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benjchristensenbenjchristensen
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Make Observable Methods Final
Their behavior is interrelated and co-dependent and should therefore not be over-written. Observable itself is not made final as there are some limited reasons for inheritance (such as GroupedObservable and Subjects).
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‎rxjava-contrib/rxjava-android/src/test/java/rx/android/operators/OperationObserveFromAndroidComponentTest.java‎

Lines changed: 77 additions & 37 deletions
Original file line numberDiff line numberDiff line change
@@ -1,55 +1,54 @@
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/**
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* Copyright 2013 Netflix, Inc.
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*
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package rx.operators;
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package rx.android.operators;
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import static org.mockito.Matchers.any;
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import static org.mockito.Matchers.anyInt;
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import static org.mockito.Mockito.mock;
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import static org.mockito.Mockito.never;
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import static org.mockito.Mockito.times;
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import static org.mockito.Mockito.verify;
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import static org.mockito.Mockito.verifyNoMoreInteractions;
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import static org.mockito.Mockito.when;
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import static org.junit.Assert.*;
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import static org.mockito.Matchers.*;
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import static org.mockito.Mockito.*;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.Field;
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import java.lang.reflect.InvocationTargetException;
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import java.util.concurrent.Callable;
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import java.util.concurrent.Executors;
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import java.util.concurrent.Future;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.atomic.AtomicReference;
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import org.junit.Before;
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import org.junit.Ignore;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import static org.junit.Assert.*;
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import org.mockito.Mock;
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import org.mockito.MockitoAnnotations;
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import org.robolectric.RobolectricTestRunner;
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import org.robolectric.annotation.Config;
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import rx.Observable;
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import rx.Observable.OnSubscribeFunc;
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import rx.Observer;
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import rx.Subscription;
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import rx.android.schedulers.AndroidSchedulers;
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import rx.operators.OperationObserveFromAndroidComponent;
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import rx.schedulers.Schedulers;
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import rx.subjects.PublishSubject;
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import rx.subscriptions.BooleanSubscription;
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import rx.util.functions.Action1;
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import android.app.Activity;
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import android.app.Fragment;
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import android.os.Looper;
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import android.util.Log;
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import java.lang.reflect.Field;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.InvocationTargetException;
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import java.util.concurrent.Callable;
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import java.util.concurrent.Executors;
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import java.util.concurrent.Future;
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import java.util.concurrent.TimeUnit;
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@RunWith(RobolectricTestRunner.class)
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@Config(manifest = Config.NONE)
@@ -64,9 +63,6 @@ public class OperationObserveFromAndroidComponentTest {
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@Mock
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private Activity mockActivity;
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@Mock
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private Observable<Integer> mockObservable;
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@Before
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public void setupMocks() {
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MockitoAnnotations.initMocks(this);
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@Test
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public void itThrowsIfObserverSubscribesFromBackgroundThread() throws Exception {
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final Observable<Integer> testObservable = Observable.from(1);
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final Future<Object> future = Executors.newSingleThreadExecutor().submit(new Callable<Object>() {
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@Override
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public Object call() throws Exception {
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OperationObserveFromAndroidComponent.observeFromAndroidComponent(
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mockObservable, mockFragment).subscribe(mockObserver);
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testObservable, mockFragment).subscribe(mockObserver);
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return null;
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}
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});
@@ -88,10 +85,44 @@ public Object call() throws Exception {
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verifyNoMoreInteractions(mockObserver);
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}
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@Test
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// TODO needs to be fixed, see comments inline below
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@Ignore
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public void itObservesTheSourceSequenceOnTheMainUIThread() {
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OperationObserveFromAndroidComponent.observeFromAndroidComponent(mockObservable, mockFragment).subscribe(mockObserver);
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verify(mockObservable).observeOn(AndroidSchedulers.mainThread());
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final Observable<Integer> testObservable = Observable.from(1)
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.observeOn(Schedulers.newThread())
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.doOnNext(new Action1<Integer>() {
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@Override
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public void call(Integer t1) {
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System.out.println("threadA: " + Thread.currentThread());
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}
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})
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.observeOn(AndroidSchedulers.mainThread())
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.doOnNext(new Action1<Integer>() {
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@Override
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public void call(Integer t1) {
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System.out.println("threadB: " + Thread.currentThread());
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}
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});
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final AtomicReference<String> currentThreadName = new AtomicReference<String>();
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OperationObserveFromAndroidComponent.observeFromAndroidComponent(testObservable, mockFragment).subscribe(new Action1<Integer>() {
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@Override
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public void call(Integer i) {
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System.out.println("threadV: " + Thread.currentThread());
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currentThreadName.set(Thread.currentThread().getName());
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}
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});
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assertEquals("androidMainThreadName???", currentThreadName.get());
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//TODO Can't use Mockito to validate Observable.observeOn as it is now marked as final.
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// I can't figure out what to validate about the AndroidSchedulers.mainThread()
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// as the code above doesn't print `threadB` so I can't see what Thread it should be.
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// I was going to run it on NewThread then observeOn to AndroidThread and validate it jumped
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// to the correct thread, but it doesn't do anything. Need to work with Android devs.
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}
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@Test
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verifyNoMoreInteractions(mockObserver);
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}
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private Observable.OnSubscribeFunc<Integer> newOnSubscribeFragmentInstance(Observable<Integer> source, Fragment fragment) throws NoSuchMethodException, IllegalAccessException, InstantiationException, InvocationTargetException {
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private Observable.OnSubscribeFunc<Integer> newOnSubscribeFragmentInstance(Observable<Integer> source, Fragment fragment) throws NoSuchMethodException, IllegalAccessException, InstantiationException, InvocationTargetException {
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final Class[] klasses = OperationObserveFromAndroidComponent.class.getDeclaredClasses();
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Class onSubscribeFragmentClass = null;
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for (Class klass : klasses) {
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@Test
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public void itUnsubscribesFromTheSourceSequence() {
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Subscription underlying = mock(Subscription.class);
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when(mockObservable.observeOn(AndroidSchedulers.mainThread())).thenReturn(mockObservable);
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when(mockObservable.subscribe(any(Observer.class))).thenReturn(underlying);
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final BooleanSubscription s = new BooleanSubscription();
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Observable<Integer> testObservable = Observable.create(new OnSubscribeFunc<Integer>() {
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@Override
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public Subscription onSubscribe(Observer<? super Integer> o) {
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o.onNext(1);
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o.onCompleted();
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return s;
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}
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});
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Subscription sub = OperationObserveFromAndroidComponent.observeFromAndroidComponent(
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mockObservable, mockActivity).subscribe(mockObserver);
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testObservable, mockActivity).subscribe(mockObserver);
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sub.unsubscribe();
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211-
verify(underlying).unsubscribe();
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assertTrue(s.isUnsubscribed());
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}
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}

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