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BAEL-572 move code to tests

This commit is contained in:
Tomasz Lelek 2017-02-05 10:27:44 +01:00
parent 842dd43b21
commit 0e78d76f22
7 changed files with 161 additions and 92 deletions
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6
rxjava/pom.xml
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@ -26,9 +26,15 @@
<artifactId>rxjava</artifactId>
<version>${rx.java.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
</dependency>
</dependencies>
<properties>
<junit.version>4.12</junit.version>
<rx.java.version>1.2.5</rx.java.version>
</properties>

16
rxjava/src/main/java/com/baelding/rxjava/ColdObservableBackpressure.java
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@ -1,16 +0,0 @@
package com.baelding.rxjava;
import rx.Observable;
import rx.schedulers.Schedulers;
public class ColdObservableBackpressure {
public static void main(String[] args) throws InterruptedException {
Observable.range(1, 1_000_000)
.observeOn(Schedulers.computation())
.subscribe(ComputeFunction::compute);
Thread.sleep(10_000);
}
}

18
rxjava/src/main/java/com/baelding/rxjava/HotObservableBackpressureBatching.java
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@ -1,18 +0,0 @@
package com.baelding.rxjava;
import rx.schedulers.Schedulers;
import rx.subjects.PublishSubject;
public class HotObservableBackpressureBatching {
public static void main(String[] args) throws InterruptedException {
PublishSubject<Integer> source = PublishSubject.<Integer>create();
source.window(500).observeOn(Schedulers.computation()).subscribe(ComputeFunction::compute, Throwable::printStackTrace);
for (int i = 0; i < 1_000_000; i++) {
source.onNext(i);
}
Thread.sleep(10_000);
}
}

17
rxjava/src/main/java/com/baelding/rxjava/HotObservableBackpressureBuffering.java
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@ -1,17 +0,0 @@
package com.baelding.rxjava;
import rx.schedulers.Schedulers;
import rx.subjects.PublishSubject;
public class HotObservableBackpressureBuffering {
public static void main(String[] args) throws InterruptedException {
PublishSubject<Integer> source = PublishSubject.<Integer>create();
source.buffer(1024).observeOn(Schedulers.computation()).subscribe(ComputeFunction::compute, Throwable::printStackTrace);
for (int i = 0; i < 1_000_000; i++) {
source.onNext(i);
}
Thread.sleep(10_000);
}
}

21
rxjava/src/main/java/com/baelding/rxjava/HotObservableBackpressureSkipping.java
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@ -1,21 +0,0 @@
package com.baelding.rxjava;
import rx.schedulers.Schedulers;
import rx.subjects.PublishSubject;
import java.util.concurrent.TimeUnit;
public class HotObservableBackpressureSkipping {
public static void main(String[] args) throws InterruptedException {
PublishSubject<Integer> source = PublishSubject.<Integer>create();
source.sample(100, TimeUnit.MILLISECONDS)
// .throttleFirst(100, TimeUnit.MILLISECONDS)
.observeOn(Schedulers.computation()).subscribe(ComputeFunction::compute, Throwable::printStackTrace);
for (int i = 0; i < 1_000_000; i++) {
source.onNext(i);
}
Thread.sleep(10_000);
}
}

20
rxjava/src/main/java/com/baelding/rxjava/HotObservableWithoutBackpressure.java
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@ -1,20 +0,0 @@
package com.baelding.rxjava;
import rx.schedulers.Schedulers;
import rx.subjects.PublishSubject;
public class HotObservableWithoutBackpressure {
public static void main(String[] args) throws InterruptedException {
PublishSubject<Integer> source = PublishSubject.<Integer>create();
source.observeOn(Schedulers.computation())
.subscribe(ComputeFunction::compute, Throwable::printStackTrace);
for (int i = 0; i < 1_000_000; i++) {
source.onNext(i);
}
Thread.sleep(10_000);
}
}

155
rxjava/src/test/java/com/baeldung/rxjava/RxJavaBackpressureTest.java Normal file
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@ -0,0 +1,155 @@
package com.baeldung.rxjava;
import org.junit.Test;
import rx.BackpressureOverflow;
import rx.Observable;
import rx.exceptions.MissingBackpressureException;
import rx.observers.TestSubscriber;
import rx.schedulers.Schedulers;
import rx.subjects.PublishSubject;
import java.util.List;
import java.util.concurrent.TimeUnit;
import static org.junit.Assert.assertTrue;
public class RxJavaBackpressureTest {
@Test
public void givenColdObservable_shouldNotThrowException() {
//given
TestSubscriber<Integer> testSubscriber = new TestSubscriber<>();
//when
Observable.range(1, 1_000_000)
.observeOn(Schedulers.computation())
.subscribe(testSubscriber);
//then
testSubscriber.awaitTerminalEvent();
assertTrue(testSubscriber.getOnErrorEvents().size() == 0);
}
@Test
public void givenHotObservable_whenBackpressureNotDefined_shouldTrowException() {
//given
TestSubscriber<Integer> testSubscriber = new TestSubscriber<>();
PublishSubject<Integer> source = PublishSubject.<Integer>create();
source.observeOn(Schedulers.computation())
.subscribe(testSubscriber);
//when
for (int i = 0; i < 1_000_000; i++) {
source.onNext(i);
}
//then
testSubscriber.awaitTerminalEvent();
testSubscriber.assertError(MissingBackpressureException.class);
}
@Test
public void givenHotObservable_whenWindowIsDefined_shouldNotThrowException() {
//given
TestSubscriber<Observable<Integer>> testSubscriber = new TestSubscriber<>();
PublishSubject<Integer> source = PublishSubject.<Integer>create();
//when
source.window(500)
.observeOn(Schedulers.computation())
.subscribe(testSubscriber);
for (int i = 0; i < 1_000; i++) {
source.onNext(i);
}
//then
testSubscriber.awaitTerminalEvent(2, TimeUnit.SECONDS);
assertTrue(testSubscriber.getOnErrorEvents().size() == 0);
}
@Test
public void givenHotObservable_whenBufferIsDefined_shouldNotThrowException() {
//given
TestSubscriber<List<Integer>> testSubscriber = new TestSubscriber<>();
PublishSubject<Integer> source = PublishSubject.<Integer>create();
//when
source.buffer(1024)
.observeOn(Schedulers.computation())
.subscribe(testSubscriber);
for (int i = 0; i < 1_000; i++) {
source.onNext(i);
}
//then
testSubscriber.awaitTerminalEvent(2, TimeUnit.SECONDS);
assertTrue(testSubscriber.getOnErrorEvents().size() == 0);
}
@Test
public void givenHotObservable_whenSkippingOperationIsDefined_shouldNotThrowException() {
//given
TestSubscriber<Integer> testSubscriber = new TestSubscriber<>();
PublishSubject<Integer> source = PublishSubject.<Integer>create();
//when
source.sample(100, TimeUnit.MILLISECONDS)
// .throttleFirst(100, TimeUnit.MILLISECONDS)
.observeOn(Schedulers.computation())
.subscribe(testSubscriber);
for (int i = 0; i < 1_000; i++) {
source.onNext(i);
}
//then
testSubscriber.awaitTerminalEvent(2, TimeUnit.SECONDS);
assertTrue(testSubscriber.getOnErrorEvents().size() == 0);
}
@Test
public void givenHotObservable_whenOnBackpressureBufferDefined_shouldNotThrowException() {
//given
TestSubscriber<Integer> testSubscriber = new TestSubscriber<>();
//when
Observable.range(1, 1_000_000)
.onBackpressureBuffer(16, () -> {
},
BackpressureOverflow.ON_OVERFLOW_DROP_OLDEST)
.observeOn(Schedulers.computation())
.subscribe(testSubscriber);
//then
testSubscriber.awaitTerminalEvent(2, TimeUnit.SECONDS);
assertTrue(testSubscriber.getOnErrorEvents().size() == 0);
}
@Test
public void givenHotObservable_whenOnBackpressureDropDefined_shouldNotThrowException() {
//given
TestSubscriber<Integer> testSubscriber = new TestSubscriber<>();
//when
Observable.range(1, 1_000_000)
.onBackpressureDrop()
.observeOn(Schedulers.computation())
.subscribe(testSubscriber);
//then
testSubscriber.awaitTerminalEvent(2, TimeUnit.SECONDS);
assertTrue(testSubscriber.getOnErrorEvents().size() == 0);
}
}