();
Observable<Observable<String>> fourStreams =
Observable.<Observable<String>>from(p1, p2, p3, p4);
Observable<Observable<String>> twoStreams = Observable.parallelMerge(fourStreams, 2);
Observable<Observable<String>> threeStreams = Observable.parallelMerge(fourStreams, 3);
List<? super Observable<String>> fourList = fourStreams.toList().toBlocking().last();
List<? super Observable<String>> threeList = threeStreams.toList().toBlocking().last();
List<? super Observable<String>> twoList = twoStreams.toList().toBlocking().last();
System.out.println("two list: " + twoList);
System.out.println("three list: " + threeList);
System.out.println("four list: " + fourList);
assertEquals(4, fourList.size());
assertEquals(3, threeList.size());
assertEquals(2, twoList.size());
}
@Test
public void testResultFunctionThrows() {
@SuppressWarnings("unchecked")
Observer<Object> o = mock(Observer.class);
final List<Integer> list = Arrays.asList(1, 2, 3);
Func1<Integer, List<Integer>> func =
new Func1<Integer, List<Integer>>() {
@Override
public List<Integer> call(Integer t1) {
return list;
}
};
Func2<Integer, Integer, Integer> resFunc =
new Func2<Integer, Integer, Integer>() {
@Override
public Integer call(Integer t1, Integer t2) {
throw new TestException();
}
};
List<Integer> source = Arrays.asList(16, 32, 64);
Observable.from(source).flatMapIterable(func, resFunc).subscribe(o);
verify(o, never()).onCompleted();
verify(o, never()).onNext(any());
verify(o).onError(any(TestException.class));
}
public void testSplit(
String message, String regex, int limit, Observable<String> src, String... parts) {
Observable<String> act = StringObservable.split(src, regex);
Observable<String> exp = Observable.from(parts);
AssertObservable.assertObservableEqualsBlocking(
"when input is " + message + " and limit = " + limit, exp, act);
}
@Test
public void testMultibyteSpanningTwoBuffers() {
Observable<byte[]> src = Observable.from(new byte[] {(byte) 0xc2}, new byte[] {(byte) 0xa1});
String out = StringObservable.decode(src, "UTF-8").toBlockingObservable().single();
assertEquals("\u00A1", out);
}
@Test
public void testFlatMapTransformsOnNextFuncThrows() {
Observable<Integer> onCompleted = Observable.from(Arrays.asList(4));
Observable<Integer> onError = Observable.from(Arrays.asList(5));
Observable<Integer> source = Observable.from(Arrays.asList(10, 20, 30));
@SuppressWarnings("unchecked")
Observer<Object> o = mock(Observer.class);
source.flatMap(funcThrow(1, onError), just(onError), just0(onCompleted)).subscribe(o);
verify(o).onError(any(TestException.class));
verify(o, never()).onNext(any());
verify(o, never()).onCompleted();
}
@Test
public void thatPlaneInfoIsSummedUpCombinedWithObservables() throws Exception {
WaitMonitor monitor = new WaitMonitor();
// error handler function
Action1<Throwable> exceptionConsumer =
(e) -> {
e.printStackTrace();
monitor.complete();
};
String[] planeTypes = {"Boeing 777", "Boeing 747", "Boeing 737", "Airbus A330"};
Observable.from(planeTypes)
.flatMap(this::fetchArticle)
.map(this::parsePlaneInfo)
.subscribe(
(planeInfo) -> {
Summary.printCounter(planeInfo.typeName, planeInfo.numberBuild);
},
exceptionConsumer,
monitor::complete);
monitor.waitFor(10000, TimeUnit.MILLISECONDS);
}
@Test
public void testTimeoutSelectorFirstObservableThrows() {
PublishSubject<Integer> source = PublishSubject.create();
final PublishSubject<Integer> timeout = PublishSubject.create();
Func1<Integer, Observable<Integer>> timeoutFunc =
new Func1<Integer, Observable<Integer>>() {
@Override
public Observable<Integer> call(Integer t1) {
return timeout;
}
};
Func0<Observable<Integer>> firstTimeoutFunc =
new Func0<Observable<Integer>>() {
@Override
public Observable<Integer> call() {
return Observable.<Integer>error(new OperationReduceTest.CustomException());
}
};
Observable<Integer> other = Observable.from(Arrays.asList(100));
@SuppressWarnings("unchecked")
Observer<Object> o = mock(Observer.class);
source.timeout(firstTimeoutFunc, timeoutFunc, other).subscribe(o);
verify(o).onError(any(OperationReduceTest.CustomException.class));
verify(o, never()).onNext(any());
verify(o, never()).onCompleted();
}
private void callWithFrom() {
Log.v("Eg:NewActivity:95", "callWithFrom");
Observable.from(getList())
.map(
new Func1<String, String>() {
@Override
public String call(String s) {
Log.i("Eg:NewActivity:101", "call s -> " + s);
return s + " Egis";
}
})
.subscribe(
new Subscriber<String>() {
@Override
public void onCompleted() {
Log.i("Eg:NewActivity:108", "onCompleted");
}
@Override
public void onError(Throwable e) {
Log.e("Eg:NewActivity:114", "onError");
}
@Override
public void onNext(String s) {
Log.w("Eg:NewActivity:120", "onNext s -> " + s);
}
});
}
@Test
public void testMergeError() {
@SuppressWarnings("unchecked")
Observer<Object> o = mock(Observer.class);
Func1<Integer, Observable<Integer>> func =
new Func1<Integer, Observable<Integer>>() {
@Override
public Observable<Integer> call(Integer t1) {
return Observable.error(new TestException());
}
};
Func2<Integer, Integer, Integer> resFunc =
new Func2<Integer, Integer, Integer>() {
@Override
public Integer call(Integer t1, Integer t2) {
return t1 | t2;
}
};
List<Integer> source = Arrays.asList(16, 32, 64);
Observable.from(source).flatMap(func, resFunc).subscribe(o);
verify(o, never()).onCompleted();
verify(o, never()).onNext(any());
verify(o).onError(any(TestException.class));
}
@Test
public void loadRepoWithNEvent() {
when(repo.getModificationId()).thenReturn("modif id");
IEvent first = mock(IEvent.class);
IEvent second = mock(IEvent.class);
IEvent third = mock(IEvent.class);
// stub sorting order
when(first.compareTo(second)).thenReturn(-1);
when(first.compareTo(third)).thenReturn(-1);
when(second.compareTo(first)).thenReturn(1);
when(second.compareTo(third)).thenReturn(-1);
when(third.compareTo(first)).thenReturn(1);
when(third.compareTo(second)).thenReturn(1);
// pass the events not sorted:
List<IEvent> events = Arrays.asList(second, first, third);
when(repo.getEventsSubscribedOnProperScheduler()).thenReturn(Observable.from(events));
sut.loadEvents(false, callback);
// verify we received them in order
List<IEvent> sortedEvents = Arrays.asList(first, second, third);
verify(callback).onEventsLoadingStarted("modif id");
verify(callback).onEventsLoadingFinished(sortedEvents, "modif id");
}
@Override
public void onClick(View v) {
if (v.getId() == R.id.btn_obdervable_test1) {
if (RxBus.hasObservers()) {
RxBus.send(new TapEvent());
}
} else if (v.getId() == R.id.btn_obdervable_test2) {
if (RxBus.hasObservers()) {
mRemoteServerEngine
.loadMoreDataRx(1)
.subscribeOn(Schedulers.io())
.observeOn(Schedulers.io())
.flatMap(refreshModels -> Observable.from(refreshModels))
.filter(refreshModel -> !refreshModel.title.contains("4"))
.take(3)
.observeOn(AndroidSchedulers.mainThread())
.subscribe(
refreshModel -> {
if (RxBus.hasObservers()) {
RxBus.send(new RefreshModelEvent(refreshModel));
}
});
}
}
}
@Test
public void testTimeoutSelectorTimeoutFirst() {
PublishSubject<Integer> source = PublishSubject.create();
final PublishSubject<Integer> timeout = PublishSubject.create();
Func1<Integer, Observable<Integer>> timeoutFunc =
new Func1<Integer, Observable<Integer>>() {
@Override
public Observable<Integer> call(Integer t1) {
return timeout;
}
};
Func0<Observable<Integer>> firstTimeoutFunc =
new Func0<Observable<Integer>>() {
@Override
public Observable<Integer> call() {
return timeout;
}
};
Observable<Integer> other = Observable.from(Arrays.asList(100));
@SuppressWarnings("unchecked")
Observer<Object> o = mock(Observer.class);
InOrder inOrder = inOrder(o);
source.timeout(firstTimeoutFunc, timeoutFunc, other).subscribe(o);
timeout.onNext(1);
inOrder.verify(o).onNext(100);
inOrder.verify(o).onCompleted();
verify(o, never()).onError(any(Throwable.class));
}
public AbstractLoadBalancer<String, String> setup(
Func1<FailureListener, ? extends TcpClientEventListener> eventListenerFactory,
LoadBalancerStrategy<HostConnectionProvider<String, String>> loadBalancingStratgey,
List<Instance<SocketAddress>> hosts) {
this.hosts = Observable.from(hosts);
this.eventListenerFactory = eventListenerFactory;
this.loadBalancingStratgey = loadBalancingStratgey;
if (null != lbFactory) {
loadBalancer = lbFactory.call(this.hosts, eventListenerFactory, loadBalancingStratgey);
return loadBalancer;
}
loadBalancer =
new AbstractLoadBalancer<String, String>(
this.hosts, eventListenerFactory, loadBalancingStratgey) {
@Override
protected ConnectionProvider<String, String> newConnectionProviderForHost(
final Instance<SocketAddress> host,
final ConnectionFactory<String, String> connectionFactory) {
return new ConnectionProvider<String, String>(connectionFactory) {
@Override
public ConnectionObservable<String, String> nextConnection() {
return connectionFactory.newConnection(host.getValue());
}
};
}
};
return getLoadBalancer();
}
