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Refactor BackpressureTest

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This commit is contained in:
pivovarit 2017-02-05 17:16:27 +01:00
parent 5b79f605a4
commit 4e91a6388c
1 changed files with 65 additions and 49 deletions
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76
rxjava/src/test/java/com/baeldung/rxjava/RxJavaBackpressureTest.java
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@ -10,6 +10,7 @@ import rx.subjects.PublishSubject;
import java.util.List; import java.util.List;
import java.util.concurrent.TimeUnit; import java.util.concurrent.TimeUnit;
import java.util.stream.IntStream;
import static org.junit.Assert.assertTrue; import static org.junit.Assert.assertTrue;
@ -21,13 +22,16 @@ public class RxJavaBackpressureTest {
TestSubscriber<Integer> testSubscriber = new TestSubscriber<>(); TestSubscriber<Integer> testSubscriber = new TestSubscriber<>();
//when //when
Observable.range(1, 1_000_000) Observable
.range(1, 1_000_000)
.observeOn(Schedulers.computation()) .observeOn(Schedulers.computation())
.subscribe(testSubscriber); .subscribe(testSubscriber);
//then //then
testSubscriber.awaitTerminalEvent(); testSubscriber.awaitTerminalEvent();
assertTrue(testSubscriber.getOnErrorEvents().size() == 0); assertTrue(testSubscriber
.getOnErrorEvents()
.size() == 0);
} }
@ -37,14 +41,14 @@ public class RxJavaBackpressureTest {
TestSubscriber<Integer> testSubscriber = new TestSubscriber<>(); TestSubscriber<Integer> testSubscriber = new TestSubscriber<>();
PublishSubject<Integer> source = PublishSubject.<Integer> create(); PublishSubject<Integer> source = PublishSubject.<Integer> create();
source.observeOn(Schedulers.computation()) source
.observeOn(Schedulers.computation())
.subscribe(testSubscriber); .subscribe(testSubscriber);
//when //when
for (int i = 0; i < 1_000_000; i++) { IntStream
source.onNext(i); .range(0, 1_000_000)
.forEach(source::onNext);
}
//then //then
testSubscriber.awaitTerminalEvent(); testSubscriber.awaitTerminalEvent();
@ -58,17 +62,20 @@ public class RxJavaBackpressureTest {
PublishSubject<Integer> source = PublishSubject.<Integer> create(); PublishSubject<Integer> source = PublishSubject.<Integer> create();
//when //when
source.window(500) source
.window(500)
.observeOn(Schedulers.computation()) .observeOn(Schedulers.computation())
.subscribe(testSubscriber); .subscribe(testSubscriber);
for (int i = 0; i < 1_000; i++) { IntStream
source.onNext(i); .range(0, 1_000)
} .forEach(source::onNext);
//then //then
testSubscriber.awaitTerminalEvent(2, TimeUnit.SECONDS); testSubscriber.awaitTerminalEvent(2, TimeUnit.SECONDS);
assertTrue(testSubscriber.getOnErrorEvents().size() == 0); assertTrue(testSubscriber
.getOnErrorEvents()
.size() == 0);
} }
@ -79,21 +86,24 @@ public class RxJavaBackpressureTest {
PublishSubject<Integer> source = PublishSubject.<Integer> create(); PublishSubject<Integer> source = PublishSubject.<Integer> create();
//when //when
source.buffer(1024) source
.buffer(1024)
.observeOn(Schedulers.computation()) .observeOn(Schedulers.computation())
.subscribe(testSubscriber); .subscribe(testSubscriber);
for (int i = 0; i < 1_000; i++) { IntStream
source.onNext(i); .range(0, 1_000)
} .forEach(source::onNext);
//then //then
testSubscriber.awaitTerminalEvent(2, TimeUnit.SECONDS); testSubscriber.awaitTerminalEvent(2, TimeUnit.SECONDS);
assertTrue(testSubscriber.getOnErrorEvents().size() == 0); assertTrue(testSubscriber
.getOnErrorEvents()
.size() == 0);
} }
@Test @Test
public void givenHotObservable_whenSkippingOperationIsDefined_shouldNotThrowException() { public void givenHotObservable_whenSkippingOperationIsDefined_shouldNotThrowException() {
//given //given
@ -106,13 +116,16 @@ public class RxJavaBackpressureTest {
.observeOn(Schedulers.computation()) .observeOn(Schedulers.computation())
.subscribe(testSubscriber); .subscribe(testSubscriber);
for (int i = 0; i < 1_000; i++) { IntStream
source.onNext(i); .range(0, 1_000)
} .forEach(source::onNext);
//then //then
testSubscriber.awaitTerminalEvent(2, TimeUnit.SECONDS); testSubscriber.awaitTerminalEvent(2, TimeUnit.SECONDS);
assertTrue(testSubscriber.getOnErrorEvents().size() == 0); assertTrue(testSubscriber
.getOnErrorEvents()
.size() == 0);
} }
@ -122,34 +135,37 @@ public class RxJavaBackpressureTest {
TestSubscriber<Integer> testSubscriber = new TestSubscriber<>(); TestSubscriber<Integer> testSubscriber = new TestSubscriber<>();
//when //when
Observable.range(1, 1_000_000) Observable
.onBackpressureBuffer(16, () -> { .range(1, 1_000_000)
}, .onBackpressureBuffer(16, () -> {}, BackpressureOverflow.ON_OVERFLOW_DROP_OLDEST)
BackpressureOverflow.ON_OVERFLOW_DROP_OLDEST)
.observeOn(Schedulers.computation()) .observeOn(Schedulers.computation())
.subscribe(testSubscriber); .subscribe(testSubscriber);
//then //then
testSubscriber.awaitTerminalEvent(2, TimeUnit.SECONDS); testSubscriber.awaitTerminalEvent(2, TimeUnit.SECONDS);
assertTrue(testSubscriber.getOnErrorEvents().size() == 0); assertTrue(testSubscriber
.getOnErrorEvents()
.size() == 0);
} }
@Test @Test
public void givenHotObservable_whenOnBackpressureDropDefined_shouldNotThrowException() { public void givenHotObservable_whenOnBackpressureDropDefined_shouldNotThrowException() {
//given //given
TestSubscriber<Integer> testSubscriber = new TestSubscriber<>(); TestSubscriber<Integer> testSubscriber = new TestSubscriber<>();
//when //when
Observable.range(1, 1_000_000) Observable
.range(1, 1_000_000)
.onBackpressureDrop() .onBackpressureDrop()
.observeOn(Schedulers.computation()) .observeOn(Schedulers.computation())
.subscribe(testSubscriber); .subscribe(testSubscriber);
//then //then
testSubscriber.awaitTerminalEvent(2, TimeUnit.SECONDS); testSubscriber.awaitTerminalEvent(2, TimeUnit.SECONDS);
assertTrue(testSubscriber.getOnErrorEvents().size() == 0); assertTrue(testSubscriber
.getOnErrorEvents()
.size() == 0);
} }
} }