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additional buffer tests #761

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additional buffer tests #761

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143 changes: 143 additions & 0 deletions rxjava-core/src/test/java/rx/operators/OperationBufferTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;

import org.junit.Before;
import org.junit.Test;
Expand Down Expand Up @@ -516,4 +517,146 @@ public void bufferWithBOBoundaryThrows() {
verify(o, never()).onCompleted();
verify(o, never()).onNext(any());
}

@Test
public void bufferTimeSpanCountEmitAllItems() throws InterruptedException {

final int maxRounds = 100;
final int maxCount = 1000;

final int bufferCount = 42;
final int bufferTimeSpan = 42; // µs

int round = 0;
final AtomicInteger count = new AtomicInteger(0);
do {
++round;
count.set(0);

Observable<List<Integer>> observable = Observable //
.range(1, maxCount) //
.buffer(bufferTimeSpan, TimeUnit.MICROSECONDS, bufferCount);

final CountDownLatch lock = new CountDownLatch(1);

observable.subscribe( // onNext
new Action1<List<Integer>>() {
@Override
public void call(List<Integer> val) {
count.addAndGet(val.size());
}
}, // onError
new Action1<Throwable>() {
@Override
public void call(Throwable err) {
lock.countDown();
}
}, // onComplete
new Action0() {
@Override
public void call() {
lock.countDown();
}
}
);
lock.await();
} while ((maxCount == count.get()) && (round < maxRounds));

assertEquals(maxCount, count.get());
assertEquals(maxRounds, round);
}

@Test
public void bufferTimeSpanEmitAllItems() throws InterruptedException {

final int maxRounds = 100;
final int maxCount = 1000;

final int bufferTimeSpan = 42; // µs

int round = 0;
final AtomicInteger count = new AtomicInteger(0);
do {
++round;
count.set(0);

Observable<List<Integer>> observable = Observable //
.range(1, maxCount) //
.buffer(bufferTimeSpan, TimeUnit.MICROSECONDS);

final CountDownLatch lock = new CountDownLatch(1);

observable.subscribe( // onNext
new Action1<List<Integer>>() {
@Override
public void call(List<Integer> val) {
count.addAndGet(val.size());
}
}, // onError
new Action1<Throwable>() {
@Override
public void call(Throwable err) {
lock.countDown();
}
}, // onComplete
new Action0() {
@Override
public void call() {
lock.countDown();
}
}
);
lock.await();
} while ((maxCount == count.get()) && (round < maxRounds));

assertEquals(maxCount, count.get());
assertEquals(maxRounds, round);
}

@Test
public void bufferCountEmitAllItems() throws InterruptedException {

final int maxRounds = 100;
final int maxCount = 1000;

final int bufferCount = 42;

int round = 0;
final AtomicInteger count = new AtomicInteger(0);
do {
++round;
count.set(0);

Observable<List<Integer>> observable = Observable //
.range(1, maxCount) //
.buffer(bufferCount);

final CountDownLatch lock = new CountDownLatch(1);

observable.subscribe( // onNext
new Action1<List<Integer>>() {
@Override
public void call(List<Integer> val) {
count.addAndGet(val.size());
}
}, // onError
new Action1<Throwable>() {
@Override
public void call(Throwable err) {
lock.countDown();
}
}, // onComplete
new Action0() {
@Override
public void call() {
lock.countDown();
}
}
);
lock.await();
} while ((maxCount == count.get()) && (round < maxRounds));

assertEquals(maxCount, count.get());
assertEquals(maxRounds, round);
}
}