@Test
public void testBlockingChannelSendingThread() throws Exception {
assumeThat(policy, is(OverflowPolicy.BLOCK));
final Channel<Integer> ch = newChannel();
Fiber<Integer> fib =
new Fiber<Integer>(
fjPool,
new SuspendableCallable<Integer>() {
@Override
public Integer run() throws SuspendExecution, InterruptedException {
int i = 0;
while (ch.receive() != null) {
i++;
Fiber.sleep(50);
}
return i;
}
})
.start();
for (int i = 0; i < 10; i++) ch.send(i);
ch.close();
assertThat(fib.get(), is(10));
}
@Ignore
@Test
public void whenReceiveNotCalledFromOwnerThenThrowException4() throws Exception {
assumeTrue(Debug.isAssertionsEnabled());
final Channel<String> ch = newChannel();
Thread thread =
new Thread(
new Runnable() {
@Override
public void run() {
try {
ch.receive();
} catch (InterruptedException ex) {
throw new AssertionError(ex);
} catch (SuspendExecution e) {
throw new AssertionError(e);
}
}
});
thread.start();
Thread.sleep(100);
ch.send("a message");
boolean thrown = false;
try {
ch.receive();
} catch (Throwable e) {
thrown = true;
}
assertTrue(thrown);
thread.join();
}
@Ignore
@Test
public void whenReceiveNotCalledFromOwnerThenThrowException3() throws Exception {
assumeTrue(Debug.isAssertionsEnabled());
final Channel<String> ch = newChannel();
Fiber fib =
new Fiber(
"fiber",
fjPool,
new SuspendableRunnable() {
@Override
public void run() throws SuspendExecution, InterruptedException {
Fiber.sleep(100);
ch.send("a message");
boolean thrown = false;
try {
ch.receive();
} catch (Throwable e) {
thrown = true;
}
assertTrue(thrown);
}
})
.start();
String m = ch.receive();
assertThat(m, equalTo("a message"));
fib.join();
}
@Test
public void sendMessageFromThreadToThread() throws Exception {
final Channel<String> ch = newChannel();
Thread thread =
new Thread(
new Runnable() {
@Override
public void run() {
try {
Thread.sleep(100);
ch.send("a message");
} catch (InterruptedException | SuspendExecution ex) {
throw new AssertionError(ex);
}
}
});
thread.start();
String m = ch.receive();
assertThat(m, equalTo("a message"));
thread.join();
}
@Test
public void whenChannelOverflowsThrowException() throws Exception {
assumeThat(policy, is(OverflowPolicy.THROW));
assumeThat(mailboxSize, greaterThan(0));
final Channel<Integer> ch = newChannel();
int i = 0;
try {
for (i = 0; i < 10; i++) ch.send(i);
fail();
} catch (QueueCapacityExceededException e) {
System.out.println("i = " + i);
}
}
@Test
public void testChannelGroupReceive() throws Exception {
final Channel<String> channel1 = newChannel();
final Channel<String> channel2 = newChannel();
final Channel<String> channel3 = newChannel();
final ReceivePortGroup<String> group =
new ReceivePortGroup<String>(channel1, channel2, channel3);
Fiber fib =
new Fiber(
"fiber",
fjPool,
new SuspendableRunnable() {
@Override
public void run() throws SuspendExecution, InterruptedException {
String m1 = group.receive();
String m2 = channel2.receive();
assertThat(m1, equalTo("hello"));
assertThat(m2, equalTo("world!"));
}
})
.start();
Thread.sleep(100);
channel3.send("hello");
Thread.sleep(100);
if (policy != OverflowPolicy.BLOCK) {
channel1.send("goodbye"); // TransferChannel will block here
Thread.sleep(100);
}
channel2.send("world!");
fib.join();
}
@Test
public void whenChannelClosedThenBlockedSendsComplete() throws Exception {
assumeThat(policy, is(OverflowPolicy.BLOCK));
final Channel<Integer> ch = newChannel();
final SuspendableRunnable r =
new SuspendableRunnable() {
@Override
public void run() throws SuspendExecution, InterruptedException {
for (int i = 1; i <= 100; i++) {
ch.send(i);
}
}
};
Fiber fib1 = new Fiber("fiber", fjPool, r).start();
Fiber fib2 = new Fiber("fiber", fjPool, r).start();
Thread.sleep(500);
ch.close();
fib1.join();
fib2.join();
}
@Test
public void sendMessageFromThreadToFiber() throws Exception {
final Channel<String> ch = newChannel();
Fiber fib =
new Fiber(
"fiber",
fjPool,
new SuspendableRunnable() {
@Override
public void run() throws SuspendExecution, InterruptedException {
String m = ch.receive();
assertThat(m, equalTo("a message"));
}
})
.start();
Thread.sleep(50);
ch.send("a message");
fib.join();
}
@Test
public void testChannelCloseWithSleep() throws Exception {
final Channel<Integer> ch = newChannel();
Fiber fib =
new Fiber(
"fiber",
fjPool,
new SuspendableRunnable() {
@Override
public void run() throws SuspendExecution, InterruptedException {
for (int i = 1; i <= 5; i++) {
Integer m = ch.receive();
assertThat(m, equalTo(i));
}
Integer m = ch.receive();
assertThat(m, nullValue());
assertTrue(ch.isClosed());
}
})
.start();
Thread.sleep(50);
ch.send(1);
ch.send(2);
ch.send(3);
ch.send(4);
ch.send(5);
Thread.sleep(50);
ch.close();
ch.send(6);
ch.send(7);
fib.join();
}
@Test
public void testChannelGroupReceiveWithTimeout() throws Exception {
final Channel<String> channel1 = newChannel();
final Channel<String> channel2 = newChannel();
final Channel<String> channel3 = newChannel();
final ReceivePortGroup<String> group =
new ReceivePortGroup<String>(channel1, channel2, channel3);
Fiber fib =
new Fiber(
"fiber",
fjPool,
new SuspendableRunnable() {
@Override
public void run() throws SuspendExecution, InterruptedException {
String m1 = group.receive();
String m2 = channel2.receive();
String m3 = group.receive(10, TimeUnit.MILLISECONDS);
String m4 = group.receive(200, TimeUnit.MILLISECONDS);
assertThat(m1, equalTo("hello"));
assertThat(m2, equalTo("world!"));
assertThat(m3, nullValue());
assertThat(m4, equalTo("foo"));
}
})
.start();
Thread.sleep(100);
channel3.send("hello");
Thread.sleep(100);
channel2.send("world!");
Thread.sleep(100);
channel1.send("foo");
fib.join();
}
